1 0 0 0 OA Control of hot-carrier relaxation for realizing ideal quantum-dot intermediate-band solar cells.
- 著者
- Tex David M Kamiya Itaru Kanemitsu Yoshihiko
- 出版者
- Nature Publishing Group
- 雑誌
- Scientific reports (ISSN:20452322)
- 巻号頁・発行日
- vol.4, 2014-02-18
- 被引用文献数
- 26
量子ナノ構造を利用した太陽電池の光キャリアの振る舞いを解明 -高効率太陽電池の実現に前進-.京都大学プレスリリース.2014-2-18.
- 著者
- Matsumoto Takahiro Suzuki Jun-ichi Ohnuma Masato Kanemitsu Yoshihiko Masumoto Yasuaki
- 出版者
- American Physical Society
- 雑誌
- Physical review B (ISSN:10980121)
- 巻号頁・発行日
- vol.63, no.19, pp.195322, 2001-05
- 被引用文献数
- 62
The optical absorption spectrum in nanocrystalline silicon (n-Si) was determined from both light transmittance and reflectance measurements. We observed that n-Si has a phonon structure in the optical absorption spectrum. This structure originates from momentum-conserving TO phonon absorption and emission, and provides direct evidence that n-Si is an indirect-band-gap semiconductor with quantum size effects. By using small-angle x-ray scattering to measure the nanocrystal size distribution, we found that the band-gap widening varies as (1/L)1.6 with decreasing nanocrystal diameter L.
- 著者
- Yamada Yasuhiro Kanemitsu Yoshihiko
- 出版者
- American Institute of Physics
- 雑誌
- Applied Physics Letters (ISSN:00036951)
- 巻号頁・発行日
- vol.101, no.13, 2012-09-27
- 被引用文献数
- 232
二酸化チタン中の光キャリアの振る舞いを解明 -高効率太陽電池の実現に期待-. 京都大学プレスリリース. 2012-09-28.