High-Performance Flexible Perovskite Solar Cells on Ultrathin Glass: Implications of the TCO
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States). Dept. of Electrical Computer and Energy Engineering
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Washington, Seattle, WA (United States). Dept. of Electrical Engineering
- Univ. of Colorado, Boulder, CO (United States). Dept. of Electrical, Computer, and Energy Engineering
- Univ. of Colorado, Boulder, CO (United States). Dept. of Electrical, Computer, and Energy Engineering, Renewable and Sustainable Energy Inst.
- Corning Research and Development Corporation, NY (United States)
- Indian Association for the Cultivation of Science, Kolkata (India). Solid State Physics Dept.
For halide perovskite solar cells (PSCs) to fulfill their vast potential for combining low-cost, high efficiency, and high throughput production they must be scaled using a truly transformative method, such as roll-to-roll processing. Bringing this reality closer to fruition, the present work demonstrates flexible perovskite solar cells with 18.1% power conversion efficiency on flexible Willow Glass substrates. Here, we highlight the importance of the transparent conductive oxide (TCO) layers on device performance by studying various TCOs. And while tin-doped indium oxide (ITO) and indium zinc oxide (IZO) based PSC devices demonstrate high photovoltaic performances, aluminum-doped zinc oxide (AZO) based devices underperformed in all device parameters. Analysis of X-ray photoemission spectroscopy data shows that the stoichiometry of the perovskite film surface changes dramatically when it is fabricated on AZO, demonstrating the importance of the substrate in perovskite film formation.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- Grant/Contract Number:
- AC36-08GO28308; SC00014664
- OSTI ID:
- 1399083
- Report Number(s):
- NREL/JA-5K00-70129
- Journal Information:
- Journal of Physical Chemistry Letters, Vol. 8, Issue 19; ISSN 1948-7185
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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