CdSe ve CdSe/ZnO Filmlerin Elektrokimyasal Sentezi: Morfolojik, Yapısal ve Elektronik Özellikler-Reference-Cited by-同舟云学术

CdSe ve CdSe/ZnO Filmlerin Elektrokimyasal Sentezi: Morfolojik, Yapısal ve Elektronik Özellikler

Published:2022-06-30 Issue: Volume: Page:555-568
ISSN:2757-9255
Container-title:Çukurova Üniversitesi Mühendislik Fakültesi Dergisi
language:tr
Short-container-title:

Author:

SIĞIRCIK Gökmen¹,TÜKEN Tunç¹

Affiliation:

1. ÇUKUROVA ÜNİVERSİTESİ

Abstract

CdSe films were electrochemically prepared on ITO electrode in aqueous solution applying a constant potential. Structural, morphological and optical features of CdSe thin films were examined with FE-SEM, XRD and UV-visible spectrophotometry techniques. XRD results revealed CdSe films were deposited, in the form of cubic crystals from aqueous solution of Cd2+ and Se4+, in presence of Na2SO4 supporting electrolyte. Band gap values of CdSe films were found between 1.88 and 2.0 eV. Wide band gap ZnO was electrochemically deposited on narrow band gap CdSe to improve its optoelectronic properties. Band gap value of CdSe/ZnO nanonorods was determined as 2.7 eV. Mott-Schottky equation was utilized to calculate flat band potential (EFB), as well as charge carrier density (ND) of materials. ND values were found as 1.623×1020 and 9.186×1020 cm-3 for CdSe and CdSe/ZnO, respectively. ZnO offers higher stability and lower band gap is promising material to be utilized in solar cell applications.

Publisher

Cukurova Universitesi Muhendislik-Mimarlik Fakultesi Dergisi

Reference42 articles.

1. 1. Pulipaka, S., Boni, N., Ummethala, G., Meduri, P., 2020. CuO/CuBi2O4 Heterojunction Photocathode: High Stability and Current Densities for Solar Water Splitting. J. Catal., 387, 17-27

2. 2. Yadav, A.A., Barote, M.A, Masumdar, E.U., 2010. Photoelectrochemical Properties of Spray Deposited n-CdSe Thin Films. Sol. Energy, 84, 763-770.

3. 3. Choudhary, S., Upadhyay, S., Kumar, P., Singh, N., Satsangi, V.R., Shrivastav, R., Dass, S., 2012. Nanostructured Bilayered Thin Films in Photoelectrochemical Water Splitting-A Review. Int. J. Hydrogen Energy, 37, 18713-18730.

4. 4. Mu, J., Teng, F., Miao, H., Wang, Y., Hu, X., 2020. In-situ Oxidation Fabrication of 0D/2D SnO2/SnS2 Novel Step-scheme Heterojunctions with Enhanced Photoelectrochemical Activity for Water Splitting. Appl. Surf. Sci., 501, 143974.

5. 5. Qiu, Y., Pan, Z., Chen, H., Ye, D., Guo, L., Fan, Z., Yang, S., 2019. Current Progress in Developing Metal Oxide Nanoarrays-based Photoanodes for Photoelectrochemical Water Splitting. Sci. Bull., 64, 1348-1380.