Lead‐Free Halide Perovskite Solar Cells with High Photocurrents Realized Through Vacancy Modulation

20141,177 citationsJournal Articlegreen Open Access

Authors

Mulmudi Hemant Kumar · Nanyang Technological University

Dharani Sabba · Nanyang Technological University

Wei Lin Leong · Agency for Science, Technology and Research

Pablo P. Boix

Rajiv Ramanujam Prabhakar · Nanyang Technological University

Tom Baikie

Shi Chen · Nanyang Technological University

Hong Ding

Abstract

Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the background charge carrier density.

Topics & Keywords

Perovskite Materials and Applications Conducting polymers and applications Chalcogenide Semiconductor Thin Films

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Advanced Materials

Volume 26, Issue 41, pp. 7122-7127

DOI: 10.1002/adma.201401991

Field-Weighted Citation Impact: 45.32