著者

荒川 裕則

出版者

一般社団法人 水素エネルギー協会

雑誌

水素エネルギーシステム (ISSN:13416995)

巻号頁・発行日

vol.24, no.1, pp.81-88, 1999 (Released:2022-07-21)

---

Hydrogen production from water using inexhaustible solar light, which is considered to be an artificial photosynthesis reaction, is one of dream technologies for human beings. Here, recent progress in photocatalytic water splitting was introduced. First, it was shown that Na2CO3 addition method was very useful to produce H2 and O2 from water stoichiometrically using simple semiconductor photocatalysts such as Pt/TiO2. Using this method, solar hydrogen production was demonstrated for the first time. Then, a two-step water splitting system, which was similar to Z-scheme of photo-synthesis, was newly proposed in order to utilize visible light.

著者

片野 大地 小澤 弘宜 荒川 裕則

出版者

一般社団法人 日本エネルギー学会

雑誌

日本エネルギー学会大会講演要旨集 第22回日本エネルギー学会大会 (ISSN:24238317)

巻号頁・発行日

pp.196-197, 2013-07-29 (Released:2017-03-22)

---

In order to improve the solar cell efficiency of highly durable glass-substrate dye sensitized solar cll (DSC) using 3-methoxypropionitrile (MPN) electrolyte solvent, a systematic study on the optimization of TiO_2 photoelectrode was conducted. By the fine tuning of light harvesting efficiency (LHE) and film thickness of TiO_2 photoelectrode to the optimized structure, solar cell efficiency improved from 7.2% up to 8.5%. Moreover, the co-sensitization of black dye with organic dye, D131, was applied to MPN electrolyte system. Finally, efficiency improved up to 9.0%, which is one of the highest efficiencies in MPN-based DSC system.

著者

荒川 裕則

出版者

無機マテリアル学会

雑誌

Journal of the Society of Inorganic Materials, Japan (ISSN:21854378)

巻号頁・発行日

vol.11, no.313, pp.481-488, 2004-11-01 (Released:2011-03-07)

参考文献数

9