Toward All Room-Temperature, Solution-Processed, High-Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine-Promoted Perovskite Formation

Hong Zhang; Jiaqi Cheng; Dan Li; Francis Lin; Jian Mao; Chunjun Liang; Alex K-Y Jen; Michael Grätzel; Wallace C H Choy

doi:10.1002/adma.201604695

Toward All Room-Temperature, Solution-Processed, High-Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine-Promoted Perovskite Formation

Adv Mater. 2017 Apr;29(13). doi: 10.1002/adma.201604695. Epub 2017 Jan 27.

Authors

Hong Zhang¹, Jiaqi Cheng¹, Dan Li², Francis Lin³, Jian Mao¹, Chunjun Liang¹, Alex K-Y Jen³, Michael Grätzel⁴, Wallace C H Choy¹

Affiliations

¹ Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
² Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing, 100044, P. R. China.
³ Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
⁴ Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland.

PMID: 28128871
DOI: 10.1002/adma.201604695

Abstract

A new, all room-temperature solution process is developed to fabricate efficient, low-cost, and stable perovskite solar cells (PVSCs). The PVSCs show high efficiency of 17.10% and 14.19%, with no hysteresis on rigid and flexible substrates, respectively, which are the best efficiencies reported to date for PVSCs fabricated by room-temperature solution-processed techniques. The flexible PVSCs show a remarkable power-per-weight of 23.26 W g^-1 .

Keywords: flexible photovoltaics; perovskite films; perovskite solar cells; pyridine; room temperature production.