Improvement of The Performance of Planar Heterojunction Perovskite Solar Cells by Using Pyridine as Additive

LI Zhi-cheng; WANG Ya-ling; YANG Yin; CAO Huan-qi; QIN Wen-jing; YANG Li-ying; JI Wei-wei

doi:10.3788/fgxb20173811.1503

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Improvement of The Performance of Planar Heterojunction Perovskite Solar Cells by Using Pyridine as Additive

更新时间：2020-08-12

- Improvement of The Performance of Planar Heterojunction Perovskite Solar Cells by Using Pyridine as Additive
- Chinese Journal of Luminescence Vol. 38, Issue 11, Pages: 1503-1509(2017)
- 作者机构：
  
  1. 天津理工大学显示材料与光电器件教育部重点实验室天津,300384
  2. 天津市光电显示材料与器件重点实验室, 天津理工大学材料科学与工程学院天津,300384
  3. 天津大学化工学院天津,300072
  4. 中国电子科技集团第18 研究所天津,300384
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China (51402214,61504097);Natu
- DOI：10.3788/fgxb20173811.1503
  CLC： TM914.4
- Received：18 April 2017，
  
  Revised：24 August 2017，
  
  Published：05 November 2017
- 稿件说明：
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李志成, 王亚凌, 杨银等. 利用吡啶添加剂提高钙钛矿太阳能电池的光伏性能[J]. 发光学报, 2017,38(11): 1503-1509

LI Zhi-cheng, WANG Ya-ling, YANG Yin etc. Improvement of The Performance of Planar Heterojunction Perovskite Solar Cells by Using Pyridine as Additive[J]. Chinese Journal of Luminescence, 2017,38(11): 1503-1509
李志成, 王亚凌, 杨银等. 利用吡啶添加剂提高钙钛矿太阳能电池的光伏性能[J]. 发光学报, 2017,38(11): 1503-1509 DOI： 10.3788/fgxb20173811.1503.

LI Zhi-cheng, WANG Ya-ling, YANG Yin etc. Improvement of The Performance of Planar Heterojunction Perovskite Solar Cells by Using Pyridine as Additive[J]. Chinese Journal of Luminescence, 2017,38(11): 1503-1509 DOI： 10.3788/fgxb20173811.1503.

摘要

研究了吡啶作为添加剂对一步法制备甲胺铅碘钙钛矿太阳能电池光电性能的影响。利用SEM、AFM、XRD、UV-Vis、PL等手段研究了不同吡啶掺杂浓度对制备的CH

PbI

薄膜的表面形貌、结晶度和光学性能的影响。研究结果表明：少量的吡啶掺杂可以提高钙钛矿薄膜的覆盖率及降低薄膜的表面粗糙度。当在CH

PbI

前驱体溶液中添加体积分数为1%的吡啶时，制备的钙钛矿太阳能电池的能量转换效率达到7.33%，而未加吡啶的对比器件效率仅为1.01%。进一步添加吡啶会导致钙钛矿材料的降解。

Abstract

An efficient one-step solution method was demonstrated to prepare CH

PbI

perovskite solar cells by adding pyridine to the precursor solution. The film morphology

crystallinity

and optical properties of CH

PbI

perovskite films were investigated by SEM

AFM

XRD

UV-Vis and PL. The results show that the perovskite film properties (coverage of perovskite films and surface morphology) can be manipulated by incorporating a small amount of pyridine. The adding of pyridine is helpful to obtain a smooth

continuous and dense morphology. With the optimized pyridine volume fraction of 1%

the power conversion efficiency of 7.33% with

of 14.64 mA/cm

of 0.82 V

and FF of 0.61 is obtained for the planar device structure. By contrast

the power conversion efficiency of the device without pyridine is only 1.01%. However

the further increase of the content of pyridine can result in the decomposition of perovskite

because the pyridine can easily form complexes with perovskite and induce the perovskite dissociation.

关键词

Keywords

references

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