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A facile synthesis of Au-nanoparticles decorated PbI2 single crystalline nanosheets for optoelectronic device applications

Shkir, Mohd and Yahia, IS and Ganesh, V and Bitla, Y and Ashraf, IM and Kaushik, Ajeet and AlFaify, S (2018) A facile synthesis of Au-nanoparticles decorated PbI2 single crystalline nanosheets for optoelectronic device applications. In: SCIENTIFIC REPORTS, 8 .

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Official URL: http://dx.doi.org/10.1038/s41598-018-32038-5

Abstract

This research communication presents a rapid and facile microwave-assisted synthesis of single crystalline nanosheets (SCNSs) of hexagonal lead iodide (PbI2) decorated with Au nanoparticles, a potential optoelectronics material. Homogeneous low dimensional AuNP decoration in PbI2 resulted in a new absorption band at similar to 604 nm and a shift in band gap from 3.23 to 3.00 eV. The significant enhancement of photoluminescent (PL) intensity observed in the AuNP-PbI2 SCNSs is attributed to the coupling of the localized surface plasmon resonanzce of AuNP leading to improved excitation and emission rates of PbI2-SCNSs in the region of the localized electromagnetic field. The Au-PbI2 SCNSs display a compelling increment in photoconductivity, and its fabricated photodetector showed a stable and switchable photo-response. Due to ease of synthesis and enhanced photoconductivity along with appealing PL features, Au-PbI2 SCNS has the potential to be used as a material of choice when fabricating an optoelectronic devices of high performance.

Item Type: Journal Article
Additional Information: Copy right for this article belong to NATURE PUBLISHING GROUP
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 03 Oct 2018 14:03
Last Modified: 21 Feb 2019 10:42
URI: http://eprints.iisc.ac.in/id/eprint/60800

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