Novel Perovskite Solar Cell Architecture Featuring Efficient Light Capture and Ultrafast Carrier Extraction

A new perovskite solar cell (PSC) structure with a functionalized interface between perovskite and a hole transport material has been proposed in this report. The short circuit current density of PSC was notably enhanced with the novel architecture (with an increase of 8.7%), and a power conversion...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2017-07, Vol.9 (28), p.23624-23634
Main Authors: Yu, Yu, Lei, Lei, Yang, Songwang, Xie, Junjie, Shao, Jun, Cao, Qipeng, Zhang, Sheng, Ni, Xiaojie, Ye, Bangjiao, Liu, Yan
Format: Article
Language:English
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Summary:A new perovskite solar cell (PSC) structure with a functionalized interface between perovskite and a hole transport material has been proposed in this report. The short circuit current density of PSC was notably enhanced with the novel architecture (with an increase of 8.7%), and a power conversion efficiency (PCE) of 16.93% was achieved. With the increased perovskite/hole conductor interface, hysteresis suppression was observed. The advantages of this structure in light-harvesting efficiency, trap density, and carrier separation rate were proved by various characterization and analysis studies. It is noteworthy that a PCE of 14.67% was achieved with poly­(3-hexyl-thiophene), which to our knowledge is the highest performing PSC based on this material.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.7b03666