Jenichi Clairvaux Felizco

@izm.fraunhofer.de

Research Scientist, Department of Environmental and Reliability Engineering
Fraunhofer Institute for Reliability and Microintegration (IZM)

Jenichi Clairvaux Felizco


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https://researchid.co/jefelizco

EDUCATION

Dr. Eng., Nara Institute of Science and Technology (April 2018 - March 2021)
M. Eng., Nara Institute of Science and Technology (Oct 2016 - March 2018)
BS Materials Engineering, University of the Philippines (June 2009 - April 2014)

RESEARCH, TEACHING, or OTHER INTERESTS

Materials Science, Electronic, Optical and Magnetic Materials, Environmental Engineering, Surfaces, Coatings and Films
17

Scopus Publications

162

Scholar Citations

8

Scholar h-index

8

Scholar i10-index

Scopus Publications

  • Improved Thermoelectric Power Factor of InGaZnO/SiO Thin Film Transistor via Gate-Tunable Energy Filtering
    Jenichi Clairvaux Felizco, Mutsunori Uenuma, Mami N. Fujii, Yukiharu Uraoka
    IEEE Electron Device Letters, 2021
    Progress on improving the thermoelectric power factor (PF) of InGaZnO thin films by various surface treatment techniques has been seriously hindered by the innate coupled but opposing relationship between its electrical conductivity ( σ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">e</sub> ) and Seebeck coefficient (S). Therefore, proposing unique solutions to decouple these properties is crucial in advancing its thermoelectric performance. This study demonstrates that the S - σ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">e</sub> coupled relationship can be suppressed by integrating InGaZnO in an InGaZnO/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> thin film transistor, leading to a significantly enhanced PF compared to pristine InGaZnO thin films. An exponential increase in σ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">e</sub> was observed without the typical severe decline in S. An extremely narrow charge accumulation layer near the InGaZnO/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> interface could have formed under a positive applied gate voltage ( V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">G</sub> ), causing a dramatic reduction of the thermoelectrically active region to an almost two-dimensional surface. By utilizing the Kamiya-Nomura percolation modeling, it was observed that energy filtering occurs at the InGaZnO/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> interface. This likely causes a change in the shape of the potential barriers, which leads to the suppression of the S - σ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">e</sub> coupling relationship.
  • Enhanced thermoelectric transport and stability in atomic layer deposited-HfO2/ZnO and TiO2/ZnO-sandwiched multilayer thin films
    Jenichi Felizco, Taneli Juntunen, Mutsunori Uenuma, Jarkko Etula, Camilla Tossi, Yasuaki Ishikawa, Ilkka Tittonen, Yukiharu Uraoka
    ACS Applied Materials and Interfaces, 2020
    Herein, enhancements in thermoelectric (TE) performance, both the power factor (PF) and thermal stability, are exhibited by sandwiching HfO2 and TiO2 layers onto atomic layer deposited-ZnO thin films. High-temperature TE measurements from 300 to 450 K revealed an almost two-fold improvement in electrical conductivity for TiO2/ZnO (TZO) samples, primarily owing to an increase in carrier concentration by Ti doping. On the other hand, HfO2/ZnO (HZO) achieved the highest PF values owing to maintaining Seebeck coefficients comparable to pure ZnO. HZO also exhibited excellent stability after multiple thermal cycles, which has not been previously observed for pure or doped ZnO thin films. Such improvement in both TE properties and thermal stability of HZO can be attributed to a shift in crystalline orientation from the a axis to c axis, as well as the high bond dissociation energy of Hf–O, stabilizing the ZnO structure. These unique properties exhibited by HZO and TZO thin films synthesized by atomic layer deposition pave the way for next-generation transparent TE devices.
  • Optimizing the thermoelectric performance of InGaZnO thin films depending on crystallinity via hydrogen incorporation
    Jenichi Clairvaux Felizco, Mutsunori Uenuma, Yasuaki Ishikawa, Yukiharu Uraoka
    Applied Surface Science, 2020
  • Philippine natural zeolite surface engineered with CuO nanowires via a one-step thermal decomposition route
    Eleanor Olegario, Jenichi Clairvaux Felizco, Christian Mark Pelicano, Herman Mendoza, Hideki Nakajima
    Journal of the Australian Ceramic Society, 2020
  • Thermal stability and heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions uptake of the natural zeolites from the Philippines
    Eleanor Olegario, Christian Mark Pelicano, Jenichi Clairvaux Felizco, Herman Mendoza
    Materials Research Express, 2019
    Herein, we present the ability of natural zeolites from the Philippines to adsorb heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions for the first time. The primary component of the zeolite sample is clinoptilolite based on XRD and EDX results. Surface morphological analysis revealed that the zeolite has a rough surface with layered platelet-like morphologies. Most importantly, the zeolite sample showed higher adsorption efficiencies compared with commercially available γ-Al2O3 adsorbent. The zeolite sample also exhibited competitive maximum adsorption capacities of 125.2, 20.31, 14.65, 13.54 and 11.68 mg g−1 for Pb2+, As5+, Cu2+, Zn2+, and Ni2+ metal ions, respectively. It also displayed selectivity (Pb2+ > Cu2+ ∼ Ni2+ ∼ Zn2+) for cationic heavy metal ions based on their dehydration energies. Additionally, the adsorption mechanism for As5+ can be associated with the presence of considerable amount of Fe in the zeolite sample. Finally, the thermal analysis established that PNZ are highly stable at high temperatures. These results highlight the potential of our zeolite as a low-cost alternative for wastewater treatment and high-temperature catalyst applications.
  • Flexible TEG Using Amorphous InGaZnO Thin Film
    Mutsunori Uenuma, Kenta Umeda, Jenichi Felizco, Daiki Senaha, Yukiharu Uraoka
    Journal of Electronic Materials, 2019
  • Transparent Thin Film for Energy Harvesting
    M. Uenuma, J. C. Felizco, D. Senaha, Y. Uraoka
    Journal of Physics Conference Series, 2018
    Amorphous InGaZnO (a-InGaZnO) has already been proved to have good applications in thin-film transistor devices for display application. The a-InGaZnO is n-type semiconductor material and has enormous potential such as transparency, a low temperature fabrication process. Thus, the application of a-InGaZnO to flexible electronics and sensors has been studied. A low thermal conductivity and a low temperature process are merit for a thin film or a flexible thermoelectric module application. In this study, thermoelectric properties of a-IGZO thin film are evaluated. Transparent thermoelectric generator was demonstrated using a-InGaZnO and ITO electrodes.
  • Amorphous Thin Film for Thermoelectric Application
    K. Umeda, M. Uenuma, D. Senaha, J. C. Felizco, Y. Uraoka, H. Adachi
    Journal of Physics Conference Series, 2018
    Amorphous-InGaZnO is n-type semiconductor material and has enormous potential such as transparency, flexible application owing to a low temperature fabrication process. In this study, Effects of annealing on the thermoelectric properties of a-IGZO thin film are evaluated for a low temperature process. We also demonstrated flexible TEG using a-InGaZnO and PEN substrate.
  • Investigation of the thermal behavior of Philippine natural zeolites
    Eleanor Olegario-Sanchez, Jenichi Clairvaux Felizco, Francis Mulimbayan
    Aip Conference Proceedings, 2017
    This study aims to investigate the thermal behavior of natural zeolites from Mangatarem, Pangasinan, Philippines. Results obtained from the XRD pattern revealed that the sample is largely composed of mordenite, a Type I zeolite. In the chemical analysis, Si and Al are proven to be the primary components of the sample, which is typical in an aluminosilicate material. It also has a high Si/Al ratio, which suggests that the material is hydrophilic and thermally stable. The TGA analysis showed that dehydration processes dominate the sample’s reaction upon heating up to 1000 °C. The initial dehydration process led to a weight loss that is almost equivalent to the moisture content, as measured by chemical analysis. The succeeding weight loss is most probably due to the dehydration of tightly-bound water and cation dehydration. No structural collapse was observed even up to 1000 °C, which suggests that the material is ideal for industrial applications. Lastly, FTIR results revealed that heating the zeolitic tuff led to possible de-alumination.
  • Bimetal-catalyzed VLS growth of InGaZnO nanowire from amorphous thin film
    Am Fpd 2017 24th International Workshop on Active Matrix Flatpanel Displays and Devices Tft Technologies and Fpd Materials Proceedings, 2017
  • Growth of InGaZnO nanowires via a Mo/Au catalyst from amorphous thin film
    Jenichi Clairvaux Felizco, Mutsunori Uenuma, Daiki Senaha, Yasuaki Ishikawa, Yukiharu Uraoka
    Applied Physics Letters, 2017
  • Investigation of the structural properties of amorphous philippine bentonite clay and its potential use for topical applications
    Eleanor Olegario-Sanchez, Jenichi Clairvaux Felizco
    Key Engineering Materials, 2017
  • Formation of hierarchical cuo nanostructures on copper foil by chemical bath deposition for applications in superhydrophobic surfaces
    Matec Web of Conferences, 2016
  • Antibacterial properties of unique urchin-like CuO nanostructures by chemical bath deposition
    Jenichi Clairvaux Felizco, Francis Mulimbayan
    Materials Science Forum, 2016
  • Electrochemical study of Cu nanowire growth in aqueous solution
    Advanced Materials Structures and Mechanical Engineering Proceedings of the International Conference on Advanced Materials Structures and Mechanical Engineering, 2016
  • Formation of copper oxide nanostructures by solution-phase method for antibacterial application
    Advanced Materials Structures and Mechanical Engineering Proceedings of the International Conference on Advanced Materials Structures and Mechanical Engineering, 2016
  • Electrochemical investigation on the formation of Cu Nanowires by electroless deposition
    Jenichi Clairvaux E. Felizco, Mary Donnabelle L. Balela
    Matec Web of Conferences, 2015

RECENT SCHOLAR PUBLICATIONS

  • Improved Thermoelectric Power Factor of InGaZnO/SiO₂ Thin Film Transistor via Gate-Tunable Energy Filtering
    JC Felizco, M Uenuma, MN Fujii, Y Uraoka
    IEEE Electron Device Letters 42 (8), 1236-1239 , 2021
    2021
    Citations: 12
  • Improving thermoelectric properties of oxide semiconductor thin films by controlling carrier concentration and crystal structure
    JCE Felizco
    Nara Institute of Science and Technology , 2021
    2021
  • Effect of Gate Voltage on the Thermoelectric Properties of an InGaZnO/SiO2 Standard Thin Film Transistor
    JCE Felizco, M Uenuma, MN Fujii, Y Uraoka
    JSAP Annual Meetings Extended Abstracts The 68th JSAP Spring Meeting 2021 … , 2021
    2021
  • Optimizing the thermoelectric performance of InGaZnO thin films depending on crystallinity via hydrogen incorporation
    JC Felizco, M Uenuma, Y Ishikawa, Y Uraoka
    Applied Surface Science 527, 146791 , 2020
    2020
    Citations: 16
  • Enhanced Thermoelectric Transport and Stability in Atomic Layer Deposited-HfO 2 /ZnO and TiO 2 /ZnO-Sandwiched Multilayer Thin Films
    J Felizco, T Juntunen, M Uenuma, J Etula, C Tossi, Y Ishikawa, I Tittonen, ...
    ACS applied materials & interfaces 12 (43), 49210-49218 , 2020
    2020
    Citations: 29
  • Philippine natural zeolite surface engineered with CuO nanowires via a one-step thermal decomposition route
    E Olegario, JC Felizco, CM Pelicano, H Mendoza, H Nakajima
    Journal of the Australian Ceramic Society 56 (3), 803-809 , 2020
    2020
    Citations: 4
  • Thermoelectric Transport in Atomic Layer Deposited Hf and Ti-doped ZnO Thin Films
    JCE Felizco, T Juntunen, M Uenuma, J Etula, C Tossi, Y Ishikawa, ...
    JSAP Annual Meetings Extended Abstracts The 80th JSAP Autumn Meeting 2019 … , 2019
    2019
  • Thermal stability and heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions uptake of the natural zeolites from the Philippines
    E Olegario, CM Pelicano, JC Felizco, H Mendoza
    Materials Research Express , 2019
    2019
    Citations: 25
  • Flexible TEG Using Amorphous InGaZnO Thin Film: Uenuma, Umeda, Felizco, Senaha, and Uraoka
    M Uenuma, K Umeda, J Felizco, D Senaha, Y Uraoka
    Journal of Electronic Materials 48 (4), 1971-1975 , 2019
    2019
    Citations: 12
  • Amorphous thin film for thermoelectric application
    K Umeda, M Uenuma, D Senaha, JC Felizco, Y Uraoka, H Adachi
    Journal of Physics: Conference Series 1052 (1), 012016 , 2018
    2018
    Citations: 12
  • Transparent thin film for energy harvesting
    M Uenuma, JC Felizco, D Senaha, Y Uraoka
    Journal of Physics: Conference Series 1052 (1), 012011 , 2018
    2018
    Citations: 8
  • Investigation of the thermal behavior of Philippine natural zeolites
    E Olegario-Sanchez, JC Felizco, F Mulimbayan
    AIP Conference Proceedings 1901 (1), 070005 , 2017
    2017
    Citations: 17
  • Growth of InGaZnO nanowires via a Mo/Au catalyst from amorphous thin film
    JC Felizco, M Uenuma, D Senaha, Y Ishikawa, Y Uraoka
    Applied Physics Letters 111 (3) , 2017
    2017
    Citations: 10
  • Investigation of the structural properties of amorphous Philippine bentonite clay and its potential use for topical applications
    E Olegario-Sanchez, JC Felizco
    Key Engineering Materials 737, 401-406 , 2017
    2017
    Citations: 6
  • Bimetal-catalyzed VLS growth of InGaZnO nanowire from amorphous thin film
    JC Felizco, M Uenuma, D Senaha, Y Ishikawa, Y Uraoka
    2017 24th International Workshop on Active-Matrix Flatpanel Displays and … , 2017
    2017
    Citations: 1
  • Antibacterial Properties of Unique Urchin-Like CuO Nanostructures by Chemical Bath Deposition
    JC Felizco, F Mulimbayan
    Materials Science Forum 866, 166-170 , 2016
    2016
    Citations: 1
  • Electrochemical study of Cu nanowire growth in aqueous solution
    JC Felizco, MD Balela
    Advanced Materials, Structures and Mechanical Engineering: Proceedings of … , 2016
    2016
  • Formation of hierarchical CuO nanostructures on copper foil by chemical bath deposition for applications in superhydrophobic surfaces
    JC Felizco, E Magdaluyo Jr
    MATEC Web of conferences 43, 02002 , 2016
    2016
    Citations: 6
  • Formation of copper oxide nanostructures by solution-phase method for antibacterial application
    CM Pelicano, JC Felizco, MD Balela
    Advanced Materials, structures and Mechanical Engineering, Edit. Mosbeh … , 2015
    2015
    Citations: 2
  • SYNTHESIS AND CHARACTERIZATION OF FLOWER-LIKE CUO NANOSTRVCTVRES BY HYDROTHERMAL METHOD
    JCE Felizco, MR Tan, DL Mary Balela
    MERAL Portal , 2015
    2015

MOST CITED SCHOLAR PUBLICATIONS

  • Enhanced Thermoelectric Transport and Stability in Atomic Layer Deposited-HfO 2 /ZnO and TiO 2 /ZnO-Sandwiched Multilayer Thin Films
    J Felizco, T Juntunen, M Uenuma, J Etula, C Tossi, Y Ishikawa, I Tittonen, ...
    ACS applied materials & interfaces 12 (43), 49210-49218 , 2020
    2020
    Citations: 29
  • Thermal stability and heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions uptake of the natural zeolites from the Philippines
    E Olegario, CM Pelicano, JC Felizco, H Mendoza
    Materials Research Express , 2019
    2019
    Citations: 25
  • Investigation of the thermal behavior of Philippine natural zeolites
    E Olegario-Sanchez, JC Felizco, F Mulimbayan
    AIP Conference Proceedings 1901 (1), 070005 , 2017
    2017
    Citations: 17
  • Optimizing the thermoelectric performance of InGaZnO thin films depending on crystallinity via hydrogen incorporation
    JC Felizco, M Uenuma, Y Ishikawa, Y Uraoka
    Applied Surface Science 527, 146791 , 2020
    2020
    Citations: 16
  • Improved Thermoelectric Power Factor of InGaZnO/SiO₂ Thin Film Transistor via Gate-Tunable Energy Filtering
    JC Felizco, M Uenuma, MN Fujii, Y Uraoka
    IEEE Electron Device Letters 42 (8), 1236-1239 , 2021
    2021
    Citations: 12
  • Flexible TEG Using Amorphous InGaZnO Thin Film: Uenuma, Umeda, Felizco, Senaha, and Uraoka
    M Uenuma, K Umeda, J Felizco, D Senaha, Y Uraoka
    Journal of Electronic Materials 48 (4), 1971-1975 , 2019
    2019
    Citations: 12
  • Amorphous thin film for thermoelectric application
    K Umeda, M Uenuma, D Senaha, JC Felizco, Y Uraoka, H Adachi
    Journal of Physics: Conference Series 1052 (1), 012016 , 2018
    2018
    Citations: 12
  • Growth of InGaZnO nanowires via a Mo/Au catalyst from amorphous thin film
    JC Felizco, M Uenuma, D Senaha, Y Ishikawa, Y Uraoka
    Applied Physics Letters 111 (3) , 2017
    2017
    Citations: 10
  • Transparent thin film for energy harvesting
    M Uenuma, JC Felizco, D Senaha, Y Uraoka
    Journal of Physics: Conference Series 1052 (1), 012011 , 2018
    2018
    Citations: 8
  • Investigation of the structural properties of amorphous Philippine bentonite clay and its potential use for topical applications
    E Olegario-Sanchez, JC Felizco
    Key Engineering Materials 737, 401-406 , 2017
    2017
    Citations: 6
  • Formation of hierarchical CuO nanostructures on copper foil by chemical bath deposition for applications in superhydrophobic surfaces
    JC Felizco, E Magdaluyo Jr
    MATEC Web of conferences 43, 02002 , 2016
    2016
    Citations: 6
  • Philippine natural zeolite surface engineered with CuO nanowires via a one-step thermal decomposition route
    E Olegario, JC Felizco, CM Pelicano, H Mendoza, H Nakajima
    Journal of the Australian Ceramic Society 56 (3), 803-809 , 2020
    2020
    Citations: 4
  • Formation of copper oxide nanostructures by solution-phase method for antibacterial application
    CM Pelicano, JC Felizco, MD Balela
    Advanced Materials, structures and Mechanical Engineering, Edit. Mosbeh … , 2015
    2015
    Citations: 2
  • Bimetal-catalyzed VLS growth of InGaZnO nanowire from amorphous thin film
    JC Felizco, M Uenuma, D Senaha, Y Ishikawa, Y Uraoka
    2017 24th International Workshop on Active-Matrix Flatpanel Displays and … , 2017
    2017
    Citations: 1
  • Antibacterial Properties of Unique Urchin-Like CuO Nanostructures by Chemical Bath Deposition
    JC Felizco, F Mulimbayan
    Materials Science Forum 866, 166-170 , 2016
    2016
    Citations: 1
  • Electrochemical Investigation on the Formation of Cu Nanowires by Electroless Deposition
    JCE Felizco, MDL Balela
    MATEC Web of Conferences 27, 03005 , 2015
    2015
    Citations: 1
  • Improving thermoelectric properties of oxide semiconductor thin films by controlling carrier concentration and crystal structure
    JCE Felizco
    Nara Institute of Science and Technology , 2021
    2021
  • Effect of Gate Voltage on the Thermoelectric Properties of an InGaZnO/SiO2 Standard Thin Film Transistor
    JCE Felizco, M Uenuma, MN Fujii, Y Uraoka
    JSAP Annual Meetings Extended Abstracts The 68th JSAP Spring Meeting 2021 … , 2021
    2021
  • Thermoelectric Transport in Atomic Layer Deposited Hf and Ti-doped ZnO Thin Films
    JCE Felizco, T Juntunen, M Uenuma, J Etula, C Tossi, Y Ishikawa, ...
    JSAP Annual Meetings Extended Abstracts The 80th JSAP Autumn Meeting 2019 … , 2019
    2019
  • Electrochemical study of Cu nanowire growth in aqueous solution
    JC Felizco, MD Balela
    Advanced Materials, Structures and Mechanical Engineering: Proceedings of … , 2016
    2016