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 Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.