无机材料学报2018，Vol.33Issue(6)：641-647,7.DOI:10.15541/jim20170380
碳纳米管和二甲基亚砜对钙钛矿太阳电池中PEDOT:PSS空穴传输层的协同影响
Cooperative Effect of Carbon Nanotubes and Dimethyl Sulfoxide on PEDOT:PSS Hole Transport Layer in Planar Perovskite Solar cells
摘要
Abstract
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) film is commonly used as hole transport layer in planar perovskite solar cells (PSCs). To further strengthen the charge transport within PEDOT:PSS film and boost the growth of the perovskite crystal on PEDOT:PSS film, carbon nanotubes (CNTs) and dimethyl sulfoxide (DMSO) were simultaneously used as additives to prepare the co-modified film of CNT-DMSO-PEDOT:PSS. Results demonstrate an advantageous cooperative effect of CNTs and DMSO on the co-modified film. The dispersed CNTs with a grid-like structure throughout PEDOT:PSS matrix plays dual roles: to promote the perovskite crystal growth on co-modified surface and to reduce the sheet resistance of the co-modified film, while DMSO improves the conductivity of the co-modified film and controls the loss of CNTs from the co-modified film. Due to the cooperative effect, co-modified film is significantly more capable to collect, transport charges and enhance the perovskite layer growth with larger grains on its surface than that with pristine PEDOT:PSS film or PEDOT:PSS films modified by a single additive of CNT or DMSO, CNT-PEDOT:PSS or DMSO-PEDOT:PSS. Meanwhile, the co-modified film maintains high transparency with a transmittance of 88.8% at 550 nm. As a result, the PSCs of co-modified film has a hig power conversion efficiency of 5.75% in contrast to the devices based on the CNT-PEDOT:PSS (3.01%), DMSO-PEDOT:PSS (2.03%) and pristine PEDOT:PSS (1.30%) films.关键词
碳纳米管/二甲基亚砜/PEDOT:PSS/空穴传输层/钙钛矿太阳电池Key words
carbon nanotubes/dimethyl sulfoxide/PEDOT:PSS/hole transport layer/perovskite solar cells分类
信息技术与安全科学引用本文复制引用
徐顺建,肖宗湖,罗晓瑞,钟炜,罗永平,欧惠..碳纳米管和二甲基亚砜对钙钛矿太阳电池中PEDOT:PSS空穴传输层的协同影响[J].无机材料学报,2018,33(6):641-647,7.基金项目
国家自然科学基金(51462035) （51462035）
江西省青年科学家培养对象计划(20133BCB23035) （20133BCB23035）
江西省自然科学基金(20161BAB206106) （20161BAB206106）
江西省高等学校科技落地计划(KJLD13100) （KJLD13100）
江西省教育厅科技项目(GJJ171060) National Natural Science Foundation of China (51462035) （GJJ171060）
Training Programme Foundation for Young Scientist of Jiangxi, China (20133BCB23035) （20133BCB23035）
Natural Science Foundation of Jiangxi (20161BAB206106) （20161BAB206106）
Educational Commis-sion of Jiangxi, China (KJLD13100) （KJLD13100）
Educational Commission of Jiangxi, China (GJJ171060) （GJJ171060）
