Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics Chinese Academy of Sciences , Shanghai 201800, China.
ACS Appl Mater Interfaces. 2014 Jan 8;6(1):36-40. doi: 10.1021/am405137p. Epub 2013 Dec 18.
Hematite is a promising semiconductor candidate for PEC water splitting. However, hematite is far well short of the theoretical value of solar-to-fuel conversion efficiency because of the fast recombination of photogenerated carriers. To address this limitation, a facile template-free preparation of hematite photoanode with nanostructured ATO (antimony-doped tin oxide) conductive underlayer served as a scaffold to transport photogenerated electron was developed to decrease the recombination opportunities of the carriers. Furthermore, the constructed ATO scaffold could also increase the light absorption of hematite and the number of the carriers, resulting in better PEC performance of hematite.
赤铁矿是一种很有前途的 PEC 水分解半导体候选材料。然而，由于光生载流子的快速复合，赤铁矿的太阳能到燃料的转换效率远低于理论值。为了解决这一限制，开发了一种简便的无模板法制备赤铁矿光阳极，其具有纳米结构的 ATO（掺锑氧化锡）作为导电底层作为载体来输送光生电子，从而减少载流子的复合机会。此外，所构建的 ATO 支架还可以增加赤铁矿的光吸收和载流子数量，从而提高赤铁矿的 PEC 性能。
