Dissertation/Thesis Abstract

CdS Reflection Coefficient Determination via Photocurrent Spectroscopy
by Wang, Yang, M.S., Bowling Green State University, 2008, 33; 10817734
Abstract (Summary)

Reflectance is a very essential property of every semiconductor and the topic of this thesis was to determine the reflection coefficient of CdS by unusual means, i.e., be using photocurrent spectroscopy. Reflectance and photocurrent of the CdS sample and a silicon photodiode was measured using the lock-in amplifier. The photocurrent of the diode was required in order to correct the CdS photocurrent spectra, which are influenced by the experimental setup. By means of photocurrent, the absorption coefficient was determined using the density of states (DOS), Urbach rule, and the appropriate expression for the photocurrent. Measurement and the theory matched very well, and finally, using the absorption coefficient the dispersion of the CdS reflection was plotted.

Indexing (document details)
Advisor:
Commitee: Fulcher, Lewis P., Ullrich, Bruno, Zamkov, Mikhail
School: Bowling Green State University
Department: Physics
School Location: United States -- Ohio
Source: MAI 57/05M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Physics
Keywords: Cds, Lock-in amplifier, Photocurrent, Photodiode, Reflectance, Si photodiode
Publication Number: 10817734
ISBN: 978-0-355-84311-8
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