Issue 4, 2020

High-efficiency perovskite solar cells with poly(vinylpyrrolidone)-doped SnO2 as an electron transport layer

Abstract

Hybrid organic–inorganic perovskites have attracted intensive attention as the absorber layer in high-performance perovskite solar cells (PSCs). The interface between the electron transport layer and the perovskite layer in perovskite solar cells has a large effect on the device performance. Herein, we report a perovskite solar cell with a cell structure of ITO/ETL/(FAPbI3)0.97(MAPbBr3)0.03/spiro-OMeTAD/MoO3/Ag, where the poly(vinylpyrrolidone) (PVP)-doped SnO2 film works as the electron transport layer. We observe that the perovskite film grown on PVP-SnO2 shows more uniform crystalline grains than the control sample grown on the pure SnO2, and the electron mobility of the PVP-SnO2 film is higher than that of the pure SnO2 film; consequently, PVP-SnO2 can efficiently extract electrons from the perovskite layer. As a result, the PSCs using the PVP-doped SnO2 ETL showed an increased power conversion efficiency (PCE). The optimized device using the PVP-SnO2 electron transport layer shows an improved PCE of 19.55%, while the PSC using the SnO2 electron transport later shows a PCE of 17.50%. Furthermore, it is feasible to add PVP into the electron transport layer of SnO2 to improve the performance of the planar perovskite solar cell device.

Graphical abstract: High-efficiency perovskite solar cells with poly(vinylpyrrolidone)-doped SnO2 as an electron transport layer

  • This article is part of the themed collection: Perovskites

Article information

Article type
Paper
Submitted
14 פבר 2020
Accepted
05 יונ 2020
First published
10 יונ 2020
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2020,1, 617-624

High-efficiency perovskite solar cells with poly(vinylpyrrolidone)-doped SnO2 as an electron transport layer

M. Zhang, F. Wu, D. Chi, K. Shi and S. Huang, Mater. Adv., 2020, 1, 617 DOI: 10.1039/D0MA00028K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements