Enhancing electron diffusion length in narrow-bandgap perovskites for efficient monolithic perovskite tandem solar cells

Zhibin Yang; Zhenhua Yu; Haotong Wei; Xun Xiao; Zhenyi Ni; Bo Chen; Yehao Deng; Severin N. Habisreutinger; Xihan Chen; Kang Wang; Jingjing Zhao; Peter N. Rudd; Joseph J. Berry; Matthew C. Beard; Jinsong Huang

doi:10.1038/s41467-019-12513-x

Nature Communications (Oct 2019)

Enhancing electron diffusion length in narrow-bandgap perovskites for efficient monolithic perovskite tandem solar cells

Zhibin Yang,
Zhenhua Yu,
Haotong Wei,
Xun Xiao,
Zhenyi Ni,
Bo Chen,
Yehao Deng,
Severin N. Habisreutinger,
Xihan Chen,
Kang Wang,
Jingjing Zhao,
Peter N. Rudd,
Joseph J. Berry,
Matthew C. Beard,
Jinsong Huang

Affiliations

Zhibin Yang: Department of Applied Physical Sciences, University of North Carolina
Zhenhua Yu: Department of Applied Physical Sciences, University of North Carolina
Haotong Wei: Department of Applied Physical Sciences, University of North Carolina
Xun Xiao: Department of Applied Physical Sciences, University of North Carolina
Zhenyi Ni: Department of Applied Physical Sciences, University of North Carolina
Bo Chen: Department of Applied Physical Sciences, University of North Carolina
Yehao Deng: Department of Applied Physical Sciences, University of North Carolina
Severin N. Habisreutinger: Chemistry & Nanoscience Center, National Renewable Energy Lab
Xihan Chen: Chemistry & Nanoscience Center, National Renewable Energy Lab
Kang Wang: Chemistry & Nanoscience Center, National Renewable Energy Lab
Jingjing Zhao: Department of Applied Physical Sciences, University of North Carolina
Peter N. Rudd: Department of Applied Physical Sciences, University of North Carolina
Joseph J. Berry: Chemistry & Nanoscience Center, National Renewable Energy Lab
Matthew C. Beard: Chemistry & Nanoscience Center, National Renewable Energy Lab
Jinsong Huang: Department of Applied Physical Sciences, University of North Carolina

DOI: https://doi.org/10.1038/s41467-019-12513-x
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 9

Abstract

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Tin-based perovskites possess the suitable narrow-bandgap for tandem solar cells but their short carrier diffusion lengths limit device efficiency. Here Yang et al. add cadmium ions to increase diffusion length to above 2 µm by reducing the background free hole concentration and electron trap density.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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