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Title: High efficiency perovskite quantum dot solar cells with charge separating heterostructure

Abstract

Metal halide perovskite semiconductors possess outstanding characteristics for optoelectronic applications including but not limited to photovoltaics. Low-dimensional and nanostructured motifs impart added functionality which can be exploited further. Moreover, wider cation composition tunability and tunable surface ligand properties of colloidal quantum dot (QD) perovskites now enable unprecedented device architectures which differ from thin-film perovskites fabricated from solvated molecular precursors. In this work, using layer-by-layer deposition of perovskite QDs, we demonstrate solar cells with abrupt compositional changes throughout the perovskite film. We utilize this ability to abruptly control composition to create an internal heterojunction that facilitates charge separation at the internal interface leading to improved photocarrier harvesting. We show how the photovoltaic performance depends upon the heterojunction position, as well as the composition of each component, and we describe an architecture that greatly improves the performance of perovskite QD photovoltaics.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [2];  [2]; ORCiD logo [2];  [3];  [4]; ORCiD logo [4];  [2]; ORCiD logo [2]
  1. Nankai Univ., Tianjin (China); National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Warren Wilson College, Asheville, NC (United States)
  4. Nankai Univ., Tianjin (China)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
U.S. Department of Defense (DOD); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1542760
Report Number(s):
NREL/JA-5900-73275
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; quantum dots; solar cells

Citation Formats

Zhao, Qian, Hazarika, Abhijit, Chen, Xihan, Harvey, Steve P., Larson, Bryon W., Teeter, Glenn R., Liu, Jun, Song, Tao, Xiao, Chuanxiao, Shaw, Liam, Zhang, Minghui, Li, Guoran, Beard, Matthew C., and Luther, Joseph M. High efficiency perovskite quantum dot solar cells with charge separating heterostructure. United States: N. p., 2019. Web. doi:10.1038/s41467-019-10856-z.
Zhao, Qian, Hazarika, Abhijit, Chen, Xihan, Harvey, Steve P., Larson, Bryon W., Teeter, Glenn R., Liu, Jun, Song, Tao, Xiao, Chuanxiao, Shaw, Liam, Zhang, Minghui, Li, Guoran, Beard, Matthew C., & Luther, Joseph M. High efficiency perovskite quantum dot solar cells with charge separating heterostructure. United States. doi:10.1038/s41467-019-10856-z.
Zhao, Qian, Hazarika, Abhijit, Chen, Xihan, Harvey, Steve P., Larson, Bryon W., Teeter, Glenn R., Liu, Jun, Song, Tao, Xiao, Chuanxiao, Shaw, Liam, Zhang, Minghui, Li, Guoran, Beard, Matthew C., and Luther, Joseph M. Fri . "High efficiency perovskite quantum dot solar cells with charge separating heterostructure". United States. doi:10.1038/s41467-019-10856-z. https://www.osti.gov/servlets/purl/1542760.
@article{osti_1542760,
title = {High efficiency perovskite quantum dot solar cells with charge separating heterostructure},
author = {Zhao, Qian and Hazarika, Abhijit and Chen, Xihan and Harvey, Steve P. and Larson, Bryon W. and Teeter, Glenn R. and Liu, Jun and Song, Tao and Xiao, Chuanxiao and Shaw, Liam and Zhang, Minghui and Li, Guoran and Beard, Matthew C. and Luther, Joseph M.},
abstractNote = {Metal halide perovskite semiconductors possess outstanding characteristics for optoelectronic applications including but not limited to photovoltaics. Low-dimensional and nanostructured motifs impart added functionality which can be exploited further. Moreover, wider cation composition tunability and tunable surface ligand properties of colloidal quantum dot (QD) perovskites now enable unprecedented device architectures which differ from thin-film perovskites fabricated from solvated molecular precursors. In this work, using layer-by-layer deposition of perovskite QDs, we demonstrate solar cells with abrupt compositional changes throughout the perovskite film. We utilize this ability to abruptly control composition to create an internal heterojunction that facilitates charge separation at the internal interface leading to improved photocarrier harvesting. We show how the photovoltaic performance depends upon the heterojunction position, as well as the composition of each component, and we describe an architecture that greatly improves the performance of perovskite QD photovoltaics.},
doi = {10.1038/s41467-019-10856-z},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {2019},
month = {6}
}

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Works referenced in this record:

Bulk heterojunction solar cells with internal quantum efficiency approaching 100%
journal, April 2009

  • Park, Sung Heum; Roy, Anshuman; Beaupré, Serge
  • Nature Photonics, Vol. 3, Issue 5, p. 297-302
  • DOI: 10.1038/nphoton.2009.69