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Browsing by Subject "ZnO"

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Enhanced gas sensing properties of IZO thin films using SILAR

Soltabayev, Baktiyar; Mentbayeva, Almagul; Çağırtekin, Ali Orkun; Acar, Selim (The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries, 2020-08)

In the last decades, resistive gas sensors based on semiconductor oxides have been the topic of interest for a long time due to their high sensitivity to both oxidizing and reducing gases. These sensors meet the main market ...
Estimation of carrier life time from intrinsic photoluminescence of ZnO

Bhowmick, M.; Ullrich, B.; X i, H.; Flores, D.A. (Nazarbayev University, 2014)

Comprehensive knowledge of the optical properties, particularly of the room temperature (RT) photoluminescence (PL), of ZnO is essential for the future employment of this wideband gap (~3.3 eV at 300 K) II-VI compound ...
Hydrothermal Low-cost Synthesis of ZnO-GO Nanocomposites

Kedruk, Y.Y.; Alpysbaiuly, N.; Gritsenko, L.V.; Abdullin, Kh.A. (The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries, 2020-08)

One of the best known multifunctional semiconductor oxide materials is zinc oxide (ZnO). The wide band gap, high binding energy of exciton, radiation resistance, and high chemical stability make it a promising material for ...
Photoluminescence lineshape of ZnO

Ullrich, Bruno; Singh, Akhilesh K.; Bhowmick, Mithun; Barik, Puspendu; Ariza-Flores, David; Xi, Haowen; Tomm, Jens W. (American Institute of Physics, 2014)

The merger of the absorption coefficient dispersion, retrieved from transmission by the modified Urbach rule introduced by Ullrich and Bouchenaki [Jpn. J. Appl. Phys. 30, L1285, 1991], with the extended Roosbroeck-Shockley ...
SYNTHESIS OF ZNO BASED GAS SENSING FIBER MATERIAL BY ELECTROSPINNING TECHNIQUE FOR DETECTING HAZARDOUS GASES ANALYSIS

Rakhmanova, Aizhan; Kalybekkyzy, Sandugash; Soltabayev, Baktiyar; Mentbayeva, Almagul (National Laboratory Astana, 2022-08)

In recent years air pollution has risen dramatically, therefore detecting hazardous gases is becoming increasingly important. Hazardous gas detection is critical for system and process control, as well as safety monitoring ...