Amorphous silicon light emitting diode quantum dots
Other Title(s)
السليكون العشوائي للثنائي الباعث للضوء من النقاط الكميه
Dissertant
Thesis advisor
University
University of Baghdad
Faculty
College of Education for Puresciences-IBN al-Haitham
Department
Department of Physics
University Country
Iraq
Degree
Master
Degree Date
2015
English Abstract
In this work, theoretical calculations were used by considering the amorphous silicon quantum dots light emitting diode (a-SiQDs LED) as the device of investigation.
By these calculations, the effect of quantum confinement was a doped.
It is found that the light emission shows significant size dependence in the range (1-4) nm of the quantum dots.
The internal quantum efficiency is affected by temperature and it is more efficient at room temperature.
The energy gap can be tuned by controlling the size of a-SiQDs.
The blue shift is attributed to quantum confinement effect in a-SiQDs structure, where quantum confinements make silicon like candidate for full-color display.
It led to the interpretation that the a-SiQDs material has been changed to be a direct band gap material.
Internal quantum efficiency as a function of wavelength and injection current has been studied.
It is found that the obtained results are in good agreement with the experimental published data.
Therefore, a-SiQDs material was asserted to be a promising candidate for visible, tunable and high performance light emitting devices
Main Subjects
No. of Pages
72
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Basic concepts of light emitting diode.
Chapter Two : Theory and calculations.
Chapter Three : Results, discussion and conclusions.
References.
American Psychological Association (APA)
Khalil, Wala Khalil Jamil. (2015). Amorphous silicon light emitting diode quantum dots. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-735844
Modern Language Association (MLA)
Khalil, Wala Khalil Jamil. Amorphous silicon light emitting diode quantum dots. (Master's theses Theses and Dissertations Master). University of Baghdad. (2015).
https://search.emarefa.net/detail/BIM-735844
American Medical Association (AMA)
Khalil, Wala Khalil Jamil. (2015). Amorphous silicon light emitting diode quantum dots. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-735844
Language
English
Data Type
Arab Theses
Record ID
BIM-735844
