Solvent and Concentration Optimization of Nano-ZnO Inks and Their Application in Perovskite Solar Cells

LU Hui; ZHANG Lian-ping; LUO Qun; ZHANG Dong-yu; MA Chang-qi; HAO Jian; CUI Zheng

doi:10.3788/fgxb20163703.0265

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Solvent and Concentration Optimization of Nano-ZnO Inks and Their Application in Perovskite Solar Cells

更新时间：2020-08-12

- Solvent and Concentration Optimization of Nano-ZnO Inks and Their Application in Perovskite Solar Cells
- Chinese Journal of Luminescence Vol. 37, Issue 3, Pages: 265-273(2016)
- 作者机构：
  
  1. 上海大学理学院化学系上海,200444
  2. 中国科学院苏州纳米技术与纳米仿生研究所印刷电子技术研究中心,江苏苏州,215123
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163703.0265
  CLC： TM914.4
- Received：03 December 2015，
  
  Revised：25 December 2015，
  
  Published：05 March 2016
- 稿件说明：
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陆慧, 张连萍, 骆群等. 纳米ZnO墨水的溶剂及浓度优化及其在钙钛矿太阳能电池中的应用[J]. 发光学报, 2016,37(3): 265-273

LU Hui, ZHANG Lian-ping, LUO Qun etc. Solvent and Concentration Optimization of Nano-ZnO Inks and Their Application in Perovskite Solar Cells[J]. Chinese Journal of Luminescence, 2016,37(3): 265-273
陆慧, 张连萍, 骆群等. 纳米ZnO墨水的溶剂及浓度优化及其在钙钛矿太阳能电池中的应用[J]. 发光学报, 2016,37(3): 265-273 DOI： 10.3788/fgxb20163703.0265.

LU Hui, ZHANG Lian-ping, LUO Qun etc. Solvent and Concentration Optimization of Nano-ZnO Inks and Their Application in Perovskite Solar Cells[J]. Chinese Journal of Luminescence, 2016,37(3): 265-273 DOI： 10.3788/fgxb20163703.0265.

摘要

纳米金属ZnO作为界面缓冲材料能够有效提高基于有机金属卤化物-甲基碘化铵的钙钛矿(PVSK)太阳能电池的水氧稳定性

是溶液制备高稳定性钙钛矿太阳能电池的一个关键技术。而在器件的制备过程中

ZnO分散溶剂的渗透可能导致下层钙钛矿薄膜的结构物性发生变化

从而对器件性能造成显著的影响。为解决该问题

本文详细分析了不同极性有机溶剂对ZnO分散性的影响

研究了不同溶剂对PVSK/PCBM薄膜的吸收光谱和晶体结构的影响

最终获得了甲醇-正丁醇混合溶剂的体积比为1:1、ZnO质量浓度为10 mgmL

-1

的优化分散体系

为进一步开展全溶液法制备钙钛矿太阳能电池提供了重要指导。

Abstract

ZnO nanoparticle has been used as cathode buffer layer (CBL) in organo-lead halide perovskite (PVSK) solar cells to improve device stability against oxygen and moisture. For solution processing procedure

solvents for dissolving ZnO has to be carefully optimized

since solvent penetration during the CBL deposition might cause the decomposition of the PVSK film. Aiming at the development of nano-ZnO inks for using in PVSK solar cells

the current work systematically investigate the dispersibility of nano-ZnO in various polar solvents

including acetone

methanol

ethanol

isopropanol

n-butanol

and a mixture solvent of methanol:

-buthanol (MeOH:

-BuOH

1:1

v/v

)

and the influence of such solvent on the UV-Vis absorption and crystalline properties of the underlying PVSK/PCBM film. PVSK solar cells with a device structure of ITO/PEDOT:PSS/PSS/PVSK/PCBM/ZnO/Al were then fabricated and tested. The optimized nano-ZnO ink is found to be MeOH:

-BuOH mixture solvent based (1:1

v/v

) with a concentration of 10 mgmL

-1

. The current work provides an important guideline for developing CBL inks for PVSK solar cells.

关键词

Keywords

references

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