期刊
ADVANCED MATERIALS
卷 31, 期 41, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201903649
关键词
flexibility; impulse calculation; modules; organic solar cells; slot-die printing
类别
资金
- National Natural Science Foundation of China (NSFC) [51673091, 51833004, 21764009, 51672121]
- National Science Fund for Distinguished Young Scholars [51425304]
- NSFC-Guangdong Joint funding, China [U1801256]
- Natural Science Foundation of Jiangxi Province [20161BBH80044, 20161BCB24004, 20161ACB20020]
- Ministry of science and technology [2016YFA0200700]
- NSFC [21704082, 21875182, 21534003, 51320105014]
- China Postdoctoral Science Foundation [2017M623162]
- 111 project 2.0 [BP2018008]
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
The blossoming of organic solar cells (OSCs) has triggered enormous commercial applications, due to their high-efficiency, light weight, and flexibility. However, the lab-to-manufacturing translation of the praisable performance from lab-scale devices to industrial-scale modules is still the Achilles' heel of OSCs. In fact, it is urgent to explore the mechanism of morphological evolution in the bulk heterojunction (BHJ) with different coating/printing methods. Here, a general approach to upscale flexible organic photovoltaics to module scale without obvious efficiency loss is demonstrated. The shear impulse during the coating/printing process is first applied to control the morphology evolution of the BHJ layer for both fullerene and nonfullerene acceptor systems. A quantitative transformation factor of shear impulse between slot-die printing and spin-coating is detected. Compelling results of morphological evolution, molecular stacking, and coarse-grained molecular simulation verify the validity of the impulse translation. Accordingly, the efficiency of flexible devices via slot-die printing achieves 9.10% for PTB7-Th:PC71BM and 9.77% for PBDB-T:ITIC based on 1.04 cm(2) . Furthermore, 15 cm(2) flexible modules with effective efficiency up to 7.58% (PTB7-Th:PC71BM) and 8.90% (PBDB-T:ITIC) are demonstrated with satisfying mechanical flexibility and operating stability. More importantly, this work outlines the shear impulse translation for organic printing electronics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据