Introduction to photovoltaics: Principles, materials, and devices M. Dhamodhara Naidu, Madala Suguna, Kolla Bhanu Prakash, Tran Duc-Tan Photovoltaic Materials Synthesis Characterizations and Applications, 2026 This chapter provides an extensive introduction to the fundamentals of photovoltaics (PVs), outlining the principles, materials, and devices underpinning sunlight conversion into electricity. Starting with the essential physics of solar energy conversion, we explore the PV effect, the characteristics of solar cells, and the factors influencing their efficiency. We then delve into the materials science of PVs, discussing the properties and applications of various semiconductor materials, including silicon, thin-film compounds, and emerging PV materials. Finally, we examine PV devices’ design, fabrication, and characterization, including solar cells, modules, and systems. This introductory chapter lays the groundwork for understanding the present state of PV technology and its role in the global transition to sustainable energy.
Structural and Thermal Studies of NaNO3-based Polymer Electrolytes for Battery Applications Nandini P. S. V., Suguna Madala, Saripiralla Basamma, Gnana Kiran M., Satyanarayana J. V., Shivanarayana Ch., Sri Sravan V., Dhamodhara Naidu M., Keerthi M., Krishna Jyothi N., Rao M. C. Ecs Journal of Solid State Science and Technology, 2025 Here, provides a detailed and technical explanation of the process and techniques used in the creation and analysis of solid polymer electrolyte films. It starts by clearly introducing the materials sodium nitrate and tamarind seed polysaccharide and the method solution casting used to create the films. The paragraph then explains how different compositions were achieved by varying the weight percentages of the materials. It further highlights the analytical techniques employed, such as FTIR and XRD, which are crucial for understanding the molecular and atomic interactions within the films. Additionally, the inclusion of Differential Scanning Calorimetry (DSC) is well-explained as a tool for analyzing the thermal properties of the films, rounding out the scientific methods applied to the study. The technical language used is precise, and the overall structure is coherent and informative. The selected method to evaluate the electrical characteristics of the films, including conductivity and dielectric behavior, was AC impedance spectroscopy. Notably, the film containing 30% NaNO3 showed a decrease in crystallinity, suggesting a transition to an amorphous structure. The electrical conductivity of the mixture is measured to be 1.14 × 10−4 S cm−1 at 313 K. At a higher temperature of 373 K, the conductivity increases significantly, reaching 1.45 × 10−4 S cm−1, indicating a pronounced improvement with temperature. Dielectric analysis revealed that these films exhibited a high dielectric constant and loss at lower frequencies, with both properties decreasing as the frequency increased. In addition, the film with 30% NaNO3 exhibited a peak in the low-frequency dispersion as indicated by the electric modulus study. In contrast, both Mʹ and M" showed the lowest electric modulus values for the same composition, suggesting significant differences in their electrical properties despite the similar NaNO3 concentration.
Exceptional pyroelectric performances in infrared detectors employing NKBT-KNb lead-free ceramics. S Gouthamsri, MD Naidu, M Suguna, RS Kumar, PVP Kumar, MG Kiran, ... Solid State Communications, 116304 , 2026 2026 Citations: 1
Introduction to photovoltaics: Principles, materials, and devices MD Naidu, M Suguna, KB Prakash, T Duc-Tan Photovoltaic Materials, 1-22 , 2026 2026
Sodium–Zinc–Aluminium–Phosphate (NZAP) glasses doped with Ho 3+ ions: a study of structural and spectroscopic properties for emission applications: R … R Dagupati, K Brahmachary, MD Naidu, S Kaniyarakkal Indian Journal of Physics 99 (12), 4799-4807 , 2025 2025 Citations: 1
Rare Earth Elements in Photonic Materials MD Naidu, KB Prakash New Frontiers in Materials Science: Interdisciplinary Approaches to … , 2025 2025 Citations: 1
Structural and Thermal Studies of NaNO3-based polymer Electrolytes for Battery Applications KJN Nandini P.S.V,Suguna Madala,Saripiralla Basamma,Gnana Kiran M ... ECS Journal of Solid State Science and Technology 14 , 2025 2025 Citations: 3
Effect of B2O3 on Optical Properties of Dy3+ Ion-Doped Zinc–Aluminum–Sodium–Phosphate Glasses K Brahmachary, G Giribabu, R Dagupati, MD Naidu Journal of Applied Spectroscopy 91 (2), 384-388 , 2024 2024 Citations: 1
Оптические свойства допированных ионами Dy 3+ цинк-алюмо-натрий-фосфатных стекол с добавлением B 2 O 3 K Brahmachary, G Giribabu, R Dagupati, MD Naidu Журнал прикладной спектроскопии 91 (2), 308 , 2024 2024
Impact of AgNO 3 Addition on Luminescence of Er 3+ Ion Doped Zinc–Aluminum–Sodium–Fluorophosphate (ZANP) Glasses K Brahmachary, G Giribabu, R Dagupati, MD Naidu Bulletin of the Russian Academy of Sciences: Physics 87 (11), 1732-1736 , 2023 2023
PbMoO 4 :Eu 3+ red phosphor material for potential applications in white light emitting diodes D Rajesh, YC Ratnakaram, MD Naidu Indian Journal of Physics 88 (12), 1291-1297 , 2014 2014 Citations: 11
Kinetics of fluorescence properties of Eu3+ ion in strontium-aluminium-bismuth-borate glasses MD Naidu, D Rajesh, A Balakrishna, YC Ratnakaram Journal of Rare Earths 32 (12), 1140-1147 , 2014 2014 Citations: 41
Ho 3+ ‐doped strontium–aluminium–bismuth–borate glasses for green light emission D Rajesh, M Dhamodhara Naidu, YC Ratnakaram, A Balakrishna Luminescence 29 (7), 854-860 , 2014 2014 Citations: 27
Synthesis and photoluminescence properties of NaPbB5O9: Dy3+ phosphor materials for white light applications D Rajesh, MD Naidu, YC Ratnakaram Journal of Physics and Chemistry of Solids 75 (11), 1210-1216 , 2014 2014 Citations: 29
MOST CITED SCHOLAR PUBLICATIONS
Kinetics of fluorescence properties of Eu3+ ion in strontium-aluminium-bismuth-borate glasses MD Naidu, D Rajesh, A Balakrishna, YC Ratnakaram Journal of Rare Earths 32 (12), 1140-1147 , 2014 2014 Citations: 41
Synthesis and photoluminescence properties of NaPbB5O9: Dy3+ phosphor materials for white light applications D Rajesh, MD Naidu, YC Ratnakaram Journal of Physics and Chemistry of Solids 75 (11), 1210-1216 , 2014 2014 Citations: 29
Ho 3+ ‐doped strontium–aluminium–bismuth–borate glasses for green light emission D Rajesh, M Dhamodhara Naidu, YC Ratnakaram, A Balakrishna Luminescence 29 (7), 854-860 , 2014 2014 Citations: 27
PbMoO 4 :Eu 3+ red phosphor material for potential applications in white light emitting diodes D Rajesh, YC Ratnakaram, MD Naidu Indian Journal of Physics 88 (12), 1291-1297 , 2014 2014 Citations: 11
Structural and Thermal Studies of NaNO3-based polymer Electrolytes for Battery Applications KJN Nandini P.S.V,Suguna Madala,Saripiralla Basamma,Gnana Kiran M ... ECS Journal of Solid State Science and Technology 14 , 2025 2025 Citations: 3
Exceptional pyroelectric performances in infrared detectors employing NKBT-KNb lead-free ceramics. S Gouthamsri, MD Naidu, M Suguna, RS Kumar, PVP Kumar, MG Kiran, ... Solid State Communications, 116304 , 2026 2026 Citations: 1
Sodium–Zinc–Aluminium–Phosphate (NZAP) glasses doped with Ho 3+ ions: a study of structural and spectroscopic properties for emission applications: R … R Dagupati, K Brahmachary, MD Naidu, S Kaniyarakkal Indian Journal of Physics 99 (12), 4799-4807 , 2025 2025 Citations: 1
Rare Earth Elements in Photonic Materials MD Naidu, KB Prakash New Frontiers in Materials Science: Interdisciplinary Approaches to … , 2025 2025 Citations: 1
Effect of B2O3 on Optical Properties of Dy3+ Ion-Doped Zinc–Aluminum–Sodium–Phosphate Glasses K Brahmachary, G Giribabu, R Dagupati, MD Naidu Journal of Applied Spectroscopy 91 (2), 384-388 , 2024 2024 Citations: 1
Introduction to photovoltaics: Principles, materials, and devices MD Naidu, M Suguna, KB Prakash, T Duc-Tan Photovoltaic Materials, 1-22 , 2026 2026
Оптические свойства допированных ионами Dy 3+ цинк-алюмо-натрий-фосфатных стекол с добавлением B 2 O 3 K Brahmachary, G Giribabu, R Dagupati, MD Naidu Журнал прикладной спектроскопии 91 (2), 308 , 2024 2024
Impact of AgNO 3 Addition on Luminescence of Er 3+ Ion Doped Zinc–Aluminum–Sodium–Fluorophosphate (ZANP) Glasses K Brahmachary, G Giribabu, R Dagupati, MD Naidu Bulletin of the Russian Academy of Sciences: Physics 87 (11), 1732-1736 , 2023 2023
