Combined Applications of Photocurrent Spectroscopy, Photoluminescence Spectroscopy and UV-Vis Spectroscopy for Nano-Semiconductor Based Photoelectric Devices

Authors

Si-Da Bian, Department of Chemistry, College of Chemical Engineering, State Key Laboratory of Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, Fujian, China;
Jian-Zhang Zhou, Department of Chemistry, College of Chemical Engineering, State Key Laboratory of Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, Fujian, China;Follow
Zhong-Hua Lin, Department of Chemistry, College of Chemical Engineering, State Key Laboratory of Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, Fujian, China;

Corresponding Author

Jian-Zhang Zhou(jzzhou@xmu.edu.cn)

Abstract

The electronic structures and properties of nano-semiconductors are quite different from those of bulk semiconductors due to the nano-size effect (such as quantum size effect). Moreover, when the nano-semiconductor materials are deposited onto the substrate to construct a device, their electronic properties are also affected by the substrate or other components, which may lead to different performances of nano-semiconductors based photoelectric devices, and consequently, different corresponding characterization methods are needed. The combination of photocurrent spectroscopy, photoluminescence spectroscopy with UV-Vis absorption spectroscopy can provide a more comprehensive characterization for the electronic properties and photoelectrochemical performances of nano-semiconductors in photoelectric devices. Our research group has long devoted to the studies in the preparations and characterizations of different nano-semiconductors for photoelectric devices. In this review, we firstly introduce the main different features in electronic properties of nano-semiconductors and the corresponding characterization methods, and then describe how to combine the abovementioned three spectroscopic methods to investigate the electronic properties and photoelectrochemical performances of the nano-semiconductors for photovoltaic cells, electroluminescent diodes, and other photocatalytic systems by detailed examples. Photoluminescence spectroscopy is a common method to characterize the surface states of the semiconductors, while photocurrent spectroscopy can provide the supplementary information of surface states. Especially, the photoluminescence efficiency is low for the nonradiactive recombination dominated materials such as indirect-bandgap semiconductors. The results of photocurrent spectroscopy are more useful under these circumstances. Furthermore, the combined characterization in surface states of the nano-semiconductors by photocurrent spectroscopy with photoluminescence spectroscopy is specially discussed. The combined applications of these three spectroscopic methods for the nano-semiconductors in photoeltric devices are not only beneficial to obtain intensive understanding the electric properties and the photo-induced charge transfer mechanism at the interface of the nano-semiconductors, but also useful to guide the preparation of nano-semiconductor materials for photoelectric devices and optimal to the photoelectrochemical performances.

Graphical Abstract

Keywords

photocurrent spectroscopy, photoluminescence spectroscopy, UV-Vis absorption spectroscopy, nano-semiconductors

DOI Link

https://doi.org/10.13208/j.electrochem.200728

Publication Date

2021-02-28

Online Available Date

2020-08-25

Revised Date

2020-08-04

Received Date

2020-07-28

Recommended Citation

Si-Da Bian, Jian-Zhang Zhou, Zhong-Hua Lin. Combined Applications of Photocurrent Spectroscopy, Photoluminescence Spectroscopy and UV-Vis Spectroscopy for Nano-Semiconductor Based Photoelectric Devices[J]. Journal of Electrochemistry, 2021 , 27(1): 45-55.
DOI: 10.13208/j.electrochem.200728
Available at: https://jelectrochem.xmu.edu.cn/journal/vol27/iss1/4

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