1. M. Akasaka, H. Kurokawa, T. Kobayashi*, "ZnMgO/Se Thin Film Photovoltaic Devices with Graphene/Silver Nanowire Stacked Flexible Transparent Conducting Electrodes", Physica Status Solidi A: Applications and Materials Science, accepted.
https://onlinelibrary.wiley.com/doi/epdf/10.1002/pssa.70402
2. Alex Jimenez Arguijo, Myeongok Kim, Sergio Giraldo, Alejandro Navarro Güell, Kunal Tiwari, Outman Khouja, Yuancai Gong, Taizo Kobayashi, Zacharie Jehl Li Kao, "Guidelines for the design of efficient and injection-resilient thin film photovoltaic converters for indoor applications", Journal of Physics: Energy, Vol. 7, No. 4, (2025) 11 Pages https://iopscience.iop.org/article/10.1088/2515-7655/adf355/pdf
3. 五反田 耀, 信野 永光, イエル ザッカリー, 小林 大造*, "ライトソーキングによる不揮発的活性化を応用したZnMgO/Se人工視覚シナプス", 電気学会論文誌E, Vol.145, (2025) 6 Pages 掲載決定
4. 疋田 航大, 緒方 亮太, イエル・ザッカリー, 小林 大造*, "Te層精密蒸着によるSe薄膜光発電デバイスの高効率化", 電気学会論文誌E, Vol.145, (2025) 掲載決定
5. A. Tsuji, T. Kobayashi and J. Murata*, "Soft Copper Nanoimprinting via Solid-State Electrochemical Etching for Flexible Optoelectronics", ACS Applied Materials & Interfaces
, (2025), 11Pages https://doi.org/10.1021/acsami.4c207326. M. Akasaka, M. Noguchi and T. Kobayashi*, "Silver-Nanowire/Graphene Stacked Transparent Electrodes and Its Application to Flexible Thin Film Photovoltaic Device", Electrical Engineering in Japan, e23504 (6Pages) (2025) https://doi.org/10.1002/eej.23504
7. T. Kobayashi*, T. Miyamoto, R. Ogata, Z. Jehl Li Kao, “TiO₂/Se heterojunction photovoltaic device made from Se/Te/Se stacked precursor”, Solar Energy Materials and Solar Cells, Vol.277, 113120 (9Pages), (2024) doi.org/10.1016/j.solmat.2024.113120
8. K. Takatsuki, R. Takahashi and T. Kobayashi*, "Water-splitting Reactor Comprising a Combination of TiO₂-based Photoelectrochemical Cell and Serially Connected TiO₂/Se Heterojunction Photovoltaic Devices", Sensors and Materials,Vol.36, No.8(3), pp. 3367-3380 (2024)
9. 赤阪美保, 野口雅彦, 小林大造*, "銀ナノワイヤ/グラフェンを積層した透明電極の作製とフレキシブル光発電デバイスへの応用", 電気学会論文誌E, Vol.144(7), pp. 158-163(2024)
10. 田中 悠太, 嶋倉 啓太, 伊藤 生龍, 小林 大造*, ”溶液法およびスパッタ法により形成したTiO2/BaTiO3積層膜の圧電光触媒効果”, 電気学会論文誌E, Vol.144(7), pp. 189-194 (2024)
11. 伊藤生龍, 嶋倉啓太, 田中悠太, 山根大輔, 小林大造*, "BaTiO3/TiO2構造を用いた振動による光触媒反応の促進", 電気学会論文誌E, Vol. 143(8), pp.231-235(2023)
12.T. Kawagishi, Y. Adachi and T. Kobayashi*, "Photovoltaic performances of TiO2/Se heterojunction devices with different crystallographic structures of sputter-deposited TiO2 thin films", Materials Chemistry and Physics, Vol. 297, 127371 (9 Pages) (2023).
13.Y. Adachi and T. Kobayashi*, "Formation of micro-patterned Ga2O3/Se heterojunction and its application to highly sensitive avalanche photodiode", Physica Status Solidi A: Applications and Materials Science ,Vol.220, Issue 5, 22006 (8 Pages) (2023). Selected as Front Cover!
14. K. Shimakura, S. Saeki , Y. Segawa, T. Kobayashi*, "Enhancement of photocatalytic degradation by combination of light illumination and bias voltages toward anti-virus coating applications", Electron Comm Jpn. 2022;e12381. (https://doi.org/10.1002/ecj.12381)
15. J. Fujimura, Y. Adachi, T. Takahashi and T. Kobayashi*, "Impact of piezo-phototronic effect on ZnMgO/Se heterojunction photovoltaic devices" Nano Energy, Vol. 99, 107385 (2022)
16. 川岸稜也，足立悠輔，小林大造*，” TiO2/Se光電池の高効率化のための ヘテロ接合特性制御", 電気学会論文誌E, Vol. 142, No. 8, pp.176-181 (2022)
17. 嶋倉 啓太, 佐伯 翔, 瀬川 悠太, 小林 大造*, "光照射とバイアス電圧の同時印加による酸化チタン系光触媒の有機物分解効果の促進", 電気学会論文誌E, Vol. 142, No. 8, pp.182-188 (2022)
18. 渡邊 朋也, 道垣内 公介, 足立 悠輔, 小林 大造*, "マイクロ毛細管チャネルを用いた平滑表面を有する カラーフィルタパターン作製プロセス", 電気学会論文誌E, Vol. 142, No.9, pp.235-240(2022)
19. 瀬川悠太，小林大造*，”分極制御によるTiO2薄膜の光応答型濡れ性変化の促進 ”， 電気学会論文誌E 141 (7) , 141巻 7号、 pp.222-227, (2021)
20. T. Kobayashi* and S. Konishi, "Sputter-deposited pH-sensitive TiO2 electrodes for lactate sensing applications", 電気学会論文誌E 141 (1) , pp. 21-25, (2021)
21. 足立悠輔，小林大造*，” 結晶Se薄膜マイクロフォトダイオードを用いたフィルム型フレキシブル光センサの作製とその応用”， 電気学会論文誌E 140 (12) , pp.363-368, (2020)
22. T. Kobayashi* and S. Konishi, "Acceleration of wettability switching on TiO2 thin films under ultraviolet irradiation and direct current bias voltage", Surface and Coatings Technology, Vol. 363, pp. 80-86, (2019)
23. 足立悠輔，小林大造*，”結晶セレン薄膜を用いたマイクロ可視光センサのためのパターニング技術の開発”，電気学会論文誌E, Vol. 139, Issue 4, pp. 75-80, （2019）
24. T. Kobayashi*, H. Maeda, S. Konishi,: "Photoresponsive wettability switching of TiO2-coated micro pillar arrays with different geometries of overhang roofs", IET Micro and Nano Letters, 12(8), 540-545, (2017)
25. H. Maeda, T. Kobayashi*, S. Konishi,: "Patterning of wettability using the photocatalytic decomposition of hydrophobic self-assembled monolayer on the TiO2 pattern", Japanese Journal of Applied Physics, 56/ 6S1, 06GN09 (4Pages), (2017)
26. S. Konishi, T. Kobayashi, Y. Muramatsu,: “Integration of optical waveguide on pneumatic balloon actuator for flexible scanner in endoscopic imaging diagnosis applications”, Advanced Robotics, Vol. 30, Issue 15, pp.1004-1013 (2016)
27. T. Kobayashi*, H. Maeda, S. Konishi,: “Surface fluorination of rutile-TiO2 thin films deposited by reactive sputtering for accelerating response of optically driven capillary effect”, Jpn. J. Appl. Phys., Vol. 55/6S1, 06GP03 (4Pages) (2016)
28. T. Kobayashi, Z. Jehl, T. Kato, H. Sugimoto and T. Nakada: “A comparative study of Cd- and Zn-compound buffer layers on Cu(In1-x,Gax)(Sy,Se1-y)2 thin film solar cells”, Progress in Photovoltaics: Reseach and Applications, Vol. 24(3), pp. 389-396(2015) (DOI: 10.1002/pip.2695)
29. T. Kobayashi*, Z. Jehl, and T. Nakada: “Temperature dependent current-voltage and admittance spectroscopy on heat-light soaking effects of Cu(In,Ga)Se2 solar cells with ALD-Zn(O,S) and CBD-ZnS(O,OH) buffer layers”, Solar Energy Materials and Solar Cells, Vol. 143, (2015), pp.159-167.
30. T. Kobayashi* and S. Konishi: “TiO2 patterns with wide photo-induced wettability change by combination of reactive sputtering process and surface modification in a microfluidic channel”, Journal of Micromechanics and Microengineering, Vol. 25 (11), (2015), 115014.
31. S. Konishi, C. Nakagami, T. Kobayashi*, W. Tonomura, and Y. Kaizuma: “ Lift-off process with bi-layer photoresist patterns for conformal-coated superhydrophilic pulsed plasma chemical vapor deposition-SiOx on SiCx for lab-on-a-chip applications”, Japanese Journal of Applied Physics, Vol. 54(4), (2015), pp. 047201(5Pages).
32. T. Kobayashi*, H. Yamaguchi, Z. Jehl, H. Sugimoto, T. Kato, H. Hakuma, and T. Nakada: “Impacts of surface sulfurization on Cu(In1-x,Gax)Se2 thin-film solar cells”, Progress in Photovoltaics: Research and Applications, Vol. 23(10), (2015), pp. 1367-1374.
33. Z. Jehl*, T. Kobayashi and T. Nakada: “Modeling of the surface sulfurization of CIGSe-based solar cells”, Solar Energy, Vol. 110, (2014), pp. 50-55.
34. T. Kobayashi* and T. Nakada: “Effects of post-deposition treatments on transparent conducting ZnO:B thin films grown by MOCVD”, Japanese Journal of Applied Physics, Vol. 53(5), 05FA03(5Pages).
35. T. Kobayashi*, T. Kumazawa, Z. Jehl and T. Nakada: “Post-treatment effects on ZnS(O,OH)/Cu(In,Ga)Se2 solar cells deposited using thioacetamide-ammonia based solution”, Solar Energy Materials and Solar Cells, Vol. 123, (2014), pp. 197-202.
36. T. Kobayashi, H. Yamaguchi and T. Nakada: “Effects of combined heat and light-soaking on device performance of Cu(In,Ga)Se2 solar cells with ZnS(O,OH) buffer layer”, Progress in Photovoltaics: Research and Applications, Vol. 22, Issue 1 (2014) , pp. 115-121.
37. S. Kim, S. Kasashima, P. Sichanugrist, T. Kobayashi, T. Nakada, M. Konagai: ” Development of thin-film solar cells using solar spectrum splitting technique”, Solar Energy Materials and Solar Cells, Vol. 119, (2013), pp. 214-218.
38. T. Kobayashi*, T. Nakada: ”Efficient Cu(In,Ga)Se2 thin film solar cells with reduced thickness of ZnS(O,OH) buffer layer”, Solar Energy Materials and Solar Cells, Vol. 117, (2013), pp. 526-530.
39. T. Kobayashi*, T. Kumazawa, Z. Jehl, T. Nakada: ”Cu(In,Ga)Se2 thin film solar cells with a combined ALD-Zn(O,S) buffer and MOCVD-ZnO:B window layers”, Solar Energy Materials and Solar Cells, Vol. 119, (2013), pp. 129-133.
40. Z. Jehl, T. Kobayashi, T. Nakada: ”CuIn(Se1-x,Tex)2 solar cells with tunable narrow-bandgap for bottom cell application in multijunction photovoltaic devices”, Solar Energy Materials and Solar Cells, Vol. 119, (2013), pp. 144-148.
41. T. Kobayashi*, K. Yamauchi and T. Nakada: “Comparison of cell performance of ZnS(O,OH)/CIGS solar cells with UV-assisted MOCVD-ZnO:B and sputter-deposited ZnO:Al window layers“, IEEE Journal of Photovoltaics, Vol. 3, No. 3, (2013), pp. 1079-1083.
42. T. Nakada, T. Kobayashi, T. Kumazawa, and H. Yamaguchi: “ Impacts of post-treatments on cell performance of CIGS solar cells with Zn-compound buffer layers “, IEEE Journal of Photovoltaics, Vol. 3, No. 1, (2013), pp. 461 - 466.
43. T. Kobayashi*, A. Akazawa, Y. Mori, Y. Furuno and S. Konishi: “ Process for lift-off transfer of pyrolyzed polymer onto low thermal tolerance substrate”, Sensors and Actuators B: Chemical, Vol. 180, (2013), pp. 8 - 13.
44. H. Nakakoba, Y. Yatsushiro, T. Mise, T. Kobayashi, and T. Nakada: “Effects of Bi incorporation on Cu(In1-x,Gax)Se2 thin films and solar cells”, Japanese Journal of Applied Physics vol. 51, no. 10, (2012), 10NC24 (3Pages).
45. Y. Yatsushiro, H. Nakakoba, T. Mise, T. Kobayashi and T. Nakada: “Effects of antimony doping on Cu(In,Ga)Se2 thin films and solar cells” Japanese Journal of Applied Physics vol. 51, no. 10, (2012), 10NC25(4Pages).
46. K. Nakashima, T. Kumazawa, T. Kobayashi, T. Mise, and T. Nakada: “Widegap Cu(In,Ga)Se2 solar cells with Zn(O,S) buffer layers prepared by atomic layer deposition”, Japanese Journal of Applied Physics vol. 51, no. 10, (2012), 10NC15(4Pages).
47. T. Kobayashi*, K. Yamauchi, T. Mise and T. Nakada: “Transparent conducting ZnO:B thin films grown by ultraviolet light assisted metal organic chemical vapor deposition using triethylboron for Cu(In,Ga)Se2 solar cells”, Japanese Journal of Applied Physics vol. 51, no. 10, (2012), 10NC09 (4Pages).
48. T. Kobayashi* and S. Konishi: “Microfluidic chip with serially connected filters for improvement of collection efficiency in blood plasma separation”, Sensors and Actuators B: Chemical, Vol. 161(1), (2012), pp. 1176 - 1183.
49. T. Kobayashi*, K. Shimizu, S. Konishi: “Investigation of Denaturation of hydrophobic perfluoropolymer surfaces and their applications for micropatterns on biochip”, IEEE/ASME Journal of Micoelectromechanical Systems, Vol. 21(1), (2012), pp. 62 - 67.
50. T. Kobayashi*, K. Shimizu, Y. Kaizuma and S. Konishi: ” Formation of superhydrophobic/superhydrophilic patterns by combination of nanostructure-imprinted perfluoropolymer and nanostructured silicon oxide for biological droplet generation”, Applied Physics Letters, Vol. 98, (2011), pp. 123706 (3Pages).
51. T. Kobayashi*, K. Shimizu, Y. Kaizuma and S. Konishi: “Novel combination of hydrophilic/hydrophobic surface for large wettability difference and its application to liquid manipulation”, Lab on a Chip, Vol. 11, (2011), pp. 639 - 644.
52. T. Kobayashi*, T. Funamoto, M. Hosaka and S. Konishi: “Centrifugal separation device using two-layer laminar flow in micro channels toward high-throughput and continuous blood cell/plasma separation”, Japanese Journal of Applied Physics, Vol. 49, (2010), pp. 077001-1 - 077001-5.
53. 小林大造*、加藤大貴、古賀裕之、森本賢一、福田允、木下良治、吉田博、小西聡:“標本の特性変化に適応可能な直列多段型血球分離デバイス”、電気学会論文誌E、Vol. 129、No. 11、(2009), pp. 380 - 386.
54. T. Kobayashi* and S. Konishi: “Surface adhesion control of patterned perfluoro polymer for release technology in the mTAS fabrication process”, IEEJ transactions on sensors and micromachines, Vol. 129, No. 7, (2009), pp. 205 - 209.
55. S. Konishi, T. Kobayashi, H. Maeda, S. Asajima and M. Makikawa: “Cuff actuator for adaptive holding condition around nerves”, Sensors and ActuatorsB: Chemical, Vol. 83, (2002), pp. 60 - 66.
1. A. Torrens , I. Caño, O. Segura-Blanch, H. Nakano, S. Kitagawa, Z. Jehl, E. Saucedo, T. Kobayashi, M. Placidi, "The effect of difused light onto selenium solar cells for indoor photovoltaics", Indoor Photovoltaics Conference 2026, June 25-26, 2026, Poster presentation
2. Hiroya Kurokawa, Kosuke Nomura, Saiki Kitagawa, Taizo Kobayashi, "ZnMgO/Se Piezophototronic Device with Metal Grid Patterns/Graphene Stacked Flexible Transparent Conducting Electrodes", MRS Spring Meeting & Exhibit 2026, Apr 27, 2026, Oral presentation
3. Yoshiki Kishima, Yushin Sawada, Kunal Jogendra Tiwari, Saiki Kitagawa and Taizo Kobayashi, "Fabrication and Characterization of MXene Electrodes for Se thin film photovoltaic devices", MRS Spring Meeting & Exhibit 2026, Apr 29, 2026, Poster presentation
4. Zacharie Jehl, Sergio Giraldo, Myeongok Kim, Taizo Kobayashi, "Zero-energy and wavelength tunable neuromorphic visual computing with photocurrent-based memory in ZnMgO/Se synapses", Neuronics Conference 2025 (Neuronics25), June 17, 2025
5. Zacharie Jehl Li-Kao, Sergio Giraldo, Kunal Tiwari, Taizo Kobayashi, Edgardo Saucedo, "Zero-Energy Neuromorphic Visual Computing with Photocurrent-Based Memory in ZnMgO/Se Synapses", 2025 MRS Spring Meeting & Exhibit, Apr 9, 2025
6. R. Ogata, S. Hayakawa, J. Murata and T. Kobayashi, "Se thin film based photovoltaic devices with low temperature electrochemical oxidized TiO2 window layer", 37th International Microprocesses and Nanotechnology Conference (MNC 2024), 15. Nov. 2024
7. M. Akasaka, H. Kurokawa and T. Kobayashi, "Graphene / Silver Nanowire Stacked Flexible Transparent Conducting Electrode for Flexible Photovoltaic Applications ", 37th International Microprocesses and Nanotechnology Conference (MNC 2024), 15. Nov. 2024
8. C. Tiange, R. Ogata and T. Kobayashi, "Piezophototronics effect of n-ZnMgO/p-Se hetero junction and its application to strain sensing", 37th International Microprocesses and Nanotechnology Conference (MNC 2024), 15. Nov. 2024
9. Z. Jehl Li-Kao, K. Tiwari, S. Giraldo, M. Placidi, A. G. Medaille, A. Basak, E. Saucedo, T. Kobayashi "Investigating The Interplay of Piezoelectricity and Synaptic Plasticity in Se-Based Photodiodes for Optically Controlled Memristors on Flexible Substrates", 2024 MRS Spring Meeting, Seattle(USA), Apr 24, (2024)
10. T. Kobayashi, " Interface Engineering of Chalcogen and Chalcogenide Heterojunction Photovoltaic Devices and Their Applications", APCOT2022(Asia-Pacific Conference of Transducers and Micro-Nano Technology 2022)", (2022. 5), Invited talk
11. T. Kobayashi, " Interface Engineering of Chalcogen and Chalcogenide Thin Films for Photovoltaic Applications", International Conference on Electronics, Instrumentation and Devices (ICEID) 2021 (2021. 6), Keynote talk
12. T. Kobayashi “Se/Ga₂O3 Thin Film Micro-photodiodes for Flexible Color Sensor", Virtual IEEE-NEMS2020 (2020. 9), Invited talk
13. Y. Adachi and T. Kobayashi “Tiny, Light-weight and Flexible Color Sensor by Combination of Se/Ga2O3 Photodiode Array and Fluidic-Printed RGB Filters", Proc. of Transducers 2019 (2019. 6)