Presentation
1 August 2021 Interlayer triplet energy transfer in Dion-Jacobson 2-dimensional lead halide perovskites containing naphthalene-diammonium cations
YunHui L. Lin, Justin C. Johnson
Author Affiliations +
Abstract
While interlayer triplet energy transfer has been studied in Ruddlesden-Popper 2D perovskites containing monovalent naphthalene cations, the photophysical properties of their Dion-Jacobson analogue have not been reported. Here we examine interlayer energy transfer in a series of mixed-halide Dion-Jacobson 2D perovskites containing divalent naphthalene cations. We find that sensitized phosphorescence in these compounds is dominated by naphthalene triplet excimer emission, but when the lead halide exciton is tuned near resonance with the triplet of naphthalene, emission from the naphthalene triplet monomer competes with triplet excimer formation. Interlayer energy transfer in these compounds is further supported by ultrafast transient absorption spectroscopy.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
YunHui L. Lin and Justin C. Johnson "Interlayer triplet energy transfer in Dion-Jacobson 2-dimensional lead halide perovskites containing naphthalene-diammonium cations", Proc. SPIE 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX, 117990Q (1 August 2021); https://doi.org/10.1117/12.2594289
Advertisement
Advertisement
KEYWORDS
Perovskite

Energy transfer

Lead

Excimers

Phosphorescence

Heterojunctions

Optoelectronics

Back to Top