Dr. Keshavamurthy K

Scopus Publications

Gd3+ doped CoFe2O4 coupled with bismuth oxybromide for visible-light-driven removal of organic contaminants: Reactive Red 120 and Acid Violet 7 and its mechanism insights
Arpita Paul Chowdhury, Sampath Chinnam, K.S. Anantharaju, B. Sharath Kumar, K. Keshavamurthy, K. Gurushantha
Journal of Rare Earths, 2025
Impact of poly-3-hexylthiophene active layer thickness for smart window applications
P. Aruna, Digvijay Narayan Singh, G.P. Prema Kumar, S.M. Naveen, K. Keshavamurthy, S. Sindhu, C.M. Joseph
Next Materials, 2025
Poly(3-hexylthiophene) (P3HT) is a semiconducting conjugated polymer also known for its electrochromic (EC) properties, i.e., change in color in response to the application of a cyclic change of electric voltage. This property makes it a promising candidate for various applications, including smart windows, displays, and sensors. Here, we are reporting the thickness-dependent EC response of spin-coated P3HT films. The emphasis is to probe the effect of the layer thickness on structural disordering/distortion and their synergetic role on EC performance of the as-prepared P3HT devices. The relationship between the P3HT film layer thicknesses on EC device performance has to be understood based on structural morphology and its microscopic ordering. In spin-coated films like P3HT, thicker layers have greater structural disorder and higher defect density. This disorder can disrupt the long-range conjugation and charge transport pathways, thereby affecting key performance metrics of the devices. For this EC study, P3HT thin films were deposited onto ITO-coated glass substrates through the spin coating method with different spin speeds ranging from 500 rpm to 2000 rpm. XRD analysis showed peak broadening for (001) pc and (002) pc planes with increasing thickness of the films, which depicted the geometrical distortion. UV-vis. Spectra showed a slight variation in the optical band structure with increasing thickness. The cyclic voltammetry (CV) study showed a reversible change in color (Purple – transparent – Purple) with the application of cyclic voltage ranging from −1 V to + 1 V. It is observed that the film with a lower thickness (∼ 300 nm) exhibited a better electrochemical reversibility than the thicker films. The findings made here have great implications for understanding the EC characteristics parameters, such as activation voltage, maximum current, and optical contrast, as they are subjected to the film thickness. Moreover, comprehending this behaviour is essential for tailoring P3HT-based devices for specific applications. • The impact of film thickness on structural and microstructural is studied. • Impact of film thickness on optoelectronic properties were investigated. • All studied systems showed color reversibility from purple to transparent. • The thinner most film showed better electrochemical reversibility. • All films showed a highly stable reversible switching for CV-hysteresis.
A mini-review on Z and S scheme heterojunction bismuth based photocatalysts towards H2 production, CO2 reduction, and pollutant degradation
Arpita Paul Chowdhury, Kurupalya Shivram Anantharaju, Kempaiah Keshavamurthy, Swarnalata Swain, Bogegowda Uma
Next Materials, 2025
Using the limitless energy of the sun, photocatalysis offers a sustainable and environmentally friendly way to clean up the environment and store energy. To overcome the drawbacks of traditional heterojunctions in terms of kinetics and thermodynamics, the step-scheme (S-scheme and Z scheme heterojunction was devised. Interestingly, because of their distinct electrical composition and layered architectures, bismuth-based catalysts have been extensively investigated in a variety of applications. Because the valence band of bismuth-based compounds is made up of hybrid orbitals, the band gap is less, making it easier to migrate photogenerated electron-hole pairs. This review's objective is to study the most recent developments and successes in the creation of Bi based S and Z scheme. First, a summary of the basic ideas behind the formation of heterojunctions was provided. Second, the important uses of S and Z scheme heterojunction photocatalysts in the creation of hydrogen, the reduction of CO2, and the degradation of pollutants were covered. Finally, the article provides valuable insights for future research and development involving in the designing and construction of a Bi-based heterojunction.
Preparation of n–p Heterojunction Polyaniline-Vanadium Pentoxide Composite for Moisture Detection
Kotresh Savanur, Aashis. S. Roy, Ameena Parveen, K. Keshavamurthy, C. Vidya, K. C. Sajjan
Journal of Electronic Materials, 2025
fFabrication of Zirconia-doped Cu2O/CuO/Cu hetero-nanocomposite: Enhanced electrochemical sensor, antibacterial and photocatalytic activity
B. Uma, K. S. Anantharaju, B. S. Surendra, Arpita Paul Chowdhury, Syed Khasim, K. Keshavamurthy, S. Malini, K. N. Harish
Ionics, 2025
Inorganic nanomaterials for senor applications
Arpita Paul Chowdhury, K.S. Anantharaju, K. Keshavamurthy
Multifunctional Inorganic Nanomaterials Synthesis Properties and Applications, 2025
Nanomaterials are considered advanced materials in the current scenario. The unique properties of nanomaterials make them ideal for applications in energy, biomedicine, food, and the environment. This chapter covers nanomaterials classification based on dimensionality and composition. Nanomaterials have been categorized as inorganic, carbon-based, organic-based, and composite based on composition and 0D, 1D, 2D, and 3D dimensions. This chapter aims to highlight the applications of nanomaterials as sensors in sensing environmental pollutants, biomedicine, humidity, gas, and explosive detection. The materials at the nanoscale proved highly sensitive, selective, fast response compared with micromaterials for analytical measures. Furthermore, the future perspectives and challenges of novel nanomaterials are highlighted.
Enhanced Optical Properties of Eu2O3-Doped Zinc Borate Lanthanum Glasses with Gold Nanoparticle Integration
D. S. Gnanendra, K. Keshavamurthy, Vinod Hegde, Arpita Paul Chowdhury, B. N. Swetha
Journal of Inorganic and Organometallic Polymers and Materials, 2025
Correction: Exploration of physical, structural, thermal, and optical properties of alkali zinc boro tellurite glasses doped with europium trioxide (Applied Physics A, (2024), 130, 11, (777), 10.1007/s00339-024-07920-x)
G. V. Jagadeesha Gowda, Utpal Deka, A. Dahshan, G. V. Ashok Reddy, B. Eraiah, R. S. Gedam, K. Keshavamurthy, C. Devaraja
Applied Physics A Materials Science and Processing, 2024
Exploration of physical, structural, thermal, and optical properties of alkali zinc boro tellurite glasses doped with europium trioxide
G. V. Jagadeesha Gowda, Utpal Deka, A. Dahshan, G. V. Ashok Reddy, B. Eraiah, R. S. Gedam, K. Keshavamurthy, C. Devaraja
Applied Physics A Materials Science and Processing, 2024
In this present work we have studied the physical, structural, thermal, and optical properties of a new set of alkali zinc boro tellurite glasses doped europium trioxide prepared using the melt-quenching method. X-ray diffraction technique (XRD) and SEM were used to determine the non-crystalline property and microstructure property of the prepared samples. By using MAS-NMR spectroscopy and FTIR spectroscopy, the structural changes in the glasses were revealed. The physical properties were described by considering the densities of glass samples and hence molar volume, polaron radius, and oxygen packing density were measured. Thermal stability of glasses was perceived by performing DSC analysis and values ranges from 145 to 190 °C. Using UV–visible absorption spectra, it was possible to calculate the optical properties. The highest refractive index is found as 2.275 for glass AZBTE0 and the lowest is 2.241 for AZBTE5 glass. The ionic behaviour of the glasses was determined by electronegativity and values lie in the range of 1.51 to 1.688. The outcomes of the physical, thermal, and optical characteristics of glasses are intended for potential uses in optical switching and Europium doped fibre amplifier applications.
Ag3PO4 anchored SnWO4 Z-scheme heterojunction for reactive blue 21 degradation: Performance analysis and mechanism insights
Arpita Paul Chowdhury, K.S. Anantharaju, K. Keshavamurthy, Sharath Kumar B, Sampath Chinnam, Shikhasmita Das, Samuel Lalthazuala Rokhum
Results in Surfaces and Interfaces, 2024
The Ag 3 PO 4 –SnWO 4 heterostructured nanocomposites have been prepared by the chemical precipitation process. The prepared nanocomposites were examined through XRD, TEM, UV–visible NIR, PL, BET, Mott Schottky, EIS, and ESR measurements. The diffraction peaks of Ag 3 PO 4 –SnWO 4 nanocomposite showed the peaks of SnWO 4 nanoparticles that are orthorhombic in the Ag 3 PO 4 tetragonal structure, which suggested that they are present in the mixed phase of the composite. Photoluminescence spectra displayed efficiency in charge separation of e − -h + pairs in Ag 3 PO 4 –SnWO 4 -1 nanocomposite. The Ag 3 PO 4 –SnWO 4 nanocomposites have been examined for degrading the aqueous solution of reactive blue (RB 21) under natural sunlight irradiation. The superior photoactivity of Ag 3 PO 4 –SnWO 4 -1 could be ascribed to the existence of a heterostructure between Ag 3 PO 4 and SnWO 4 nanoparticles that improved the light absorption ability of the heterostructure. Also, a low rate of recombination of electron and hole pairs between Ag 3 PO 4 and SnWO 4 nanoparticles was observed. The Mott–Schottky plot revealed both Ag 3 PO 4 and SnWO 4 as n type semiconductor with flat-band potential values as 0.34 and −0.54 eV respectively. The photocatalytic rate reached the fastest on the incorporation of 100 mg SnWO 4 compared to pristine Ag 3 PO 4 and SnWO 4 particles with 91.4% degradation efficiency and a rate constant of 0.257 min −1 . The photogenerated O 2 ∙− , h + and ∙ OH radicals indicated by the radical trapping experiment were mainly liable for the RB 21 degradation.
Green fuel mediated Europium doped Lanthanum ferrites Synthesis, characterisation of and their application as photocatalyst and antibacterial agents
S. Swamy, K. Gurushantha, K. Keshavamurthy, S. Meena, S. Sreenivasa, C. Soumya, S Shashidhar, Nivedita R. Desai, D.B. Aruna Kumar
Inorganic Chemistry Communications, 2024
Near-infrared and green light emission spectroscopic characteristics of Er3+ doped alumina–phosphate glasses
Vinod Hegde, K. R. Vighnesh, Sudha D. Kamath, C. S. Dwaraka Viswanath, Aljawhara H. Almuqrin, M. I. Sayyed, Jagannath Gangareddy, R. Rajaramakrishna, K. Keshavamurthy
Applied Physics A Materials Science and Processing, 2024
Effect of silver nanoparticles size on the ultrafast optical nonlinear and optical limiting properties of Nd3+ doped antimony borate glasses
Basappa, T.N. Ashoka, S.B. Kolavekar, K.N. Sathish, S. Shashidhar, K. Keshavamurthy, Aljawhara H. Almuqrin, Dalal Abdullah Aloraini, M.I. Sayyed, R. Rajaramakrishna, A.G. Pramod, S. Venugopal Rao, G. Jagannath
Infrared Physics and Technology, 2024
Synthesis of heterojunction nanocomposites ZnFe2O4/ZnO/Nb2O5 for photocatalytic, capacitor and antibacterial applications
K. Gurushantha, K. Keshavamurthy, S. Meena, Nagaraju Kottam, M.N. Manjunatha, S. Malini, S. Shashidhar, G. Shobha, T. Ramakrishnappa
Inorganic Chemistry Communications, 2024
Visible Light Active WO3/TiO2 Heterojunction Nanomaterials for Electrochemical Sensor, Capacitance and Photocatalytic Applications
K. Gurushantha, Nagaraju Kottam, S. P. Smrithi, M. S. Dharmaprakash, K. Keshavamurthy, S. Meena, N. Srinatha
Catalysis Letters, 2024
Enhanced nonlinear optical and optical liming properties of holmium containing borate glasses embedded with silver nanoparticles
Basappa, T. N. Ashoka, K. N. Sathish, K. V. Brungesh, S. Shashidhar, D. Karthik, D. Rajeshree Patwari, Hamad Syed, Aljawhara H. Almuqrin, M. I. Sayyed, K. N. N. Prasad, A. G. Pramod, K. Keshavamurthy, G. Jagannath
Journal of Materials Science Materials in Electronics, 2024
Low concentration Sm3+ ions loaded zinc sodium borate glasses for solid state lighting devices
K. Keshavamurthy, C. Vidya, T. Uthayakumar, Vinod Hegde, C.M. Joseph, P. Aruna, Arpita Paul Chowdhury, Sampath Chinnam, K. Gurushantha, C. Devaraja, Kotresh Savanur, S. Malini, B.N. Swetha
Optical Materials, 2024
Role of Semiconductor Materials in Wastewater Treatment
Arpita Paul Chowdhury, K. S. Anantharaju, Subhajit Das, K. Keshavamurthy
Handbook of Semiconductors Fundamentals to Emerging Applications, 2024
Optical, thermal and gamma ray attenuation characteristics of tungsten oxide modified: B2O3–SrCO3–TeO2–ZnO glass series
Hammam Abdurabu Thabit, Abd Khamim Ismail, M.I. Sayyed, S. Hashim, I. Abdullahi, Mohamed Elsafi, K. Keshavamurthy, G. Jagannath
Nuclear Engineering and Technology, 2024
Nonlinear optical coefficients of Samarium–activated lithium zinc borate glasses in femtosecond and nanosecond regimes
Kavitha Hanamar, G. Jagannath, S.B. Kolavekar, N.H. Ayachit, Harika Patnala, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, A.G. Pramod, K. Keshavamurthy, S. Venugopal Rao, B.G. Hegde
Optics and Laser Technology, 2024
Facile Synthesis of Spinel Zinc Aluminate Using Biofuel for Effective Photocatalytic Dye Degradation and Electrochemical Sensor Studies
K. Gurushantha, K. Keshavamurthy, S. Shashidhar, S. Meena
Journal of Mines Metals and Fuels, 2023
Enhanced nonlinear optical absorption and optical limiting performance of nanoparticles embedded lanthanum alkali borate glasses bearing holmium ions at off–resonant spectral excitation
B.N. Swetha, K. Keshavamurthy, A.L. Latha, A.G. Pramod, G. Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, T.N. Ashoka, S. Venugopal Rao, M.K. Kokila
Optical Materials, 2023
Structural, Optical, Photocatalytic, and antimicrobial attributes of niobium substituted copper nanoferrites
K. Gurushantha, B.N. Swetha, Sampath Chinnam, K. Keshavamurthy, S. Meena, B.S. Surendra, S. Malini, K.P. Roopa
Inorganic Chemistry Communications, 2023
Photoluminescence enhancement of Nd3+ doped antimony borate glasses by inclusion of silver nanoparticles
N. Chowdareddy, Ashok R. Lamani, Sampath Chinnam, G. Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, H.S. Jayanna, K. Keshavamurthy
Journal of Luminescence, 2023
Annealing and intensity dependent femtosecond nonlinear optical studies of sodium zinc borate oxide glasses incorporated with gold nanoparticles
K. Gurushantha, Harika Patnala, Sangeeta B. Kolavekar, Vadiraj B. Tangod, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, S. Venugopal Rao, A.G. Pramod, Gangareddy Jagannath, D. Rajeshree Patwari, K. Keshavamurthy
Journal of Non Crystalline Solids, 2023
Enhanced resonant nonlinear optical traits and optical limiting performance of metal nanoparticles containing borate glasses in nanosecond pulse regime
Abeer S. Altowyan, Gangareddy Jagannath, K. Keshavamurthy, M.I. Sayyed
Inorganic Chemistry Communications, 2023
Nonlinear refractive index enhancement of Nd3+ ions loaded borate glasses in the near–infrared region by silver nanoparticles
N. Chowdareddy, Ashok R. Lamani, A.G. Pramod, Vadiraj B. Tangod, Aljawhara H. Almuqrin, M.I. Sayyed, H.S. Jayanna, G. Jagannath, S. Venugopal Rao, K. Keshavamurthy
Optical Materials, 2023
Photocatalytic and antimicrobial activities of biofunctionalized Ag nanoparticles derived from combustion method
D. Rajeshree Patwari, B.N. Swetha, K. Gurushantha, G. Shobha, N. Srinatha, Sadanand K. Mushrif, Rajeev Ramachandra Kolgi, K.P. Roopa, K. Keshavamurthy
Results in Optics, 2023
Improved photocatalytic, antimicrobial and photoelectrochemical properties of nanocrystalline Cu2+-doped ZnO nanoparticles
Raksha Umashankar, S. Harshitha Devi, K. Gurushantha, S.O. Manjunatha, M. Al-Dossari, G. Shobha, K.J. Rudresh Kumar, M.R. Suresh Kumar, K. Keshavamurthy, N.S. Abd EL-Gawaad, A. Madhu, S. Satyanarayana Reddy, N. Srinatha
Ceramics International, 2023
Physical, Structural, and Photoluminescence Characteristics of Sm2O3 Doped Lithium Zinc Borate Glasses Bearing Large Concentrations of Modifier
Kavita Hanamar, B. G. Hegde, S. B. Kolavekar, N. H. Ayachit, A G Pramod, K Keshavamurthy, Mallikarjun H Anandalli, R. F. Bhajantri
Journal of Inorganic and Organometallic Polymers and Materials, 2023
Nonlinear optical properties of gold nanoparticles containing borate glasses at spectral region of surface plasmon resonance
K. Gurushantha, B.N. Swetha, S.B. Kolavekar, A.G. Pramod, Aljawhara H. Almuqrin, M.I. Sayyed, G. Jagannath, K. Keshavamurthy
Materials Today Communications, 2023
Gold nanoparticles enhanced femtosecond nonlinear optical properties of sodium borate oxide glasses
K. Gurushantha, G. Jagannath, S.B. Kolavekar, A.G. Pramod, Aljawhara H. Almuqrin, M.I. Sayyed, Narlagiri Linga Murthy, S. Venugopal Rao, K. Keshavamurthy
Infrared Physics and Technology, 2023
Nanosecond nonlinear optical and gamma radiation shielding behavior of Eu2O3 doped lanthanum containing heavy metal borate glasses: a comparative investigation
K. Gurushantha, G. Jagannath, S. B. Kolavekar, A. G. Pramod, Aljawhara H. Almuqrin, M. I. Sayyed, K. Keshavamurthy, P. Ramesh
Journal of Materials Science, 2023
Silver Nanoparticles Amplified Visible and Infrared Photoluminescence Features of Er3+ Ions Activated in Borate Glasses
Kempaiah Keshavamurthy, Gangareddy Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M. I. Sayyed, K. N. Sathish, P. Ramesh
Plasmonics, 2023
Effect of Pr6O11 on improving the Near–Infrared nonlinear optical characteristics of zinc borate glasses
A.G. Pramod, Gangareddy Jagannath, K. Keshavamurthy, B. Eraiah, P. Ramesh, Hanan Al-Ghamdi, Aljawhara H. Almuqrin, M.I. Sayyed, K.R. Venkatesha Babu, Narlagiri Linga Murthy, S. Venugopal Rao
Optical Materials, 2023
Hydrochemical analysis of ground water quality in Anchepalya industrial area Kunigal taluk Tumkur district
Y.H. Krishne Gowda, K. Gurushantha, N. Ravikantha, K. Keshavamurthy
Materials Today Proceedings, 2023
Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes
Arpita Paul Chowdhury, K. S. Anantharaju, K. Keshavamurthy, Samuel Lalthazuala Rokhum
Journal of Chemistry, 2023
Structural and Multiple Applicational Studies of Alkaline Earth Metal Spinel (AB2O4) Ferrites
S. Swamy, D.B. Aruna Kumar, K. Gurushantha, S. Meena, K. Keshavamurthy, N. Basavaraju
Asian Journal of Chemistry, 2023
Third-order optical nonlinear features of Er3+ and Pr3+ activated multicomponent borate glasses in nanosecond pulse regime: A comparative study
K. Gurushantha, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, G. Jagannath, A.G. Pramod, M.I. Sayyed, K. Keshavamurthy
Ceramics International, 2023
Enhanced Er3+ photoluminescence in sodium borate glasses containing silver nanoparticles for photonic functionalities
M.I. Sayyed, Nouf M. Almousa, K. Keshavamurthy, G. Jagannath
Optical Materials, 2022
Silver nanoparticles improved infrared photoluminescence of Nd3+ doped sodium borate glasses
K. Keshavamurthy, K. Gurushantha, M.I. Sayyed, Nouf Almousa, U. Mahaboob Pasha, G. Jagannath, P. Ramesh
Infrared Physics and Technology, 2022
Annealing duration dependent optical, nonlinear optical, and optical limiting properties of rare-earth doped glasses embedded with gold nanoparticles
Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, G. Jagannath, M.I. Sayyed, K. Keshavamurthy, A.G. Pramod, K. R Venkatesha Babu, Shlair Ibrahim Mohammed, S. Venugopal Rao
Journal of Non Crystalline Solids, 2022
Tunable ultrafast near-infrared nonlinear optical properties of Eu3+ and silver nanoparticles doped alkali borate glasses
N. Chowdareddy, Ashok R Lamani, A.G. Pramod, G. Jagannath, K. Keshavamurthy, P. Ramesh, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, B.S. Avinash, H.S. Jayanna, Hamad Syed, S. Venugopal Rao
Infrared Physics and Technology, 2022
Determination of Vardenafil in Pure and Dosage Forms by Spectrophotometry
K. P. Roopa, K. Keshavamurthy, B. Mahesh, K. P. Veena, B. S. Shankara, K. Basavaiah
Journal of Applied Spectroscopy, 2022
Enhanced near-infrared femtosecond nonlinear optical properties in zinc borate glasses activated with Er2O3
A.G. Pramod, Jagannath G, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, K.N. Sathish, K. Keshavamurthy, Sangeeta B. Kolavekar, Soma Venugopal Rao, P. Ramesh
Optical Materials, 2022
Effect of heat treatment on photoluminescence attributes of Sm3+ doped B2O3-Na2O-La2O3 glasses embedded with silver nanoparticles
B. N. Swetha, K. Keshavamurthy, G. Jagannath, K. Gurushantha, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M. I. Sayyed, A. G. Pramod, G. Devarajulu
Applied Physics A Materials Science and Processing, 2022
Optical limiting and nonlinear optical properties of silver nanoparticles embedded glasses containing rare-earth ions at 532 nm under nanosecond regime
Aljawhara H. Almuqrin, M. I. Sayyed, A. G. Pramod, K. Keshavamurthy, Gangareddy Jagannath
Journal of Materials Science Materials in Electronics, 2022
Third-order nonlinear optical properties of Sm2O3 activated cadmium alkali borate glasses
Mahesh M. Hivrekar, G. Jagannath, A.G. Pramod, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, K. Keshavamurthy, Vinod Hegde, K.N. Sathish, U. Mahaboob Pasha, S. Venugopal Rao, Sabina Yasmin, K.M. Jadhav
Optical Materials, 2022
Nonlinear Optical Limiting and Radiation Shielding Characteristics of Sm2 O3 Doped Cadmium Sodium Lithium Borate Glasses
Aljawhara H. Almuqrin, Jagannath Gangareddy, Mahesh M. Hivrekar, A. G. Pramod, M. I. Sayyed, K. Keshavamurthy, Naseem Fatima, K. M. Jadhav
Materials, 2022
Improved photoluminescence and spectroscopic features of Sm3+‒doped alkali borate glasses by embedding silver nanoparticles
B.N. Swetha, K. Keshavamurthy, A.G. Pramod, G. Devarajulu, K.P. Roopa, D. Rajeshree Patwari, Imen Kebaili, Samia ben Ahmed, M.I. Sayyed, Sultan Khan, P. Ramesh, K.N. Sathish, Naseem Fatima, K. Annapurna, G. Jagannath
Journal of Non Crystalline Solids, 2022
Photoluminescence, nonlinear optical and gamma radiation shielding properties of high concentration of Eu2O3 doped heavy metal borate glasses
Vinod Hegde, Sudha D. Kamath, Imen Kebaili, M.I. Sayyed, K.N. Sathish, C.S. Dwaraka Viswanath, A.G. Pramod, P. Ramesh, K. Keshavamurthy, G. Devarajulu, G. Jagannath
Optik, 2022
Optimising the Eu2O3 concentration and tuning the photoluminescence attributes of Eu2O3 doped borate glasses by Co–doping with silver nanoparticles
Naseem Fatima, K.N. Sathish, A.G. Pramod, Vinod Hegde, Mahesh M. Hivrekar, K. Keshavamurthy, B.N. Swetha, P. Ramesh, Badriah Albarzan, Aljawhara H Almuqrin, M.I. Sayyed, Y.F. Nadaf, G. Jagannath
Journal of Non Crystalline Solids, 2022
Synthesis of ZrO2:Dy3+ Nanoparticles: Photoluminescent, Photocatalytic, and Electrochemical Sensor Studies
K. Gurushantha, K. S. Anantharaju, Nagaraju Kottam, K. Keshavamurthy, C. R. Ravikumar, B. S. Surendra, A. Murugan, H. C. Ananda Murthy
Adsorption Science and Technology, 2022
Near-infrared nonlinear optical characteristics of silver nanoparticles embedded borate glasses activated with Sm3+ ions: Effect of heat treatment
K. Keshavamurthy, B.N. Swetha, K.N. Sathish, A.G. Pramod, Imen Kebaili, M.I. Sayyed, Shivaraja Itigi, P. Ramesh, Vinod Hegde, Narlagiri Linga Murthy, S. Venugopal Rao, G. Jagannath
Infrared Physics and Technology, 2021
Improved near‒infrared nonlinear optical properties of Sm3+ containing borate glasses: Effect of silver nanoparticles concentration
K. Keshavamurthy, B.N. Swetha, Fatemah Farraj Al‒Harbi, Jagannath G, Aljawhara H. Almuqrin, M.I. Sayyed, Samia Ben Ahmed, A.G. Pramod, Shivaraja Itigi, Ramesh P, D. Rajeshree Patwari, Narlagiri Linga Murthy, K.N. Sathish, S. Venugopal Rao
Optical Materials, 2021
Influence of size of Ag NP on spectroscopic performances of Eu3+ ions in sodium borate glass host
B.N. Swetha, K. Keshavamurthy, Gangareddy Jagannath
Optik, 2021
Silver nanoparticles enhanced photoluminescence and the spectroscopic performances of Nd3+ ions in sodium lanthanum borate glass host: Effect of heat treatment
B.N. Swetha, K. Keshavamurthy, Gaurav Gupta, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, Gangareddy Jagannath
Ceramics International, 2021
Enhanced non-linear optical properties of Eu3+ activated glasses by embedding silver nanoparticles
Naseem Fatima, A.G. Pramod, G. Jagannath, R. Rajaramakrishna, K. Keshavamurthy, P. Ramesh, K.N. Sathish, Abdullah M.S. Alhuthali, M.I. Sayyed, Vinod Hegde, S. Venugopal Rao, Y.F. Nadaf
Ceramics International, 2021
Optical properties of bismuth tellurite glasses doped with holmium oxide
C. Devaraja, G.V. Jagadeesha Gowda, B. Eraiah, K. Keshavamurthy
Ceramics International, 2021
Enhanced 1.53 µm emission of Er3+ in nano-Ag embedded sodium-boro-lanthanate glasses
B.N. Swetha, G. Devarajulu, K. Keshavamurthy, G. Jagannath, H.R. Deepa
Journal of Alloys and Compounds, 2021
Corrigendum to “Impact of thermal annealing time on luminescence properties of Eu3+ ions in silver nanoparticles embedded lanthanum sodium borate glasses” [Appl. Surf. Sci. 525 (2020) 146505] (Applied Surface Science (2020) 525, (S0169433220312629), (10.1016/j.apsusc.2020.146505))
B.N. Swetha, K. Keshavamurthy
Applied Surface Science, 2021
Impact of thermal annealing time on luminescence properties of Eu3+ ions in silver nanoparticles embedded lanthanum sodium borate glasses
B.N. Swetha, K. Keshavamurthy
Applied Surface Science, 2020
Physical, structural and photo luminescence properties of lead boro-tellurite glasses doped with Eu3+ ions
C. Devaraja, G.V. Jagadeesha Gowda, K. Keshavamurthy, B. Eraiah, G. Devarajulu, G. Jagannath
Vacuum, 2020
Dielectric properties of erbium doped alkali boro bismuth tellurite glasses
B. N. Swetha, K. Keshavamurthy
Aip Conference Proceedings, 2020
Thermal, structural and electrical properties of alkali-vanado-bismuth-tellurite glasses
G. V. Jagadeesha Gowda, K. Keshavamurthy, C. Devaraja
Aip Conference Proceedings, 2019
The optical and physical properties of holmium (Ho3+) ions doped bismuth-tellurite glasses
C. Devaraja, G. V. Jagadeesha Gowda, K. Keshavamurthy, B. Eraiah
Aip Conference Proceedings, 2019
Er3+Ions doped Alkali Boro Bismuth Tellurite Glasses for Photonic Applications
K. Keshavamurthy, B. Eraiah
Aip Conference Proceedings, 2019
Transport Properties of Er3+Ions doped Lithium Boro Bismuth Tellurite Glasses
B. Eraiah, K. Keshavamurthy
Aip Conference Proceedings, 2019
FTIR and Raman studies of Eu3+ ions doped alkali boro tellurite glasses
C. Devaraja, G. V. Jagadeesha Gowda, B. Eraiah, K. Keshavamurthy
Aip Conference Proceedings, 2019
Effect of γ-ray irradiation on optical properties of erbium doped bismuth-tellurite glasses
Keshavamurthy K., B. Eraiah
Aip Conference Proceedings, 2018
Silver lead borate glasses doped with europium ions for phosphors applications
K Keshavamurthy, B Eraiah
Bulletin of Materials Science, 2017
Transport properties of lithium ions doped vanado-bismuth-tellurite glasses
Keshavamurthy K., B. Eraiah
Aip Conference Proceedings, 2016
Europium-doped boro-bismuth-tellurite glasses for multicolor phosphor applications
K. Keshavamurthy, B. Eraiah
Canadian Journal of Physics, 2016
Optical properties of erbium doped bismuth tellurite glasses
. K. Keshavamurthy, . B. Eraiah
Advanced Science Letters, 2016

Dr. Keshavamurthy K

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