Modulating crystal grain size and optoelectronic properties of perovskite films for solar cells by reaction temperature

被引：188

作者：

Ren, Xiaodong ^{[1
,2
]}

Yang, Zhou ^{[1
,2
]}

Yang, Dong ^{[1
,2
]}

Zhang, Xu ^{[1
,2
]}

Cui, Dong ^{[1
,2
]}

Liu, Yucheng ^{[1
,2
]}

Wei, Qingbo ^{[1
,2
]}

Fan, Haibo ^{[1
,2
]}

Liu, Shengzhong ^{[1
,2
,3
]}

机构：

[1] Shaanxi Normal Univ, Sch Mat Sci & Engn, Natl Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Peoples R China

[2] Shaanxi Normal Univ, Shaanxi Engn Lab Adv Energy Technol, Sch Mat Sci & Engn, Xian 710119, Peoples R China

[3] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iCHEM, Dalian 116023, Peoples R China

来源：

NANOSCALE | 2016年 / 8卷 / 06期

关键词：

SINGLE-CRYSTALS; GROWTH; MORPHOLOGY; HYSTERESIS; DEPOSITION;

D O I：

10.1039/c5nr08935b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Regulating the temperature during the direction contact and intercalation process ( DCIP) for the transition from PbI2 to CH3NH3PbI3 modulated the crystallinity, crystal grain size and crystal grain orientation of the perovskite films. Higher temperatures produced perovskite films with better crystallinity, larger grain size, and better photovoltaic performance. The best cell, which had a PCE of 12.9%, was obtained on a film prepared at 200 degrees C. Further open circuit voltage decay and film resistance characterization revealed that the larger grain size contributed to longer carrier lifetime and smaller carrier transport resistance, both of which are beneficial for solar cell devices.

引用

页码：3816 / 3822

页数：7

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