Energy Gap of CdS by Photoacoustic Spectroscopy

Abstract

Photoacoustic Spectroscopy (PAS) has been set up at Physics Department, KMITL, in order to characterize some interesting materials. The system consists of high intensity broad spectrum light source (Xenon lamp 450 W), PA cell from MTEC model 300, UV-VIS monochromator and lock-in amplifier with chopper. The wavelength selection is usually controlled by HJY Spectrometer Control Program. Cadmium Sulfide (CdS) powder was used as the sample to determine its energy gap. The energy gap of CdS from our experiment is 2.43 eV with respect to 2.42 eV from the accepted value.

Keywords: photoacoustic spectroscopy (PAS), E_g of CdS

Corresponding author: Tel: 080-6061188 Fax: 02-3264413

E-mail: ktwichar@kmitl.ac.th

How to Cite

Citation Format

Techitdheera*, W. ., & Pecharapa, W. . (2018). Energy Gap of CdS by Photoacoustic Spectroscopy. CURRENT APPLIED SCIENCE AND TECHNOLOGY, 60-64.

References

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Author Information

Wicharn Techitdheera*

Department of Physics, Faculty of Science, King Mongkut’s Institute of Technology, Bangkok, Thailand

Wisanu Pecharapa

College of KMITL Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand

About this Article

Journal

Vol. 9 No. 2 (2009)

Type of Manuscript

Original Research Article

Keywords

photoacoustic spectroscopy (PAS), Eg of CdS

Published

30 March 2018

Energy Gap of CdS by Photoacoustic Spectroscopy

Abstract

How to Cite

References

Author Information

Wicharn Techitdheera*

Wisanu Pecharapa

About this Article

Journal

Type of Manuscript

Keywords

Published

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