Document Type

Article

Publication Date

1-2019

DOI

10.3390/app9010188

Publication Title

Applied Sciences

Volume

9

Issue

1

Pages

188 (25 pages)

Abstract

Perovskite solar cells have achieved photo-conversion efficiencies greater than 20%, making them a promising candidate as an emerging solar cell technology. While perovskite solar cells are expected to eventually compete with existing silicon-based solar cells on the market, their long-term stability has become a major bottleneck. In particular, perovskite films are found to be very sensitive to external factors such as air, UV light, light soaking, thermal stress and others. Among these stressors, light, oxygen and moisture-induced degradation can be slowed by integrating barrier or interface layers within the device architecture. However, the most representative perovskite absorber material, CH3NH3PbI3 (MAPbI3), appears to be thermally unstable even in an inert environment. This poses a substantial challenge for solar cell applications because device temperatures can be over 45°C higher than ambient temperatures when operating under direct sunlight. Herein, recent advances in resolving thermal stability problems are highlighted through literature review. Moreover, the most recent and promising strategies for overcoming thermal degradation are also summarized.

Comments

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Original Publication Citation

Ava, T. T., Al Mamun, A., Marsillac, S., & Namkoong, G. (2019). A review: Thermal stability of methylammonium lead halide based perovskite solar cells. Applied Sciences-Basel, 9(1). doi:10.3390/app9010188

ORCID

0000-0003-0826-8119 (Marsillac), 0000-0002-9795-8981 (Namkoong)

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