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Title: Room Temperature Processing of Inorganic Perovskite Films to Enable Flexible Solar Cells

Journal Article · · iScience
 [1];  [1];  [1]; ORCiD logo [2]
  1. Michigan State Univ., East Lansing, MI (United States). Dept. of Chemical Engineering and Materials Science
  2. Michigan State Univ., East Lansing, MI (United States). Dept. of Chemical Engineering and Materials Science; Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy

Inorganic lead halide perovskite materials have attracted great attention recently due to their potential for greater thermal stability compared with hybrid organic perovskites. However, the high processing temperature to convert from the non-perovskite phase to the cubic perovskite phase in many of these systems has limited their application in flexible optoelectronic devices. Here, we report a room temperature processed inorganic perovskite solar cell (PSC) based on CsPbI2Br as the light harvesting layer. By combining this composition with key precursor solvents, we show that inorganic perovskite films can be prepared by the vacuum-assist method under room temperature conditions in air. Unencapsulated devices achieved power conversion efficiency up to 8.67% when measured under 1-sun irradiation. Exploiting this room temperature process, flexible inorganic PSCs based on an inorganic metal halide perovskite material are demonstrated.

Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010472
OSTI ID:
1466414
Alternate ID(s):
OSTI ID: 1623677
Journal Information:
iScience, Vol. 6, Issue C; ISSN 2589-0042
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells journal September 2019
All‐Inorganic CsPbX 3 Perovskite Solar Cells: Progress and Prospects journal August 2019
Simultaneous Improved Performance and Thermal Stability of Planar Metal Ion Incorporated CsPbI 2 Br All‐Inorganic Perovskite Solar Cells Based on MgZnO Nanocrystalline Electron Transporting Layer journal December 2019
Anorganische CsPbX 3 ‐Perowskit‐Solarzellen: Fortschritte und Perspektiven journal August 2019

Figures / Tables (12)