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

By Wenzhe Li, Wei Zhang, S. V. Reenen, Rebecca J. Sutton, Jiandong Fan, A. Haghighirad, M. Johnston, Liduo Wang, H. Snaith. 2016

422 citations recorded by the source corpus.

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.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/4b04cd70500ce80717273b866df6f2cf16f311c1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. Edward H. Sargent
2. Anyi Mei
3. Yaoguang Rong
4. M. McGehee
5. Hongwei Han
6. H. Tan
7. L. Schmidt‐Mende
8. R. Jose

In Materials Chemistry

1. M. McGehee
2. Edward H. Sargent
3. H. Tan
4. L. Schmidt‐Mende
5. R. Jose
6. Anyi Mei
7. Yaoguang Rong
8. S. Seok

Citations in the corpus

• Advances in hole transport materials engineering for stable and efficient perovskite solar cells (2017, background): “The degradation occurs at TiO2 nanoparticle layer and perovskite interface introduces a possibility of ion migration at the ETL perovskite interface thereby leading to decomposition of perovs kite crystal, even in absence of humidity [205,294].”
• Challenges for commercializing perovskite solar cells (2018, background): “2, B and C) (9, 56, 57) between the ETL and the perovskite absorber can improve stability.”