Spectroscopic study of high-quality CdS Nano crystals preparing in paraffin solvent

العناوين الأخرى

دراسة طيفية لبلورت كبريتيد الكادميوم النانوية العالية الجودة المحضرة في مذيب البارافين

مقدم أطروحة جامعية

Jada, Muhammad Aziz

مشرف أطروحة جامعية

Sadiq, Zaynab Subayh
Mahdi, Dunya Kamal

الجامعة

جامعة بغداد

الكلية

كلية العلوم

القسم الأكاديمي

قسم الفيزياء

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2014

الملخص الإنجليزي

In this work, an easy, low-cost, green, and environmentally friendlier reagents have been used to prepare, high quality CdS quantum dots (QDs), using chemical reaction method.

The samples have been prepared using different ratio of CdO and sulfur in paraffin liquid as solvent and oleic acid as the catalyst in different concentration and reaction time.

Many techniques have been used to test the samples and to study their optical properties and internal structure such as SEM, XRD, UV- visible absorption spectroscopic tests and emission spectroscopy.

The experimental results show that XRD spectrum have broad peaks that’s an indication to CdS nano crystals formation with small sizes.

From the results it can be concluded that such synthesized CdS QDs had the optimum reaction condition for Cd:S molar ratio is 1:1, 4 ml oleic acid concentration, reacting time at 6 minutes and high temperature in 180 0C.

The size distribution for the above optimum conditions of CdS QDs prepared equal to 9.24 nm.

التخصصات الرئيسية

الفيزياء

عدد الصفحات

76

قائمة المحتويات

Table of contents.

Abstract.

Abstract in Arabic.

Chapter One : Concepts and literature review.

Chapter Two : Experimental work.

Chapter Three : Results and discussion.

References.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Jada, Muhammad Aziz. (2014). Spectroscopic study of high-quality CdS Nano crystals preparing in paraffin solvent. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607359

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Jada, Muhammad Aziz. Spectroscopic study of high-quality CdS Nano crystals preparing in paraffin solvent. (Master's theses Theses and Dissertations Master). University of Baghdad. (2014).
https://search.emarefa.net/detail/BIM-607359

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Jada, Muhammad Aziz. (2014). Spectroscopic study of high-quality CdS Nano crystals preparing in paraffin solvent. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607359

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-607359