World Journal of Engineering Research and Technology (WJERT) has indexed with various reputed international bodies like : Google Scholar , Index Copernicus , Indian Science Publications , SOCOLAR, China , International Institute of Organized Research (I2OR) , Cosmos Impact Factor , Research Bible, Fuchu, Tokyo. JAPAN , Scientific Indexing Services (SIS) , Jour Informatics (Under Process) , UDLedge Science Citation Index , International Impact Factor Services , International Scientific Indexing, UAE , International Society for Research Activity (ISRA) Journal Impact Factor (JIF) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Scientific Journal Impact Factor (SJIF) , Science Library Index, Dubai, United Arab Emirates , Eurasian Scientific Journal Index (ESJI) , Global Impact Factor (0.342) , IFSIJ Measure of Journal Quality , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , 

World Journal of Engineering
Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

News & Updation

  • Article Invited for Publication

    Article are invited for publication in WJERT Coming Issue

  • ICV

    WJERT Rank with Index Copernicus Value 79.45 due to high reputation at International Level

  • WJERT New Impact Factor

    Its our Pleasure to Inform you that WJERT Impact Factor has been increased from  5.549 to 5.924 due to high quality Publication at International Level

  • WJERT JANUARY ISSUE PUBLISHED

    JANUARY 2021 Issue has been successfully launched on 1 January 2021.

  • New Issue Published

    Its Our pleasure to inform you that, WJERT 1 January 2021 Issue has been Published, Kindly check it on http://wjert.org/home/current_issues

Indexing

Abstract

STUDY OF OPTICAL AND ELECTRICAL PROPERTIES OF SPRAY PYROLYTICALLY DEPOSITED CdZnSe2xTe2(1-x) THIN FILMS FOR X=0.75

S. A. Gaikwad*

ABSTRACT

Spray pyrolysis is a simple, inexpensive and economical method to produce a thin film on large substrate area. Thin films of CdZnSe2xTe2(1-x) for composition parameter ,x.=0.75 at a substrate temperature of 3000Care prepared by spray pyrolysis technique. From the optical transmission and reflection spectra, absorption coefficient (?) was calculated and was of the order of 104 cm-1..Band gap energy were determined from absorbance measurement in visible range as 2.47 eV using Tauc theory. It shows that the main transition at the fundamental absorption edge is a direct allowed transition. The refractive index(n) and extinction coefficient(k) both decreases as wavelength increases which shows that the optical constants are most suitable for many scientific studies and technological applications such as heat mirrors, transparent electrodes and solar cells. The activation energy increases at higher temperature may be due to attributed to the increase of band gap. Hence the grain size of the films increases. This effect reduces the grain boundry effect. The XRD pattern shows number of peaks indicating that the films are poly crystalline in nature. The analysis of spectrum indicated that the ternary films are having throughout cubic structure. The value of lattice parameter „ a? is 6.1451 A°.

[Full Text Article]