133 citations · 550 across the 15 of their papers we have counts for
6 papers · 1 filter
Probing defects in chemically synthesized ZnO nanostrucures by Positron Annihilation and Photoluminescence Spectroscopy
S K Chaudhuri, Manoranjan Ghosh, D Das +1
The present article describes the size induced changes in the structural arrangement of intrinsic defects present in chemically synthesized ZnO nanoparticles of various sizes. Rout…
Electric field induced reversible control of visible photoluminescence from ZnO nanoparticles
Manoranjan Ghosh, A. K. Raychaudhuri
Reversible control of the photoluminescence of ZnO occurring in the visible range, has been achieved by application of a few volts (< 5V) to a device consisting of nanostructured Z…
Structure and optical properties of Cd substituted ZnO (Zn1-xCdxO) nanostructures synthesized by high pressure solution route
Manoranjan Ghosh, A. K. Raychaudhuri
We report synthesis of Cd substituted ZnO nanostructures (Zn1-xCdxO with x upto \approx .09) by high pressure solution growth method. The synthesized nanostructures comprise of nan…
Role of ambient air on photoluminescence and electrical conductivity of assembly of ZnO Nanoparticles
Manoranjan Ghosh, R. S. Ningthoujam, R. K. Vatsa +5
Effect of ambient gases on photoluminescence (PL) and electrical conductivity of films prepared using ZnO nanoparticles (NPs) have been investigated. It is observed that NPs of siz…
Phonon dynamics of Zn(Mg,Cd)O alloy nanostructures and their phase segregation
Manoranjan Ghosh, Nita Dilawar, A. K. Bandyopadhyay +1
In this paper we report phonon dynamics in chemically synthesized Zn1- xMgxO (0\leqx\leq0.07) and Zn1-yCdyO (0\leqy\leq0.03) alloy nanostructures of sizes ~10 nm using non-resonant…
Structural and Optical properties of Zn(1-x)MgxO nanocrystals obtained by low temperature method
Manoranjan Ghosh, A. K. Raychaudhuri
In this paper we report structural and optical properties of Magnesium substituted Zinc Oxide (Zn1-xMgxO) nanocrystals (~10-12nm) synthesized by low temperature route. In the low t…