期刊
ADVANCED MATERIALS
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202107476
关键词
miscibility; morphology; progress; solubility; ternary blend solar cells
类别
资金
- National Natural Science Foundation of China (NSFC) [21825502, 22075190]
- Special funds for local science and technology development guided by the central government [2020ZYD004]
- Foundation of State Key Laboratory of Polymer Materials Engineering [SKLPME 2017-2-04]
- Fundamental Research Funds for the Central Universities [YJ202069, YJ202116]
This review provides an overview of the factors affecting the morphology of ternary blend organic solar cells (TB-OSCs) and summarizes the recent progress in morphology studies, including molecular crystallinity, molecular packing orientation, domain size and purity, etc. It also offers prospects for the future development of TB-OSCs.
Ternary blend organic solar cells (TB-OSCs) incorporating multiple donor and/or acceptor materials into the active layer have emerged as a promising strategy to simultaneously improve the overall device parameters for realizing higher performances than binary devices. Whereas introducing multiple materials also results in a more complicated morphology than their binary blend counterparts. Understanding the morphology is crucially important for further improving the device performance of TB-OSC. This review introduces the solubility and miscibility parameters that affect the morphology of ternary blends. Then, this review summarizes the recent processes of morphology study on ternary blends from the aspects of molecular crystallinity, molecular packing orientation, domain size and purity, directly observation of morphology, vertical phase separation as well as morphological stability. Finally, summary and prospects of TB-OSCs are concluded.
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