Stabilizing Ultrathin CsPbBr3 Nanoplatelet Films for Deterministic Strong Light-Matter Coupling

Odewale, Elizabeth O.; Boateng, Isaac D.; Rury, Aaron S.

doi:10.1021/acs.jpclett.5c03989

Title: Stabilizing Ultrathin CsPbBr₃ Nanoplatelet Films for Deterministic Strong Light-Matter Coupling

Journal Article · Wed Feb 25 00:00:00 UTC 2026 · Journal of Physical Chemistry Letters

DOI: https://doi.org/10.1021/acs.jpclett.5c03989 · OSTI ID:3022856

^[1]; Boateng, Isaac D. ^[1];

^[1]

Wayne State Univ., Detroit, MI (United States)

While the excitons in perovskite nanomaterials possess interesting properties central to their use in optoelectronic technologies, their instability limits real world applicability. In this study, we describe a method to stabilize the structures of cesium lead bromide (CsPbBr₃) nanoplatelets (NPLs) in spin-casted films. We apply this method to design, fabricate, and characterize exciton cavity polaritons formed from these nanomaterials. These studies show that we can form exciton cavity polaritons from CsPbBr₃ in precisely designed Fabry−Perot microresonators and suggest that the structures of these materials can be stabilized toward their use in other solution-processed optoelectronic devices.

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Research Organization:: Wayne State Univ., Detroit, MI (United States)

Sponsoring Organization:: Office of Naval Research; USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0022134

OSTI ID:: 3022856

Journal Information:: Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Journal Issue: 10 Vol. 17; ISSN 1948-7185

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Stabilizing Ultrathin CsPbBr₃ Nanoplatelet Films for Deterministic Strong Light-Matter Coupling