Journal
ADVANCED ENERGY MATERIALS
Volume 8, Issue 28, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201702730
Keywords
anode interlayers; cathode interlayers; interfacial modification; small molecules
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Funding
- National Natural Science Foundation of China [51773213, 61474125]
- Key Research Program of Frontier Sciences, CAS [QYZDB-SSW-JSC047]
- China Postdoctoral Science Foundation [2017M610380]
- K. C. Wong Education Foundation [rczx0800]
- Zhejiang Province Science and Technology Plan [2018C01047]
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry
- National Youth Top-notch Talent Support Program
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This review provides an up-to-date review about the small molecule interlayers (SMIs) in organic solar cells (OSCs). Compared to polymer interlayers, SMIs exhibit intrinsic advantages such as easy synthesis and purification, monodispersity, well-defined chemical structure, and high batch-to-batch reproducibility. Recently, various SMIs have been reported with landmark efficiencies of over 10% in both conventional and inverted OSCs, exhibiting promising potential in commercial application. In this review, the authors summarize the progress of SMIs from a device fabrication point of view, paying particular attention to the material categories, molecular design, preparation process, and applicable device structure. In addition, the working mechanisms of different SMIs are also discussed, including the structure-property relationships and the corresponding impact on device performance. Finally, a brief outlook is provided that includes opportunities and challenges in this emerging area.
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