Sol-gel and Hydrothermal Synthesis of Metal Oxides Precursors for CuMO2 (M = trivalent metal) type Delafossite Oxides

Podder, Susmita and Jai, Prakash (2018) Sol-gel and Hydrothermal Synthesis of Metal Oxides Precursors for CuMO2 (M = trivalent metal) type Delafossite Oxides. Masters thesis, Indian Institute of Technology, Hyderabad.

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Abstract

The ternary p-type transparent conducting oxides CuMO2 (M = trivalent metals) with delafossite type structures are essential for a variety of applications such as liquid crystal displays, touch screens, gas sensors, thermoelectric devices, solar cells, dilute magnetic semiconductors, lightemitting diodes, etc., In this work, we have attempted to synthesize four ternary delafossite oxides namely CuFeO2, CuInO2, CuScO2, and CuYO2 using a low cost and relatively lower temperature method. The precursors for all these four compounds were synthesized via the sol-gel method. The powder X-ray diffraction technique was used for the phase identification. The CuFeO2 and CuScO2 phases were obtained by annealing of the precursors obtained by the sol-gel method in the air. However, other secondary phases were also observed along with the target phases, CuFeO2 and CuScO2. The CuInO2 and CuYO2 phases could not be stabilized using our reaction conditions. The Hydrothermal method has also been used for the synthesis of CuInO2 and CuYO2, but only mixed binary oxides were formed.

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IITH Creators:
IITH CreatorsORCiD
Jai, PrakashUNSPECIFIED
Item Type: Thesis (Masters)
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 24 May 2018 11:33
Last Modified: 24 May 2018 11:33
URI: http://raiithold.iith.ac.in/id/eprint/3953
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