Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.075
Publication date: 22nd December 2022
Our research group is focused on the development of functional polymer interlayers for various kinds of optoelectronic devices, including thin-film transistor (TFT), (photo-)memory, light-emitting diode (LED), and solar cell devices. We are particularly interested in exploring the structure-performance relationships of polymers. In addition to advances in the controlled synthesis of organic semiconductors, we also explore innovative interfacial and device engineering to optimize the device performance. Herein, we highlight our recent works on interface engineering for polymer solar cells. In this presentation, an integrated study of combining material synthesis, interface engineering, and morphology analyses will be introduced and discussed to explore the full promise of the devices, with a particular focus on long-term device stability, including thermal stability, photostabiltiy, and underwater-stability.[1,2] We first present robust interface engineering of graphene oxide nanosheets (GNS) to improve the thermal and photostability of non-fullerene bulk-heterojunction (NFA BHJ) OPVs to practical levels. Afterwards, we demonstrate the great potential of all-polymer blends and np-TiO2 ETL to improve the durability of unencapsulated OPVs in high humidity environments and even underwater immersion.
C.-C. C. gratefully thanks the financial support from the Ministry of Education (110L9006) and MOST (110-2634-F-002-043, 110-2124-M-002-013, 110-3116-F-011-003, 109-2628-E-002-008-MY3, 110-2923-E-002-007-MY3, 110-2628-E-002-011) and from National Taiwan University (111L7818).
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