Two-dimensional inorganic-organic perovskite hexagonal nanosheets: growth and mechanism

Suman Shakya; G. Vijaya Prakash

doi:10.1117/12.2079179

16 March 2015 Two-dimensional inorganic-organic perovskite hexagonal nanosheets: growth and mechanism

Suman Shakya, G. Vijaya Prakash

Proceedings Volume 9360, Organic Photonic Materials and Devices XVII; 93600N (2015) https://doi.org/10.1117/12.2079179
Event: SPIE OPTO, 2015, San Francisco, California, United States

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.

Citation Download Citation

Suman Shakya and G. Vijaya Prakash "Two-dimensional inorganic-organic perovskite hexagonal nanosheets: growth and mechanism", Proc. SPIE 9360, Organic Photonic Materials and Devices XVII, 93600N (16 March 2015); https://doi.org/10.1117/12.2079179

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