Enhanced UV-light stability of planar heterojunction perovskite solar cells with caesium bromide interface modification

Li, Wenzhe, Zhang, Wei, Van Reenen, Stephan, Sutton, Rebecca J., Fan, Jiandong, Haghighirad, Amir A., Johnston, Michael B., Wang, Liduo and Snaith, Henry J. (2016) Enhanced UV-light stability of planar heterojunction perovskite solar cells with caesium bromide interface modification. Energy and Environmental Science, 9 (2). pp. 490-498. ISSN 1754-5692

Others
c5ee03522h

Request a copy
[img] Postscript
c5ee03522h - Whole Document
Restricted to Repository staff only

111kB
Item Type:Article
Item Status:Live Archive

Abstract

Interfacial engineering has been shown to play a vital role in boosting the performance of perovskite solar cells in the past few years. Here we demonstrate that caesium bromide (CsBr), as an interfacial modifier between the electron collection layer and the CH3NH3PbI3−xClx absorber layer, can effectively enhance the stability of planar heterojunction devices under ultra violet (UV) light soaking. Additionally, the device performance is improved due to the alleviated defects at the perovskite-titania heterojunction and enhanced electron extraction.

Keywords:UV-light stability, caesium bromide, perovskite solar cells, NotOAChecked
Subjects:F Physical Sciences > F200 Materials Science
F Physical Sciences > F120 Inorganic Chemistry
Divisions:College of Science > School of Chemistry
Related URLs:
ID Code:22662
Deposited On:16 Mar 2016 13:14

Repository Staff Only: item control page