Browsing Qazi Muhammad Humayun, Dr. by Author "qhumayun2@gmail.com"
Now showing items 1-6 of 6
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Area-selective ZnO thin film deposition on variable microgap electrodes and their impact on UV sensing
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr. (Hindawi Publishing Corporation, 2013)ZnO thin films were deposited on patterned gold electrodes using the sol-gel spin coating technique. Conventional photolithography process was used to obtain the variable microgaps of 30 and 43 μm in butterfly topology by ... -
A brief review of the current technologies used for the fabrication of metal-molecule-metal junction electrodes
Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr. (Scientific.Net, 2012-12)Fabrication techniques for Metal-molecule-metal junction electrodes suitable to study electron tunneling through metal junctions are reviewed. The applications of current technologies such as mechanical break junction, ... -
Parametric study and thickness evaluation of photoresist development for the formation of microgap electrodes using surface nanoprofiler
Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr. (Scientific.Net, 2012-12)A compact nanolaboratory on single chip is one of the challenging tasks for future reproductively of sensitive and selective lab-on-chip. This paper reports a simple and controllable technique for patterning microgap ... -
Selective growth of ZnO nanorods on microgap electrodes and their applications in UV sensors
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr.; Ahsanulhaq, Qurashi (Springer, 2014-01)Selective area growth of ZnO nanorods is accomplished on microgap electrodes (spacing of 6μm) by using a facile wet chemical etching process. The growth of ZnO nanorods on a selected area of microgap electrode is carried ... -
Structural, Optical, Electrical, and Photoresponse Properties of Postannealed Sn-Doped ZnO Nanorods
Qazi, Muhammad Humayun; Muhammad Khasif; Uda, Hashim (Hindawi Limited, 2013)Tin (Sn) doped ZnO nanorods were synthesized on glass substrate using a sol-gel method. The synthesized nanorods were postannealed at 150, 350, and 500∘ C. The surface morphologies of Sn-doped ZnO nanorods at different ... -
ZnO thin film deposition on butterfly shaped electrodes for ultravioletsensing applications
Qazi Muhammad, Humayun; Muhammad Kashif, Muhammad Faroow; Uda, Hashim, Prof. Dr. (Elsevier GmbH, 2013-12)ZnO thin film was deposited on patterned gold electrodes using sol-gel spin coating technique. Conven-tional photo-lithography with wet etching process was used to create butterfly shaped 13-m gap fromzero gap chrome mask. ...