Hysteresis dependence on CH3NH3PbI3 deposition method in perovskite solar cells

被引：2

作者：

Fernandes, Silvia Leticia ^{[1
,2
]}

Bregadiolli, Bruna Andressa ^{[2
]}

Veron, Anna Christina ^{[3
]}

Miesch, Frank A. ^{[3
]}

Zaghete, Maria Aparecida ^{[1
]}

de Oliveira Graeff, Carlos Frederico ^{[4
]}

机构：

[1] Univ Estadual Paulista, Inst Quim Araraquara, Sao Paulo, SP, Brazil

[2] POSMAT, Programa Posgrad Ciencia & Tecnol Mat, Araraquara, SP, Brazil

[3] Empa, Swiss Fed Inst Mat Sci & Technol, Lab Funct Polymers, Dubendorf, Switzerland

[4] Univ Estadual Paulista, Fac Ciencias Bauru, Dept Fis, Sao Paulo, SP, Brazil

来源：

THIN FILMS FOR SOLAR AND ENERGY TECHNOLOGY VIII | 2016年 / 9936卷

关键词：

Perovskite solar cells; sequential deposition; solvent engineering; hysteresis; niobium pentoxide; BEHAVIOR;

D O I：

10.1117/12.2236855

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

CH3NH3PbI3 perovskite solar cells are one of the most exciting technologies in the renewable energy field, resulting in over 20% power conversion efficiency. Deep understanding of the working principle is now required to turn the high efficiency solar cells into a reliable technology. In this work we have explored the role of deposition method on the crystallinity of perovskite films and its influence on the hysteresis behavior of the current-voltage characteristics. In addition Nb2O5 was used as hole blocking layer and its influence is also discussed. We have found that hysteresis is strongly dependent on both; perovskite deposition method and Nb2O5 thickness. The ideal condition where the hysteresis is suppressed or minimized was achieved by using the sequential deposition method for the perovskite semiconductor and a hole blocking layer of 50 nm.

引用

页数：9

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