发光学报2017，Vol.38Issue(7)：882-890,9.DOI:10.3788/fgxb20173807.0882
紫外臭氧处理超薄银修饰ITO电极的高效柔性有机太阳能电池
High-efficiency Flexible Organic Solar Cells with UV-ozone Treated Silver Modification ITO Electrode
摘要
Abstract
Highly efficient heterojunction polymer solar cells based on ITO flexible electrode were developed with an UV-ozone-treated ultrathin silver interlayer combined with MoO3/PEDOT:PSS as modification materials. By optimizing UV-ozone-treated time of silver thin films, it could improve the power conversion efficiency (PCE) of the device based on the blend of poly(3-hexylthiophene) (P3HT):[6,6]-phenyl C61-butyric acidmethyl ester (PC61 BM) from 1. 68% (without UV-ozone treatment) to 2. 57% (Ag with 1 min UV-ozone treatment), which might be an AgOx layer formation that im-proves hole extraction and several promising characteristics, including high optical transparency, low sheet resistance and superior surface work function. Meanwhile, the devices with UV-ozone treated thin Ag layer together with MoO3 or PEDOT:PSS improves PCEs from 2. 02% for the device with PET/ITO/MoO3 to 2. 97% for the device with PET/ITO/AgOx/MoO3 and from 2. 01% to 2. 93% for device with PEDOT:PSS. In addition, the PCE of 6. 21% of the flexible poly-mer solar cells based on poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b;4,5-b′] dithiophene-2,6-diyl-alt-(4-(2-ethylhe-xyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl(PBDTTT-EFT):[6,6]-phenyl C71-butyric acid methyl ester (PC71BM) as an photoactive layer was obtained. The efficiency improvement of the flexible OPV based on ITO is due to the increase of the work function of ITO by ITO/Ag/PEDOT:PSS or MoO3 composition.关键词
柔性有机太阳能电池/电极修饰/紫外臭氧处理/超薄AgKey words
flexible organic solar cell/electrode modification/UV-ozone treatment/ultra-thin Ag分类
信息技术与安全科学引用本文复制引用
闫敏楠,郑爽,王丹蓓,刘缓,张宏梅..紫外臭氧处理超薄银修饰ITO电极的高效柔性有机太阳能电池[J].发光学报,2017,38(7):882-890,9.基金项目
973国家重大科学研究计划(2015CB932203) （2015CB932203）
国家自然科学基金(91233117, 51333007) （91233117, 51333007）
江苏省自然科学基金(BK2012834)资助项目 Supported by 973 National Basic Research Program of China (2015CB932203) （BK2012834）
National Natural Science Foundation of China (91233117,51333007) （91233117,51333007）
Natural Science Fund of Jiangsu Province (BK2012834) （BK2012834）
