Enhanced performance of perovskite solar cells by strengthening a self-embedded solvent annealing effect in perovskite precursor films

被引：13

作者：

Cao, Xiaobing ^{[1
]}

Zhi, Lili ^{[2
]}

Li, Yahui ^{[1
]}

Cui, Xian ^{[1
]}

Ci, Lijie ^{[2
]}

Ding, Kongxian ^{[3
]}

Wei, Jinquan ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China

[3] Shenzhen Jiawei Solar Lighting Co Ltd, Fuping Rd,New Ind Zone 1-4, Shenzhen 518112, Guangdong, Peoples R China

来源：

RSC ADVANCES | 2017年 / 7卷 / 77期

关键词：

ACID-BASE ADDUCT; DEVICE EFFICIENCY; GRAIN-GROWTH; PBI2; FILMS; CRYSTALLIZATION; HYSTERESIS; MORPHOLOGY; PASSIVATION; DEPOSITION; SIZE;

D O I：

10.1039/c7ra10294a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The solvent embedded in the intermediate phase is widely observed in the fabrication of perovskite films. The perovskite precursor films obtained from Lewis adducts through molecular exchange contain some residue solvent. It has an intrinsic solvent annealing effect during the annealing process. Here, we predeposit a protective layer on the perovskite precursor films to retard the escape of solvent during the annealing process. The restricted solvent strengthens the solvent annealing effect during the formation of perovskite films. As a result, the perovskite quality, including grain size and crystallization, is improved significantly, which leads to efficient charge transportation, low recombination rate, and enhancement of the photovoltaic performance of the corresponding perovskite solar cells.

引用

页码：49144 / 49150

页数：7

共 46 条

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