Electrochemical growth of ZnSe thin films, characterization and heterojunction applications
Materials Research Express, vol.6, no.11, 2019 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 6 Issue: 11
- Publication Date: 2019
- Doi Number: 10.1088/2053-1591/ab4679
- Journal Name: Materials Research Express
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: electrochemical growth, electrodeposition, heterojunction, ZnSe thin film
- Isparta University of Applied Sciences Affiliated: Yes
Abstract
In this study, ZnSe semiconductor thin film was attained using the electrodeposition (ECD) method. ZnSe thin films were grown on ITO (indium tin oxide) and p-Si substrates using zinc perchlorate (Zn(ClO4)2), selenic acid (H2SeO3) and selenium dioxide (SeO2) compounds. ZnSe thin films grown with the ECD method were produced by applying -0.6 V potential value on ITO for one hour and -1.4 V potential value on p-Si for the same period. The structural properties and optical characteristics of the grown samples were examined with the help of x-ray diffraction and absorption spectrums. The current-voltage (I-V) characteristics of the n-ZnSe/p-Si heterojunction were examined, and the rectification behavior was observed. Ideality factor, operation voltage, barrier height and reverse-bias saturation current were calculated from the current-voltage graphics. The ideality factor was calculated as 1.76, operation voltage as 0.201 V, barrier height as 0.654 eV and reverse-bias saturation current as 2.407 × 10-8 mA.