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Proceedings Paper

Two-dimensional inorganic-organic perovskite hexagonal nanosheets: growth and mechanism
Author(s): Suman Shakya; G. Vijaya Prakash
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Paper Abstract

In this era of novel technological materials, inorganic-organic (IO) materials has emerged as new class of materials for their application in photonic materials, miniaturized sensors, optoelectronic devices, non-linear optical apparatus by exploiting the properties of both constituents in a single entity. Here we present the formation and growth mechanism of two dimensional Inorganic-organic (IO) perovskite structures from anisotropically grown PbO hexagonal nanosheets, in three steps: Fabrication of hexagonal PbO nanosheets by the versatile bottom-up electrochemical deposition technique, iodinization of PbO into PbI2, followed by conversion of PbI2 into IO hybrid by the intercalation of organic moiety. A systematic and detailed structural study reveals that PbO nanosheet formation is more likely to result from an oriented attachment mechanism, in which the sheets formed by the reduction in surface area that happens during aggregation of small nanoparticle that each has a net dipole moment, which tends to form a self-assembled structure. Intercalation of organic moiety into the PbI2 layers yielded a selfassembled quantum-wells system of one of the IO hybrid, i.e. (C6H9C2H4NH3)2PbI4 (CHPI), sustaining the hexagonal shape.

Paper Details

Date Published: 16 March 2015
PDF: 6 pages
Proc. SPIE 9360, Organic Photonic Materials and Devices XVII, 93600N (16 March 2015); doi: 10.1117/12.2079179
Show Author Affiliations
Suman Shakya, Indian Institute of Technology Delhi (India)
G. Vijaya Prakash, Indian Institute of Technology Delhi (India)

Published in SPIE Proceedings Vol. 9360:
Organic Photonic Materials and Devices XVII
Christopher E. Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

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