Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137085
Title: Superior performance of silver bismuth iodide photovoltaics fabricated via dynamic hot-casting method under ambient conditions
Authors: Ghosh, Biplab
Wu, Bo
Guo, Xintong
Harikesh, Padinhare Cholakkal
John, Rohit Abraham
Baikie, Tom
Arramel
Wee, A. T. S.
Guet, Claude
Sum, Tze Chien
Mhaisalkar, Subodh
Mathews, Nripan
Keywords: Engineering::Materials::Energy materials
Issue Date: 2018
Source: Ghosh, B., Wu, B., Guo, X., Harikesh, P. C., John, R. A., Baikie, T., . . . Mathews, N. (2018). Superior performance of silver bismuth iodide photovoltaics fabricated via dynamic hot‐casting method under ambient conditions. Advanced Energy Materials, 8(33), 1802051-. doi:10.1002/aenm.201802051
Journal: Advanced Energy Materials
Abstract: Bismuth-based ternary halides have recently gained a lot of attention as lead-free perovskite materials. However, photovoltaic performances of these devices remain poor, mostly due to their low-dimensional crystal structure and large bandgap. Here, a dynamic hot casting technique to fabricate silver bismuth iodide-based perovskite solar cells under an ambient atmosphere with power conversion efficiencies above 2.5% is demonstrated. Silver bismuth iodides are 3D analogs of complex ternary bismuth halides with a suitable bandgap for a single junction solar cell. As far as it is known, these results represent the highest efficiency for solution processed air-stable lead-free perovskite solar cells. The enhanced solar cell performance via this dynamic hot casting technique can be attributed to long carrier lifetimes, micrometer-sized crystalline grains, and pinhole free thin-film formation with uniform morphology. This work provides a new direction for fabrication of solution-processed lead-free perovskite solar cells with a rapid fabrication strategy irrespective of the processing environment.
URI: https://hdl.handle.net/10356/137085
ISSN: 1614-6832
DOI: 10.1002/aenm.201802051
Rights: This is the peer reviewed version of the following article: Ghosh, B., Wu, B., Guo, X., Harikesh, P. C., John, R. A., Baikie, T., . . . Mathews, N. (2018). Superior performance of silver bismuth iodide photovoltaics fabricated via dynamic hot‐casting method under ambient conditions. Advanced Energy Materials, 8(33), 1802051-, which has been published in final form at https://doi.org/10.1002/aenm.201802051. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles

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