Naoyuki Nishimura, Hiroyuki Kanda, Takurou N. Murakami
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引用次数: 0
Abstract
We propose a direct ion-exchange (DI) method for preparing a hole transport material (HTM) solution undergoing spontaneous perovskite passivation via HTM deposition and verify its applicability for the photovoltaic performance enhancement of perovskite solar cells (PSCs). The simple synthesis of a Spiro-OMeTAD HTM solution based on ion exchange via dissolving and mixing multiple solid materials in a chlorobenzene solution produces an HTM solution similar to that obtained with an n-octylammonium bis(trifluoromethanesulfonyl)imide ionic liquid functioning as a spontaneous perovskite passivator. Using the resulting HTM solution, the power conversion efficiency of PSCs was enhanced up to 23.0% without conventional postpassivation processes.
期刊介绍:
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.