5. ADDITIVES IN PEROVSKITE SOLAR CELL PLAY KEY ROLE

Department: NanoEngineering
Research Institute Affiliation: Agile - Sustainable Power and Energy Center (SPEC)
Faculty Advisor(s): Ying Meng

Primary Student
Name: Shen Wang
Email: shw117@ucsd.edu
Phone: 858-436-5849
Grad Year: 2018

Abstract
As an emerging photovoltaic device with commercial potential, hybrid organic-inorganic perovskite solar cells (PSCs) have developed rapidly in recent years. With a certified 21.0% power conversion efficiency, compatibility with flexible substrates, and low fabrication energy consumption, PSCs are attracting enormous interest in both the academic and industrial field. Based on the samples prepared by focused ion beam, the function of additives in PSCs were characterized by multiple techniques. In PSCs, we found that the additives LiTFSI and tBP functioned as p-dopant and morphology controller for the HTL. They improved the uniformity and conductivity of the hole transport layer. Moreover, FIB-TEM was used to image the long-term degradation of PSCs, and showed that the additives in PSCs were crucial factors for the device performance and stability.

Industry Application Area(s)
Energy/Clean technology | Materials

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