Perovskite solar cells (PSCs) are highly promising, but they are mechanically fragile, composed of layers with mismatches in thermal expansion coefficients, and known to decompose in the presence of heat and moisture. Here we show the development of a glass–glass encapsulation methodology for PSCs that enables them to pass the industry standard IEC 61646 damp heat and thermal cycling tests. It is important to select a thermally stable perovskite composition to withstand the encapsulation process at 150 °C and design a cell that minimizes metal diffusion. Moreover, the package needs an edge seal to effectively prevent moisture ingress and an inert encapsulant with an appropriate elastic modulus to hold the package together while allowing for compliance during temperature fluctuations. This work demonstrates that industrially relevant encapsulation techniques have the potential to enable the commercial viability of PSCs.
Cheacharoen, Rongrong, Boyd, Caleb C., Burkhard, George F., Leijtens, Tomas, Raiford, James A., Bush, Kevin A., Bent, Stacey F., & McGehee, Michael D. (2018). Encapsulating perovskite solar cells to withstand damp heat and thermal cycling. Sustainable Energy & Fuels, 2(11). https://doi.org/10.1039/c8se00250a
Cheacharoen, Rongrong, Boyd, Caleb C., Burkhard, George F., et al., "Encapsulating perovskite solar cells to withstand damp heat and thermal cycling," Sustainable Energy & Fuels 2, no. 11 (2018), https://doi.org/10.1039/c8se00250a
@article{osti_1613498,
author = {Cheacharoen, Rongrong and Boyd, Caleb C. and Burkhard, George F. and Leijtens, Tomas and Raiford, James A. and Bush, Kevin A. and Bent, Stacey F. and McGehee, Michael D.},
title = {Encapsulating perovskite solar cells to withstand damp heat and thermal cycling},
annote = {Perovskite solar cells (PSCs) are highly promising, but they are mechanically fragile, composed of layers with mismatches in thermal expansion coefficients, and known to decompose in the presence of heat and moisture. Here we show the development of a glass–glass encapsulation methodology for PSCs that enables them to pass the industry standard IEC 61646 damp heat and thermal cycling tests. It is important to select a thermally stable perovskite composition to withstand the encapsulation process at 150 °C and design a cell that minimizes metal diffusion. Moreover, the package needs an edge seal to effectively prevent moisture ingress and an inert encapsulant with an appropriate elastic modulus to hold the package together while allowing for compliance during temperature fluctuations. This work demonstrates that industrially relevant encapsulation techniques have the potential to enable the commercial viability of PSCs.},
doi = {10.1039/c8se00250a},
url = {https://www.osti.gov/biblio/1613498},
journal = {Sustainable Energy & Fuels},
issn = {ISSN 2398-4902},
number = {11},
volume = {2},
place = {United States},
publisher = {Royal Society of Chemistry},
year = {2018},
month = {07}}
National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0008154
OSTI ID:
1613498
Alternate ID(s):
OSTI ID: 1459675
Journal Information:
Sustainable Energy & Fuels, Journal Name: Sustainable Energy & Fuels Journal Issue: 11 Vol. 2; ISSN 2398-4902