|
|||||
|
|
Study of some physical properties of ultrasonically spray deposited silver doped lead sulphide thin films |
|
| Affiliation: | 1. Nanoscience and Nanoengineering Programme, Institute of Science and Technology, İstanbul Technical University, Maslak, Istanbul 34469, Turkey;2. Department of Physics, Faculty of Science and Letters, İstanbul Technical University, Maslak, Istanbul 34469, Turkey;1. Materials Science Research Laboratory, PG and Research Department of Physics, AVVM Sri Pushpam College (Autonomous), Poondi, Thanjavur, 613 503, Tamil Nadu, India;2. Research Department of Physics, Kunthavai Naachiyaar Govt. Arts College for Women (Autonomous), Thanjavur, 613 007, Tamil Nadu, India;3. School of Electrical and Electronics Engineering, SASTRA University, Thanjavur, 613 401, Tamil Nadu, India;1. State Key Laboratory for Silicon Materials and Center for Electron Microscopy, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;2. Hangzhou Bluestar New Materials Technology Co., Ltd, Hangzhou 310012, China;3. Weihai Blue Star Glass Co., Ltd, Weihai 264205, China |
| Abstract: | In this study, undoped and Ag doped PbS thin films at different concentrations were deposited onto glass substrates at 225 °C by using ultrasonic spray pyrolysis technique, in order to investigate the effect of Ag doping on the physical properties of PbS thin films. Structural investigations revealed that all doped PbS:Ag thin films have cubic structure and Ag doping enhances crystalline level of PbS thin films. It was determined that average crystallite size of PbS:Ag thin films increased from 24 nm to 49 nm by increasing Ag doping concentration. Morphological studies showed that surfaces of the films become denser after Ag doping. Optical transmittance and absorption spectra revealed that all deposited thin films have low transmission and high absorbance within the visible region and band gap energy of the PbS:Ag thin films were determined to be in the range of 1.37 eV and 1.28 eV by means of optical method. Electrical conductivity type of PbS:Ag films was determined to be p-type and calculated electrical resistivity was found to be lowest for Ag-doped PbS thin films at 2%. |
| Keywords: | Ultrasonic Spray Pyrolysis PbS Thin Films Ag Doping Structural Properties Optical and Electrical Properties Morphological Properties |
| 本文献已被 ScienceDirect 等数据库收录！ | |