skip to main content

Title: Liquid water- and heat-resistant hybrid perovskite photovoltaics via an inverted ALD oxide electron extraction layer design

Despite rapid advances in conversion efficiency (>22%), the environmental stability of perovskite solar cells remains a substantial barrier to commercialization. Here, we show a significant improvement in the stability of inverted perovskite solar cells against liquid water and high operating temperature (100 °C) by integrating an ultrathin amorphous oxide electron extraction layer via atomic layer deposition (ALD). Here, these unencapsulated inverted devices exhibit a stable operation over at least 10 h when subjected to high thermal stress (100 °C) in ambient environments, as well as upon direct contact with a droplet of water without further encapsulation.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [2] ;  [2] ;  [4] ;  [5]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Argonne-Northwestern Solar Energy Research Center, Evanston, IL (United States)
  2. Argonne-Northwestern Solar Energy Research Center, Evanston, IL (United States); Northwestern Univ., Evanston, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Argonne-Northwestern Solar Energy Research Center, Evanston, IL (United States); Northwestern Univ., Evanston, IL (United States)
  5. Argonne-Northwestern Solar Energy Research Center, Evanston, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
OSTI Identifier:
1332004
Grant/Contract Number:
SC0001059; AC02-06CH11357
Type:
Published Article
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 16; Journal Issue: 12; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; atomic layer deposition; hybrid perovskites; inverted design; photovoltaics; stability