采用（001）取向锐钛矿型TiO纳米片光阳极提高CdS/CdSe量子点敏化太阳能电池的性能

Performance Enhancement of CdS/CdSe Quantum Dot-Sensitized Solar Cells with (001)-Oriented Anatase TiO Nanosheets Photoanode.

作者信息

Huang Kuo-Yen, Luo Yi-Hsiang, Cheng Hsin-Ming, Tang Jau, Huang Jin-Hua

机构信息

Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan.

Research Center for Applied Sciences (RCAS), Academia Sinica, Taipei, 115, Taiwan.

出版信息

Nanoscale Res Lett. 2019 Jan 11;14(1):18. doi: 10.1186/s11671-018-2842-5.

CdS/CdSe quantum dot-sensitized solar cells (QDSSCs) were fabricated on two types of TiO photoanodes, namely nanosheets (NSs) and nanoparticles. The TiO NSs with high (001)-exposed facets were prepared via a hydrothermal method, while the TiO nanoparticles used the commercial Degussa P-25. It was found that the pore size, specific surface area, porosity, and electron transport properties of TiO NSs were generally superior to those of P-25. As a result, the TiO NS-based CdS/CdSe QDSSC has exhibited a power conversion efficiency of 4.42%, which corresponds to a 54% improvement in comparison with the P-25-based reference cell. This study provides an effective photoanode design using nanostructure approach to improve the performance of TiO-based QDSSCs.

硫化镉/硒化镉量子点敏化太阳能电池（QDSSCs）是在两种类型的二氧化钛光阳极上制备的，即纳米片（NSs）和纳米颗粒。具有高（001）暴露面的二氧化钛纳米片是通过水热法制备的，而二氧化钛纳米颗粒则使用商业德固赛P-25。研究发现，二氧化钛纳米片的孔径、比表面积、孔隙率和电子传输性能通常优于P-25。因此，基于二氧化钛纳米片的硫化镉/硒化镉量子点敏化太阳能电池的功率转换效率达到了4.42%，与基于P-25的参比电池相比提高了54%。本研究提供了一种有效的光阳极设计方法，通过纳米结构方法来提高基于二氧化钛的量子点敏化太阳能电池的性能。