Structural and Optical Properties of Multilayer Heterostructure of CdTe/CdSe Thin Films

被引：13

作者：

Majid, Farzana ^{[4
]}

Malik, Abdul ^{[5
]}

Ata, Sadia ^{[1
]}

Hussain, Zaheer ^{[4
]}

Bibi, Ismat ^{[2
]}

Iqbal, Munawar ^{[3
]}

Rafay, Muhammad ^{[6
]}

Rizvi, Hina ^{[7
]}

机构：

[1] Univ Punjab, Inst Chem, Lahore, Pakistan

[2] Islamia Univ Bahawalpur, Dept Chem, Bahawalpur, Pakistan

[3] Univ Lahore, Dept Chem, Lahore, Pakistan

[4] Univ Punjab, Dept Phys, Lahore, Pakistan

[5] Natl Inst Laser & Optron NILOP, Islamabad, Pakistan

[6] Islamia Univ Bahawalpur, Dept Forestry Range & Wildlife Management, Bahawalpur, Pakistan

[7] Govt Coll Univ, Dept Environm Sci & Engn, Faisalabad, Pakistan

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2019年 / 233卷 / 09期

关键词：

CdTe/CdSe; multilayer heterostructure; structural & optical properties; thin films; NANOCRYSTALLINE CDSE; CDTE; TEMPERATURE; PERFORMANCE;

D O I：

10.1515/zpch-2018-1339

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

CdTe/CdSe multilayer heterostructures thin films were prepared by thermal evaporation method. The CdTe/CdSe layers deposited on glass substrate and effects of annealing temperature on optical and structural properties of thin films were investigated. The XRD analysis revealed that CdTe and CdSe were in cubic (111) and hexagonal (100) forms. By increasing the annealing temperature, intensity of XRD peaks increased for multilayer heterostructures. Band alignment in heterostructures of CdTe/CdSe was of type II. Energy band gaps values for CdTe/CdSe multilayer heterostructures increased with respect to bulk compounds. During emission, red and blue shifts are observed in visible region in photoluminescence spectrum of CdTe/CdSe samples. Due to better crystallinity of multilayer thin film, 1LO, 2LO and 3LO phonon modes were observed in Raman spectrum.

引用

页码：1215 / 1231

页数：17

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