Efficient, stable silicon tandem cells enabled by anion-engineered wide-bandgap perovskites-Reference-Cited by-同舟云学术

Efficient, stable silicon tandem cells enabled by anion-engineered wide-bandgap perovskites

Published:2020-04-10 Issue:6487 Volume:368 Page:155-160
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Kim Daehan¹^ORCID,Jung Hee Joon²^ORCID,Park Ik Jae³^ORCID,Larson Bryon W.⁴^ORCID,Dunfield Sean P.⁴⁵^ORCID,Xiao Chuanxiao⁴,Kim Jekyung¹^ORCID,Tong Jinhui⁴^ORCID,Boonmongkolras Passarut¹^ORCID,Ji Su Geun³,Zhang Fei⁴^ORCID,Pae Seong Ryul¹^ORCID,Kim Minkyu¹^ORCID,Kang Seok Beom⁶,Dravid Vinayak²^ORCID,Berry Joseph J.⁴⁷⁸^ORCID,Kim Jin Young³^ORCID,Zhu Kai⁴^ORCID,Kim Dong Hoe⁴⁶^ORCID,Shin Byungha¹^ORCID

Affiliation:

1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.

2. Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.

3. Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.

4. National Renewable Energy Laboratory, Golden, CO 80401, USA.

5. Materials Science and Engineering Program, University of Colorado Boulder, Boulder, CO 80309, USA.

6. Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea.

7. Department of Physics, University of Colorado Boulder, Boulder, CO 80309, USA.

8. Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, CO 80309, USA.

Abstract

Engineering perovskites with anions The bandgap of the perovskite top layer in tandem silicon solar cells must be tuned to ∼1.7 electron volts. Usually, the cation composition is varied because the bromine-rich anion compositions with wide bandgaps are structurally unstable. Kim et al. show that by using phenethylammonium as a two-dimensional additive, along with iodine and thiocyanate, bromine-rich perovskite films can be stabilized. A tandem silicon cell delivered >26% certified power conversion efficiency, and a perovskite device maintained 80% of its initial power conversion efficiency of >20% after 1000 hours under illumination. Science , this issue p. 155

Funder

National Science Foundation

U.S. Department of Energy

National Research Foundation of Korea

Korea Institute of Energy Technology Evaluation and Planning

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference38 articles.

1. National Renewable Energy Laboratory “Best Research-Cell Efficiency Chart” (2019); www.nrel.gov/pv/cell-efficiency.html.

2. Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells