Light trapping effect in perovskite solar cells by the addition of ag nanoparticles, using textured substrates

Jiabin Hao, Huiying Hao, Jianfeng Li, Lei Shi, Tingting Zhong, Chen Zhang, Jingjing Dong, Jie Xing, Hao Liu, Zili Zhang

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

In this contribution, the efficiencies of perovskite solar cells have been further enhanced, based on optical optimization studies. The photovoltaic devices with textured perovskite film can be obtained and a power conversion efficiency (PCE) of the textured fluorine-doped tin oxide (FTO)/Ag nanoparticles (NPs) embedded in c-TiO2/m-TiO2/CH3NH3PbI3/Spiro-OMeTAD/Au showed 33.7% enhancement, and a maximum of up to 14.01% was achieved. The efficiency enhancement can be attributed to the light trapping effect caused by the textured FTO and the incorporated Ag NPs, which can enhance scattering to extend the optical pathway in the photoactive layer of the solar cell. Interestingly, aside from enhanced light absorption, the charge transport characteristics of the devices can be improved by optimizing Ag NPs loading levels, which is due to the localized surface plasmon resonance (LSPR) from the incorporated Ag NPs. This light trapping strategy helps to provide an appropriated management for optical optimization of perovskite solar cells.

Original languageEnglish
Article number815
JournalNanomaterials
Volume8
Issue number10
DOIs
StatePublished - Oct 10 2018
Externally publishedYes

Funding

This work is supported by the Fundamental Research Funds for the Central Universities under Grand Nos. 2652017154 and Central Universities under Grand 2652017163, and the National Natural Science Foundation of China under Grand No. 11404293.

FundersFunder number
National Natural Science Foundation of China11404293

    Keywords

    • Ag NPs
    • LSPR
    • Light trapping
    • Perovskite
    • Textured-FTO

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