133 citations · 364 across the 9 of their papers we have counts for
9 papers
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…
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…
Single step precursor free synthesis and characterisation of stable Au nanochains by laser ablation
Rajesh Kumar Neogy, Rajib Nath, Gautam Basu +1
In this paper we report a simple one step and one-pot synthesis of stable assembly of Au nanoparticles (diameter 8-10nm) into chains in an Ethylene Glycol medium, using only a soli…
Field induced reversible control of visible luminescence in ZnO nanostructures
Manoranjan Ghosh, A. K. Raychaudhuri
In this work, a reversible control over the visible luminescence of phosphor ZnO is achieved by the application of a few volts (<5V) to nanostructured ZnO film sandwiched between I…