Minority carrier dynamics in solar cell materials investigated by photo-assisted KFM

通过光辅助 KFM 研究太阳能电池材料中的少数载流子动力学

• 批准号: 21360143
• 负责人: TAKAHASHI Takuji
• 金额: $ 11.56万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360143/
• 关键词: ケルビンプローブフォース顕微鏡; 太陽電池材料; 少数キャリア; 再結合プロセス; AFM 光熱分光計測法; 非発光再結合; ケルビン・プローブ・フォース顕微鏡; AFM光熱分光計測法

We have applied the photo-assisted KFM and the AFM photo-thermal spectroscopy, which we have originally developed, as well as the scanning tunneling spectroscopy on multi- and micro-crystalline solar cell materials in order to investigate their various properties very locally. As a result, we successfully found some specific features of the band profile around the grain boundary, the minority carrier dynamics, such as diffusion ength, lifetime and mobility, with their spatial distribution, and the recombination process of photo-excited carriers.

我们已经应用了光辅助KFM和AFM光热光谱，这是我们最初开发的，以及多和微晶太阳能电池材料的扫描隧道光谱，以调查他们的各种性质非常本地。结果，我们成功地发现了晶界附近的能带分布，少数载流子动力学，如扩散长度，寿命和迁移率，其空间分布，以及光激发载流子的复合过程的一些特定的功能。

项目成果

Photovoltage Decay Inves- tigated by Photoassisted Kelvin ProbeForce Microscopy on Cu(In,Ga)Se2 SolarCells

利用光辅助 Kelvin ProbeForce 显微镜研究 Cu(In,Ga)Se2 太阳能电池上的光电压衰减

• 发表时间: 2011
• 作者: Y. Nakajima;T. Minemoto;and T. Takahashi
• 通讯作者: and T. Takahashi

Photothermal Signals on Multicrystalline Silicon Solar Cells Measured by Dual Sampling Method in Atomic Force Microscopy

原子力显微镜双采样法测量多晶硅太阳能电池的光热信号

• 发表时间: 2011
• 作者: Kenji Hara;Takuji Takahashi
• 通讯作者: Takuji Takahashi

Local Characterization of Multicrystalline Sili con Solar Cells through Photothermal and Potential Measurements by Scanning Probe Microscopy

通过扫描探针显微镜的光热和电势测量来表征多晶硅太阳能电池

• 发表时间: 2011
• 作者: K. Shinbo;S. Onozuka;R. Hoshino;Y. Mizuno;Y. Ohdaira;A. Baba;K. Kat o and F. Kaneko;K. Hara and T. Takahashi
• 通讯作者: K. Hara and T. Takahashi

Local Photothermal Measurements by AFM around Grain Boundary in Multicrystalline Silicon Material

多晶硅材料晶界周围 AFM 的局部光热测量

• 发表时间: 2010
• 作者: 中村立;藤村紀文;K. Hara and T. Takahashi
• 通讯作者: K. Hara and T. Takahashi

Nonradia- tive Recombination Property around Grain Boundary in Multicrystalline Silicon Mate- rials Studied by Photothermal Measure-ments in AFM

利用AFM光热测量研究多晶硅材料晶界周围的非辐射复合特性

• 发表时间: 2009
• 作者: K. Hara and T. Takahashi