The Interplay between Trap Density and Hysteresis in Planar Heterojunction Perovskite Solar Cells

• Published in: Nano letters Vol. 17; no. 7; pp. 4270 - 4276
• Main Authors: Lee, Jin-Wook, Kim, Seul-Gi, Bae, Sang-Hoon, Lee, Do-Kyoung, Lin, Oliver, Yang, Yang, Park, Nam-Gyu
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12.07.2017
• Subjects: trap density; Perovskite; passivation; defect; solar cell; hysteresis
• ISSN: 1530-6984; 1530-6992; 1530-6992
• DOI: 10.1021/acs.nanolett.7b01211

Anomalous current–voltage (J–V) hysteresis in perovskite (PSK) solar cell is open to dispute, where hysteresis is argued to be due to electrode polarization, dipolar polarization, and/or native defects. However, a correlation between those factors and J–V hysteresis is hard to be directly evaluated...