Research activity information

• Assessing the Economic Impact of Photovoltaic Generation on Electricity Prices and Consumer Economic Benefits under Feed-in Tariff System: Evidence from Japan

  Nobuhiro Fuke, Kazuhiko Ohashi

  In this study, the impact of photovoltaic generation on electricity prices and net consumer benefits is evaluated by accounting for the cost of a feed-in tariff system. A structural model is utilized to estimate electricity prices in a counterfactual scenario in which photovoltaics are not generated, and the results are compared with actual prices to evaluate the consumer economic benefits of photovoltaic adoption. To quantitatively estimate the consumer economic benefit, an empirical analysis is performed by using the data on electricity prices, electricity demand, and photovoltaic generation in Japan. The results indicate positive consumer economic benefits owing to the adoption of photovoltaics in recent years, particularly during the summer, which confirms the theoretical prediction that the net economic benefits from photovoltaics increase with increasing electricity demand and difference between photovoltaic generation and the demand. These results offer practical insight for implementing policies that balance renewable energy expansion with economic feasibility. By applying the insights on consumer economic benefits, policymakers could more accurately adjust the feed-in tariff to balance the cost of photovoltaic installation with the consumer burden.

  International Association for Energy Economics (IAEE), Jun. 2026, Economics of Energy and Environmental Policy, 15(3) (3), English

  [Refereed]

  Scientific journal


• Seasonal variation in the impact of solar power generation on electricity price level and variability

  Nobuhiro Fuke, Kazuhiko Ohashi

  Dec. 2025, Journal of Commodity Markets

  [Refereed]

  Scientific journal


• Photocharging Artifacts in Measurements of Electron Transfer in Quantum-Dot-Sensitized Mesoporous Titania Films

  Nikolay S. Makarov, Hunter McDaniel, Nobuhiro Fuke, Istvan Robel, Victor I. Klimov

  Jan. 2014, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 5(1) (1), 111 - 118, English

  [Refereed]

  Scientific journal


• An integrated approach to realizing high-performance liquid-junction quantum dot sensitized solar cells

  Hunter McDaniel, Nobuhiro Fuke, Nikolay S. Makarov, Jeffrey M. Pietryga, Victor I. Klimov

  Dec. 2013, NATURE COMMUNICATIONS, 4, English

  [Refereed]

  Scientific journal


• Engineered CuInSexS2-x Quantum Dots for Sensitized Solar Cells (vol 4, pg 355, 2013)

  Hunter McDaniel, Nobuhiro Fuke, Jeffrey M. Pietryga, Victor I. Klimov

  Apr. 2013, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 4(7) (7), 1059 - 1059, English

  [Refereed]


• Engineered CuInSexS2-x quantum dots for high efficiency sensitized solar cells

  Hunter McDaniel, Nobuhiro Fuke, Jeffrey M. Pietryga, Victor I. Klimov

  Apr. 2013, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 245, English


• Engineered CuInSexS2-x Quantum Dots for Sensitized Solar Cells

  Hunter McDaniel, Nobuhiro Fuke, Jeffrey M. Pietryga, Victor I. Klimov

  Feb. 2013, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 4(3) (3), 355 - 361, English

  [Refereed]

  Scientific journal


• Ultrafast Relaxation as a Possible Limiting Factor of Electron Injection Efficiency in Black Dye Sensitized Nanocrystalline TiO2 Films

  Ryuzi Katoh, Aidhiro Furube, Nobuhiro Fuke, Atsushi Fukui, Naold Koide

  Oct. 2012, JOURNAL OF PHYSICAL CHEMISTRY C, 116(42) (42), 22301 - 22306, English

  [Refereed]

  Scientific journal


• n-Butylamine capped CdSe quantum dot sensitized solar cells

  Nobuhiro Fuke, Paul Szymanski, Alexey Y. Koposov, Virginia W. Manner, Laura B. Hoch, Milan Sykora

  Aug. 2011, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 242, English

  [Refereed]


• Effect of organic passivation on photoinduced electron transfer across the quantum dot/TiO2 interface

  Paul Szymanski, Nobuhiro Fuke, Alexey Y. Koposov, Virginia W. Manner, Laura B. Hoch, Milan Sykora

  Corresponding, 2011, CHEMICAL COMMUNICATIONS, 47(22) (22), 6437 - 6439, English

  [Refereed]

  Scientific journal


• CdSe Quantum-Dot-Sensitized Solar Cell with similar to 100% Internal Quantum Efficiency

  Nobuhiro Fuke, Laura B. Hoch, Alexey Y. Koposov, Virginia W. Manner, Donald J. Werder, Atsushi Fukui, Naoki Koide, Hiroyuki Katayama, Milan Sykora

  Nov. 2010, ACS NANO, 4(11) (11), 6377 - 6386, English

  [Refereed]

  Scientific journal


• Effect of dye coverage on photo-induced electron injection efficiency in N719-sensitized nanocrystalline TiO2 films

  Ryuzi Katoh, Nobuhiro Fuke, Akihiro Furube, Naoki Koide

  Apr. 2010, CHEMICAL PHYSICS LETTERS, 489(4-6) (4-6), 202 - 206, English

  [Refereed]

  Scientific journal


• Effects of 4-tert-Butylpyridine and Li Ions on Photoinduced Electron Injection Efficiency in Black-Dye-Sensitized Nanocrystalline TiO2 Films

  Ryuzi Katoh, Motohiro Kasuya, Satoshi Kodate, Akihiro Furube, Nobuhiro Fuke, Naoki Koide

  Dec. 2009, JOURNAL OF PHYSICAL CHEMISTRY C, 113(48) (48), 20738 - 20744, English

  [Refereed]

  Scientific journal


• Dye-Sensitized Photovoltaic Module with Conversion Efficiency of 8.4%

  Atsushi Fukui, Nobuhiro Fuke, Ryoichi Komiya, Naoki Koide, Ryohsuke Yamanaka, Hiroyuki Katayama, Liyuan Han

  Aug. 2009, APPLIED PHYSICS EXPRESS, 2(8) (8), English

  [Refereed]

  Scientific journal


• Influence of TiO2/electrode interface on electron transport properties in back contact dye-sensitized solar cells

  Nobuhiro Fuke, Atsushi Fukui, Ashraful Islam, Ryoichi Komiya, Ryohsuke Yamanaka, Hiroshi Harima, Liyuan Han

  Lead, Jun. 2009, SOLAR ENERGY MATERIALS AND SOLAR CELLS, 93(6-7) (6-7), 720 - 724, English

  [Refereed]

  Scientific journal


• Quantitative study of solvent effects on electron injection efficiency for black-dye-sensitized nanocrystalline TiO2 films

  Ryuzi Katoh, Motohiro Kasuya, Akihiro Furube, Nobuhiro Fuke, Naoki Koide, Liyuan Han

  Jun. 2009, SOLAR ENERGY MATERIALS AND SOLAR CELLS, 93(6-7) (6-7), 698 - 703, English

  [Refereed]

  Scientific journal


• Recombination rate between dye cations and electrons in N719-sensitized nanocrystalline TiO2 films under substantially weak excitation conditions

  Ryuzi Katoh, Motohiro Kasuya, Akihiro Furube, Nobuhiro Fuke, Naoki Koide, Liyuan Han

  Mar. 2009, CHEMICAL PHYSICS LETTERS, 471(4-6) (4-6), 280 - 282, English

  [Refereed]

  Scientific journal


• Influence of TiCl4 treatment on back contact dye-sensitized solar cells sensitized with black dye

  Nobuhiro Fuke, Ryuzi Katoh, Ashraful Islam, Motohiro Kasuya, Akihiro Furube, Atsushi Fukui, Yasuo Chiba, Ryohichi Komiya, Ryohsuke Yamanaka, Liyuan Han, Hiroshi Harima

  Lead, 2009, ENERGY & ENVIRONMENTAL SCIENCE, 2(11) (11), 1205 - 1209, English

  [Refereed]

  Scientific journal


• Integrated dye-sensitized solar cell module with conversion efficiency of 8.2%

  Liyuan Han, Atsushi Fukui, Yasuo Chiba, Ashraful Islam, Ryoichi Komiya, Nobuhiro Fuke, Naoki Koide, Ryohsuke Yamanaka, Masafumi Shimizu

  Jan. 2009, APPLIED PHYSICS LETTERS, 94(1) (1), English

  [Refereed]

  Scientific journal


• Electron transport in back contact dye-sensitized solar cells

  Nobuhiro Fuke, Atsushi Fukui, Ashraful Islam, Ryoichi Komiya, Ryohsuke Yamanaka, Liyuan Han, Hiroshi Harima

  Lead, Sep. 2008, JOURNAL OF APPLIED PHYSICS, 104(6) (6), English

  [Refereed]

  Scientific journal


• New approach to low-cost dye-sensitized solar cells with back contact electrodes

  Nobuhiro Fuke, Atsushi Fukui, Ryohichi Komiya, Ashraful Islam, Yasuo Chiba, Masatoshi Yanagida, Ryohsuke Yamanaka, Liyuan Han

  Lead, Aug. 2008, CHEMISTRY OF MATERIALS, 20(15) (15), 4974 - 4979, English

  [Refereed]

  Scientific journal


• Back contact dye-sensitized solar cells

  Nobuhiro Fuke, Atsushi Fukui, Yasuo Chiba, Ryoichi Komiya, Ryosuke Yamanaka, Liyuan Han

  Lead, May 2007, JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 46(17-19) (17-19), L420 - L422, English

  [Refereed]

  Scientific journal


• Photoinduced electron injection in black dye sensitized nanocrystalline TiO2 films

  Ryuzi Katoh, Akihiro Furube, Motohiro Kasuya, Nobuhiro Fuke, Naoki Koide, Liyuan Han

  2007, JOURNAL OF MATERIALS CHEMISTRY, 17(30) (30), 3190 - 3196, English

  [Refereed]

  Scientific journal


• Synthesis and characterization of new efficient tricarboxyterpyridyl (beta-diketonato) ruthenium(II) sensitizers and their applications in dye-sensitized solar cells

  Ashraful Islam, Firoz A. Chowdhury, Yasuo Chiba, Ryoichi Komiya, Nobuhiro Fuke, Noriaki Ikeda, Koichi Nozaki, Liyuan Han

  Oct. 2006, CHEMISTRY OF MATERIALS, 18(22) (22), 5178 - 5185, English

  [Refereed]

  Scientific journal


• Improvement of efficiency of dye-sensitized solar cells by reduction of internal resistance

  Liyuan Han, Naoki Koide, Yasuo Chiba, Ashraful Islam, Ryoichi Komiya, Nobuhiro Fuke, Atsushi Fukui, Ryohsuke Yamanaka

  May 2005, Applied Physics Letters, 86(21) (21), 1 - 3

  [Refereed]

  Scientific journal


• Ruthenium(II) tricarboxyterpyridyl complex with a fluorine-substituted β-diketonato ligand for highly efficient dye-sensitized solar cells

  Ashraful Islam, Firoz A. Chowdhury, Yasuo Chiba, Ryoichi Komiya, Nobuhiro Fuke, Noriaki Ikeda, Liyuan Han

  Mar. 2005, Chemistry Letters, 34(3) (3), 344 - 345

  [Refereed]

  Scientific journal

• ビオンテック 〜異⾊の起業家が成功に導いた⼤学発ディープテック型スタートアップ〜

  福家信洋, 青井貴之, 忽那憲治

  Lead, Nov. 2024, 東京⼤学応⽤資本市場研究センター ディスカッションペーパー

  Report research institution


• TCOレス色素増感太陽電池の解析

  千葉恭男, 福井篤, 古宮良一, 福家信洋, 山中良亮

  2012, 応用物理学会学術講演会講演予稿集(CD-ROM), 73rd


• 酸化チタンナノ微粒子膜に吸着したブラック色素からの遅い電子注入ダイナミクス

  加藤隆二, 古部昭広, 福家信洋, 小出直城

  2010, 配位化合物の光化学討論会講演要旨集, 22nd


• 酸化チタンナノ微粒子膜に吸着した色素からの遅い電子注入ダイナミクスと効率

  加藤隆二, 古部昭広, 福家信洋, 小出直城

  2010, 分子科学討論会講演プログラム&要旨(Web), 4th


• 色素増感電極における電子注入過程のTBP添加効果

  加藤隆二, 古部昭広, 福家信洋, 小出直城

  2009, 応用物理学関係連合講演会講演予稿集, 56th(3) (3)


• 酸化チタンナノ結晶膜に吸着したブラック色素からの光誘起電子注入反応に及ぼす添加物効果

  加藤隆二, 古部昭広, 福家信洋, 小出直城, HAN Liyuan

  2009, 光化学討論会講演要旨集, 2009


• 色素増感太陽電池モジュールの高効率化

  福井篤, 福家信洋, 小出直城, 山中良亮, 片山博之

  2008, シャープ技報, (98) (98)


• ブラック色素から酸化チタンへの電子注入ダイナミクス

  加藤隆二, 古部昭広, 粕谷素洋, 福家信洋, 小出直城, HAN Liyuan

  2007, 電気化学会大会講演要旨集, 74th


• 吸着N3色素からTiO₂ナノ微粒子膜への光誘起電子注入効率に与えるTBPの影響

  粕谷素洋, 加藤隆二, 古部昭広, 福家信洋, 小出直城, 韓礼元

  2007, 固体・表面光化学討論会講演要旨集, 26th


• High efficiency of dye-sensitized solar cell and module

  Liyuan Han, Atsushi Fukui, Nobuhiro Fuke, Naoki Koide, Ryohsuke Yamanaka

  2006, CONFERENCE RECORD OF THE 2006 IEEE 4TH WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION, VOLS 1 AND 2, 179 - 182, English


• 薄膜多結晶Siの形成と評価

  川島隆, 福家信洋, 古田寛, 吉田哲久, 播磨弘, 平尾孝

  2001, 応用物理学会学術講演会講演予稿集, 62nd(2) (2)


• ELAポリシリコンの多結晶評価

  古田寛, 福家信洋, 識名紀之, 古田守, 鈴木達也, 吉田哲久, 播磨弘, 萩行正憲, 平尾孝

  2000, 応用物理学会学術講演会講演予稿集, 61st(2) (2)

• Economic value and distributional implications of policy measures on solar power curtailment in Kyushu, Japan

  Nobuhiro FUKE, Kazuhiko OHASHI

  2025年度日本太陽エネルギー学会研究発表会, Nov. 2025, Japanese

  Oral presentation


• 固定価格買取制度における太陽光発電の卸電力市場への影響と経済的便益の評価

  福家信洋, 大橋和彦

  2024年度 日本太陽エネルギー学会 研究発表会, Nov. 2024, Japanese

  Oral presentation


• Assessing the economic impact of photovoltaic generation on electricity prices and consumer economic benefits in Japan : An empirical study

  Nobuhiro Fuke, Kazuhiko Ohashi

  日本ファイナンス学会 第32回大会プログラム, Jun. 2024, Japanese

  Oral presentation


• Seasonality in the impact of solar power generation on the electricity price level and variability

  Kazuhiko Ohashi, Nobuhiro Fuke

  Asian finance association annual meeting, Jun. 2023


• Seasonality in the impact of solar power generation on the electricity price level and volatility

  Kazuhiko Ohashi, Nobuhiro Fuke

  2022 Econometric Society Asian Meeting, Aug. 2022


• Seasonality in the impact of solar power generation on the electricity price level and volatility

  大橋和彦, 福家信洋

  日本ファイナンス学会第29回大会, Jun. 2021, Japanese

  Oral presentation


• 太陽光発電導入が卸電力価格に与えた影響の分位点回帰分析- 九州における太陽光発電の電力価格への影響 –

  大橋和彦, 福家信洋

  日本経済学会2021年度春季大会, May 2021, Japanese

  Oral presentation


• n-Butylamine capped CdSe Quantum Dot Sensitized Solar Cell.

  Nobuhiro Fuke, Laura B. Hoch, Alexey Y Koposov, Virginia W. Manner, Milan Sykora

  ACS Fall meeting, English

  [Invited]

  Invited oral presentation


• 酸化チタンナノ結晶膜に吸着したブラック色素からの光誘起電子注入反応に及ぼす添加物効果

  加藤隆二, 古部昭広, 福家信洋, 小出直城, HAN Liyuan

  光化学討論会講演要旨集, 2009


• 色素増感電極における電子注入過程のTBP添加効果

  加藤隆二, 古部昭広, 福家信洋, 小出直城

  応用物理学関係連合講演会講演予稿集, 2009


• Back contact dye-sensitized solar cells

  N. Fuke, A. Fukui, Y. Chiba, R. Komiya, R. Yamanaka, L. Han

  The 17th International Photovoltaic Science and Engineering Conference, Dec. 2007, English

  Oral presentation


• 吸着N3色素からTiO₂ナノ微粒子膜への光誘起電子注入効率に与えるTBPの影響

  粕谷素洋, 加藤隆二, 古部昭広, 福家信洋, 小出直城, 韓礼元

  固体・表面光化学討論会講演要旨集, 2007


• ブラック色素から酸化チタンへの電子注入ダイナミクス

  加藤隆二, 古部昭広, 粕谷素洋, 福家信洋, 小出直城, HAN Liyuan

  電気化学会大会講演要旨集, 2007


• Improvement of efficiency of dye-sensitized solar cells by reduction of internal resistance

  Naoki Koide, Yasuo Chiba, Ashraful Islam, Ryoichi Komiya, Nobuhiro Fuke, Atsushi Fukui, Ryohsuke Yamanaka, Liyuan Han

  Conference Record of the IEEE Photovoltaic Specialists Conference, 2005


• Improvement of Efficiency of Dye-Sensitized Solar Cells by Analysis of Internal Resistance

  HAN Liyuan, 小出直城, 千葉恭男, ISLAM Ashraful, 古宮良一, 福家信洋, 福井篤, 山中良亮

  日本化学会講演予稿集, 2005


• イオン注入した薄膜多結晶シリコンの結晶性回復に及ぼす水素の効果

  福家信洋, 播磨弘, 古田寛, 吉田哲久, 古田守, 鈴木達也, 平尾孝

  応用物理学会学術講演会講演予稿集, 2000

• International Association for Energy Economics

  Nov. 2025 - Present


• 日本ベンチャー学会

  Apr. 2021 - Present


• 日本ファイナンス学会

  Apr. 2021 - Present

• 太陽光発電の電力価格とその変動性に与える影響

  福家 信洋

  日本学術振興会, 科学研究費助成事業, 基盤研究(C), 神戸大学, 01 Apr. 2024 - 31 Mar. 2027