Homogenized halides and alkali cation segregation in alloyed organic-inorganic perovskites-Reference-Cited by-同舟云学术

Homogenized halides and alkali cation segregation in alloyed organic-inorganic perovskites

Published:2019-02-08 Issue:6427 Volume:363 Page:627-631
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Correa-Baena Juan-Pablo¹²^ORCID,Luo Yanqi³⁴^ORCID,Brenner Thomas M.³⁴^ORCID,Snaider Jordan⁵^ORCID,Sun Shijing¹,Li Xueying⁴⁶,Jensen Mallory A.¹^ORCID,Hartono Noor Titan Putri¹^ORCID,Nienhaus Lea¹^ORCID,Wieghold Sarah¹^ORCID,Poindexter Jeremy R.¹^ORCID,Wang Shen³⁴^ORCID,Meng Ying Shirley³⁴^ORCID,Wang Ti⁵^ORCID,Lai Barry⁷^ORCID,Holt Martin V.⁸,Cai Zhonghou⁷,Bawendi Moungi G.¹^ORCID,Huang Libai⁵^ORCID,Buonassisi Tonio¹^ORCID,Fenning David P.³⁴⁶^ORCID

Affiliation:

1. Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.

3. Department of Nanoengineering, University of California, San Diego, La Jolla, CA 92093, USA.

4. Sustainable Power and Energy Center, University of California, San Diego, La Jolla, CA 92093, USA.

5. Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.

6. Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA.

7. Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA.

8. Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL 60439, USA.

Abstract

Advantages of adding just enough alkalis For organic-inorganic hybrid solar cells, addition of cesium or rubidium cations can improve power conversion efficiency. Correa-Baena et al. used nanoscale x-ray fluorescence imaging to show that the addition of metal cations at low concentrations homogenized the distribution of bromide and iodide anions and also increased charge-carrier lifetimes. However, at high concentrations, aggregation and cluster formation led to increased charge recombination. Science , this issue p. 627

Funder

U.S. Department of Energy

California Energy Commission

Hellman Foundation

Skoltech-MIT

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference34 articles.

1. Compositional engineering of perovskite materials for high-performance solar cells

2. Efficient luminescent solar cells based on tailored mixed-cation perovskites