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Curtailing Perovskite Processing Limitations via Lamination at the Perovskite/Perovskite Interface

Journal Article · · ACS Energy Letters
Standard layer-by-layer solution processing methods constrain lead-halide perovskite device architectures. The layer below the perovskite must be robust to the strong organic solvents used to form the perovskite while the layer above has a limited thermal budget and must be processed in nonpolar solvents to prevent perovskite degradation. To circumvent these limitations, we developed a procedure where two transparent conductive oxide/transport material/perovskite half stacks are independently fabricated and then laminated together at the perovskite/perovskite interface. Using ultraviolet-visible absorption spectroscopy, external quantum efficiency, X-ray diffraction, and time-resolved photoluminesence spectroscopy, we show that this procedure improves photovoltaic properties of the perovskite layer. Applying this procedure, semitransparent devices employing two high-temperature oxide transport layers were fabricated, which realized an average efficiency of 9.6% (maximum: 10.6%) despite series resistance limitations from the substrate design. Overall, the developed lamination procedure curtails processing constraints, enables new device designs, and affords new opportunities for optimization.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1437221
Report Number(s):
NREL/JA--5K00-71071
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 5 Vol. 3; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures journal December 2019
PEDOT:PSS monolayers to enhance the hole extraction and stability of perovskite solar cells journal January 2018
Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures text January 2020

Figures / Tables (4)


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