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Title: Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene

Abstract

Two-dimensional (2D) organic-inorganic (hybrid) perovskites are considered promising candidates to replace conventional three-dimensional (3D) perovskites for solar cell applications as they have good resistance against moisture and UV light. However, the use of 2D perovskite is associated with a significant decrease in power efficiency resulting from their low photogenerated charge carrier density and poor charge transport. To improve power efficiency in 2D perovskites, highly crystalline films (near-single-crystal quality) of 2D perovskite need to be synthesized where the alignment of the inorganic perovskite components is controlled to have vertical alignment with respect to the contacts to improve charge transport. In this work, we explored strategies to overcome this limitation by integrating 2D perovskite with single-walled carbon nanotubes or graphene to enable more efficient extraction of charge carriers toward electric contacts. Finally, longer carrier lifetimes were achieved after the incorporation of the carbon nanostructures in the films, and at the cell level, power efficiency increased by 2-fold.

Authors:
 [1]; ORCiD logo [1];  [2];  [1];  [3]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Massachusetts, Amherst, MA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); CONACYT-SENER; US Department of the Navy, Office of Naval Research (ONR)
OSTI Identifier:
1616981
Grant/Contract Number:  
AC02-05CH11231; N00014-15-1-2244
Resource Type:
Accepted Manuscript
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; two dimensional materials; charge transport; solar cells; carbon nanotubes; perovskites

Citation Formats

Solis de la Fuente, Mauricio, Kaur, Sumanjeet, Hu, Qin, Barnard, Edward S., Dudenas, Peter, Kusoglu, Ahmet, Russell, Thomas P., Urban, Jeffrey J., and Prasher, Ravi. Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene. United States: N. p., 2019. Web. https://doi.org/10.1021/acsenergylett.9b01821.
Solis de la Fuente, Mauricio, Kaur, Sumanjeet, Hu, Qin, Barnard, Edward S., Dudenas, Peter, Kusoglu, Ahmet, Russell, Thomas P., Urban, Jeffrey J., & Prasher, Ravi. Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene. United States. https://doi.org/10.1021/acsenergylett.9b01821
Solis de la Fuente, Mauricio, Kaur, Sumanjeet, Hu, Qin, Barnard, Edward S., Dudenas, Peter, Kusoglu, Ahmet, Russell, Thomas P., Urban, Jeffrey J., and Prasher, Ravi. Tue . "Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene". United States. https://doi.org/10.1021/acsenergylett.9b01821. https://www.osti.gov/servlets/purl/1616981.
@article{osti_1616981,
title = {Enhanced Charge Carrier Transport in 2D Perovskites by Incorporating Single-Walled Carbon Nanotubes or Graphene},
author = {Solis de la Fuente, Mauricio and Kaur, Sumanjeet and Hu, Qin and Barnard, Edward S. and Dudenas, Peter and Kusoglu, Ahmet and Russell, Thomas P. and Urban, Jeffrey J. and Prasher, Ravi},
abstractNote = {Two-dimensional (2D) organic-inorganic (hybrid) perovskites are considered promising candidates to replace conventional three-dimensional (3D) perovskites for solar cell applications as they have good resistance against moisture and UV light. However, the use of 2D perovskite is associated with a significant decrease in power efficiency resulting from their low photogenerated charge carrier density and poor charge transport. To improve power efficiency in 2D perovskites, highly crystalline films (near-single-crystal quality) of 2D perovskite need to be synthesized where the alignment of the inorganic perovskite components is controlled to have vertical alignment with respect to the contacts to improve charge transport. In this work, we explored strategies to overcome this limitation by integrating 2D perovskite with single-walled carbon nanotubes or graphene to enable more efficient extraction of charge carriers toward electric contacts. Finally, longer carrier lifetimes were achieved after the incorporation of the carbon nanostructures in the films, and at the cell level, power efficiency increased by 2-fold.},
doi = {10.1021/acsenergylett.9b01821},
journal = {ACS Energy Letters},
number = 1,
volume = 5,
place = {United States},
year = {2019},
month = {12}
}

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