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.
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.
Actions (login required)
 |
View Item |
Altmetric
Altmetric