133 citations · 550 across the 15 of their papers we have counts for
15 papers
Characteristics of Al/Ge Schottky and Ohmic contacts at low temperatures
Shreyas Pitale, Manoranjan Ghosh, S. G. Singh +3
Schottky barrier contact has been fabricated by thermal deposition of Al on (100) Ge (impurity concentration~1010/cm3 at 80K) that shows extrinsic p-type to intrinsic n-type transi…
Fabrication of p+ contact by thermally induced solid state regrowth of Al on p-type Ge crystal
Manoranjan Ghosh, Shreyas Pitale, S. G. Singh +6
Formation of p+ contact on Germanium is important for applications in diode detector and other electronic devices. In this work, thermally deposited Al on Ge crystal is annealed at…
Impurity concentration dependent electrical conduction in germanium crystal at low temperatures
Manoranjan Ghosh, Shreyas Pitale, S. G. Singh +2
Germanium single crystal having 45 mm diameter and 100 mm length of 7N+ purity has been grown by Czochralski method. Structural quality of the crystal has been characterized by Lau…
Effect of size and aspect ratio on structural parameters and evidence of shape transition in zinc oxide nanostructures
Manoranjan Ghosh, Debjani Karmakar, S. Basu +4
Dependence of structural parameters on the size of nanoparticles is a topic of general interest where the effect of shape is often neglected. We report a comprehensive study on siz…
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…