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Carbon Electrode with Sputtered Au Coating for Efficient and Stable Perovskite Solar Cells

Journal Article · · ACS Applied Materials and Interfaces
 [1];  [2];  [2];  [2];  [2];  [3];  [4];  [5]
  1. University of Alabama, Tuscaloosa, AL (United States); The University of Alabama, and Arizona State University
  2. University of Alabama, Tuscaloosa, AL (United States)
  3. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  4. National Renewable Energy Laboratory (NREL), Golden, CO (United States); University of Colorado, Boulder, CO (United States)
  5. University of Alabama, Tuscaloosa, AL (United States); Arizona State University, Tempe, AZ (United States)

Halide perovskite solar cells (PSCs) represent a low-cost and high-efficiency solar technology. However, most of the highly efficient PSCs need a noble electrode, such as Au, through thermal evaporation. Here it is reported that a sputtered Au electrode on a PSC could damage the organic hole transport layer (HTL) and the perovskite layer. Here, we report a simple, yet effective sputtered gold nanoparticle decorated carbon electrode to fabricate efficient and stable planar PSCs. The sputtered Au layer on the doctor-bladed coated carbon electrode can be directly applied to the perovskite semicells by mechanical stacking. By optimizing the gold thickness, a power conversion efficiency (PCE) of 16.87% was obtained for the composite electrode-based PSC, while the reference device recorded a PCE of 12.38%. The composite electrode-based device demonstrated 96% performance retention after being stored under humid conditions (50-60%) without encapsulation for ~100 h. This demonstrates a promising pathway toward the commercialization of large-scale manufacturable sputtered electrodes for the PSC solar module.

Research Organization:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
EE0009833
OSTI ID:
1961860
Alternate ID(s):
OSTI ID: 1969546
Journal Information:
ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 12 Vol. 15; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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