arXiv subjects

Hareesh Dondapati

Publications and source records attributed to Hareesh Dondapati.

3 recordsLinked to original sources

arXiv2015

Al-doped ZnO aligned nanorod arrays significant implications for optic and opto-electronic Applications

We investigated the optical and optoelectronic properties of vertically aligned Al:ZnO nanorod arrays synthesized by the hydrothermal technique at a considerably low temperature on a sputtered Al-ZnO seed layer. The nanorod arrays maintained remarkable alignment along the c-axis over a large area. The seed layers and nanorod arrays showed various optical band gaps. Investigation of the optoelectronic properties of nanorod arrays on

cond-mat.mtrl-sci↗

arXiv2015

Enhanced photocurrent in solution processed electronically coupled CdSe nanocrystals thin films

We have demonstrated the fabrication of highly continuous and smooth CdSe semiconductor films containing self-assembled nanocrystals (NCs) using a simple, low cost solution-processed deposition technique. The impact of thermal annealing and ethanedithiol (EDT) treatment on oleate capped CdSe NCs films is illustrated. Post deposition EDT treatment enhances strong electron coupling between NCs by reducing the inter-particle distance, which enhances four orders of magnitude of photocurrent in the pn-device. Mild thermal annealing of NC films cause large redshift and significant broadening. Our findings suggest that NCs with short-range organic ligands are suitable for high-performance Thin-Film-Transistors and next generation high-efficiency photovoltaics.

cond-mat.mtrl-sci↗

arXiv2015

High-performance chemical-bath deposited CdS thin-film transistors with ZrO2 gate dielectric

We demonstrate high performance chemical bath deposited CdS thin-film transistors TFTs using atomic layer deposited ZrO2 based high-k gate dielectric material.

cond-mat.mtrl-sci↗