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Title: Quantum Confinement Effects in Organic Lead Tribromide Perovskite Nanoparticles
Authors: Kumar, Prashant
Muthu, Chinnadurai
Nair, Vijayakumar C.
Narayan, K. S.
Keywords: Chemistry
Materials Science
Organometal Halide Perovskite
Inorganic Perovskites
Size Dependence
Issue Date: 2016
Publisher: American Chemical Society
Citation: Kumar, P.; Muthu, C.; Nair, V. C.; Narayan, K. S., Quantum Confinement Effects in Organic Lead Tribromide Perovskite Nanoparticles. Journal of Physical Chemistry C 2016, 120 (32), 18333-18339
Journal of Physical Chemistry C
Abstract: The optical and electronic properties of nanoparticles/nanocrystals (NC) of methylammonium lead tribromide perovskite (MAPbBr(3)) have been studied in detail. We observe the effect of quantum confinement in particles of an average diameter of similar to 6 nm and smaller, in the form of an increase in excitonic nature with decrease in particle size. The differences in the photophysical properties in bulk and NC forms of MAPbBr(3) are clearly observed in the temperature dependent measurements, and provide insight into the length scales prevalent in this system. We demonstrate devices consisting of active layers of NC in conjunction with low band gap polymer semiconductors which exhibit the dual functionality of a light emitting diode in the forward bias and a photodetector in the reverse bias.graphic.
Description: Restricted Access
ISSN: 1932-7447
Appears in Collections:Research Articles (Narayan K. S.)

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