ZHU Xiaomeng，CAO Bingqiang

(School of Materials Science and Engineering, University of Jinan, Jinan 250022, China)

Abstract: In order to improve the surface morphology of the film, reduce the occurrence of interfacial carrier recombination, increase the short-circuit current density, and improve the PCE of the solar cells, the non-toxic EA and IPA two-component anti-solvent were used to achieve the green preparation of the perovskite film. Furthermore, the morphology of the film was controlled by doping carbon quantum dots. The perovskite film was tested by light absorption, XRD, TRPL and IPCE. The results show that the two-component anti-solvent can improve the light absorption of the film and improve the purity of the perovskite film. The addition of carbon quantum dots improves the transport of interface carriers and the short-circuit current density of the solar cells. A PCE of 16.3% is obtained by mixed anti-solvent method, and the PCE of the carbon quantum dots doped device is increased to 18.2%.

Keywords: perovskite solar cell； green anti-solvent； carbon quantum dot

中图分类号：TM914.4+2                            文献标志码：A

文章编号：1008-5548(2019)04-0041-07

DOI:10.13732/j.issn.1008-5548.2019.04.006

收稿日期： 2019-01-28，修回日期：2019-03-02，在线出版时间：2019-04-24 08:48。

基金项目：国家自然科学基金项目，编号：51472110, 51872161；山东省自然科学基金重大基础项目，编号：ZR2017ZB0316。

第一作者简介：朱晓萌(1993—)，男(回族)，硕士研究生，研究方向为钙钛矿太阳能电池。E-mail：351625074@qq.com。

通信作者简介：曹丙强(1978—)，男，博士，教授，博士生导师，研究方向为半导体物理。E-mail： mse_caobq@ujn.edu.cn。