DOI: 10.1039/d6mh01191h ISSN: 2051-6347
Halide segregation and structural dynamics of wide-bandgap perovskites in solar cells
Kyoungtae Kim, Seonhong Min, Yujin Na, Eun-Jung Kim, Taeho Moon, Junsang Cho, Jinhyun KimThis work reveals that processing routes govern evolution in wide-bandgap perovskites. A 2D/3D bilayer suppresses halide migration, whereas quasi-2D formation accelerates phase segregation. The 2D/3D bilayer enables stable perovskite electronics.