[1]黄辉庭、李朝升、邹志刚.探索优化光电极中载流子传输的策略[J].中国材料进展,2017,(1):016-20.[doi:10.7502/j.issn.1674-3962.2017.01.05]
 HUANG Huiting,LI Zhaosheng,ZOU Zhigang.Development of approaches to improve the charge transfer of photoelectrodes for solar water splitting[J].MATERIALS CHINA,2017,(1):016-20.[doi:10.7502/j.issn.1674-3962.2017.01.05]
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探索优化光电极中载流子传输的策略()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第1期
页码:
016-20
栏目:
前沿综述
出版日期:
2017-01-31

文章信息/Info

Title:
Development of approaches to improve the charge transfer of photoelectrodes for solar water splitting
作者:
黄辉庭、李朝升、邹志刚
南京大学
Author(s):
HUANG Huiting LI Zhaosheng ZOU Zhigang
Nanjing University
关键词:
光电极太阳能水分解载流子传输
Keywords:
photoelectrodes solar energy water splitting solar-to-hydrogen efficiency charge transfer
DOI:
10.7502/j.issn.1674-3962.2017.01.05
文献标志码:
A
摘要:
将太阳能转化成氢能来发展氢能源经济是人类社会可持续发展的必由之路。光电化学分解水制氢是太阳能-氢能转换中具有重要应用前景的技术。经过近五十年的发展,光电化学分解水制氢技术遇到了瓶颈,主要是缺乏高效稳定的光电极。近年来,通过沉积TiOx保护层的策略,部分光电极的稳定性得到了显著提升,因此,提高光电极的太阳能-氢能转换效率成为一项更为重要的任务。其中,改善光电极载流子传输能够有效地提高太阳能-氢能转换效率。本文着重讨论了几种改善光电极中载流子传输的策略,包括制备有利于载流子扩散和迁移的纳米结构;通过掺杂提高材料的导电性;通过制备工艺的优化减少阻碍载流子传输的缺陷;构建半导体结;使用与材料多子输运匹配的导电衬底或引入少子阻隔层等。
Abstract:
The sustainable development of society will depend on the hydrogen economic, which should be based on the conversion of solar energy. Photoelectrochemical water splitting has become one of the most promising solar-to-hydrogen convert techniques. After near five-decade research, this technique has been in dilemma, mainly resulting from the lack of highly efficient and stable photoelectrodes. In recent years, the stability of photoelectrodes under operation seems to be resolve by the introduction of robust TiOx protective layer, which means that ways to enhancing the solar-to-hydrogen efficiency of photoelectrodes should be developed preferentially towards the realization of solar water splitting. Improvement of the charge transfer of the photoelectrodes would lead to the enhancement of the solar-to-hydrogen efficiency. Here, several main strategies for the optimization of charge transfer has been summarized. It is by the fabrication of micro/nano structure facilitating charge diffuse and drift, the introduction of dopants increasing the conductivity, the optimization of synthesis procedures minimizing the charge recombination defects, the construction of semiconductor junctions and the best choice of suitable substrates for the majority charge transport or the deposition of under layers that the photoelectrochemical performance of the given photoelectrode would be boosted.
更新日期/Last Update: 2016-12-26