Influence of Cu doping and post-heat treatment on the microstructure, optical properties and photoluminescence features of sol–gel derived nanostructured CdS thin films

2013 ◽  
Vol 141 ◽  
pp. 121-129 ◽  
Author(s):  
A. Abdolahzadeh Ziabari ◽  
F.E. Ghodsi
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Optical Properties ◽  
Sol Gel ◽  
Post Heat Treatment ◽  
Cu Doping ◽  
Cds Thin Films

Preparation and Characterization of Cu-Doped Zno Sol-Gel Derived Optical Thin Films

2013 ◽  
Vol 802 ◽  
pp. 124-128 ◽  
Author(s):  
Krisana Chongsri ◽  
Siriwattana Aunpang ◽  
Wicharn Techitdheera ◽  
Wisanu Pecharapa
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sol Gel ◽  
Copper Acetate ◽  
Visible Region ◽  
Ambient Air ◽  
Doping Content ◽  
Acetate Dihydrate ◽  
Cu Doping ◽  
Doped Zno

In this work, we report the preparation of Cu-doped ZnOthin films by sol-gel method based on zinc acetate dihydrate (CH3COO)2Zn·2H2O, Copper acetate dihydrate Cu3(CH3COO)2·H2O) and diethanolamine (HN(CH2OH)2, DEA). The precursor solution was prepared at various Cu composition ranging from 2-20 wt%. All films were spin-coated on borosilicate substrates for several coating repetition followed by annealing process at 550 °C for 4 h in an ambient air. The structural properties of the films were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD results indicate the domination of hexagonal wurtzite structure of ZnO with noticeable alternation in the XRD peak intensity upon Cu doping content. SEM results revealed the grain size shape and surface morphologies of as-prepared samples. Crucial optical properties of as-prepared films were scrutinized from their UV-Vis transmission spectra. The films are highly transparent in the visible region with more than 90 % transparency within 380 nm to 800 nm. Their corresponding band gaps indicate significant red shift with increasing Cu doping content. Overall results suggest that Cu additive play a vital role on relevant optical properties of ZnO that can be adjusted to meet the requirement for practical optoelectronics applications.

Effects of cooling rate and post-heat treatment on properties of ZnO thin films deposited by sol–gel method

2011 ◽  
Vol 257 (21) ◽  
pp. 9019-9023 ◽  
Author(s):  
Min Su Kim ◽  
Kwang Gug Yim ◽  
Dong-Yul Lee ◽  
Jin Soo Kim ◽  
Jong Su Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Cooling Rate ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Post Heat Treatment ◽  
Gel Method ◽  
Sol Gel Method

Effect of post-heat treatment on the electrical and optical properties of ZnO:Al thin films

2006 ◽  
Vol 502 (1-2) ◽  
pp. 219-222 ◽  
Author(s):  
V. Musat ◽  
B. Teixeira ◽  
E. Fortunato ◽  
R.C.C. Monteiro
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Optical Properties ◽  
Post Heat Treatment ◽  
Electrical And Optical Properties

Preparation of Polycrystalline Cds Thin Films by Chemical Bath Deposition

1995 ◽  
Vol 410 ◽  
Author(s):  
Eun A Lee ◽  
Bum-Soo Kim ◽  
Sung Ho Shin ◽  
Jung Il Park ◽  
Kwang Ja Park
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Optical Properties ◽  
Chemical Bath Deposition ◽  
Reaction Temperature ◽  
Ammonium Acetate ◽  
Cadmium Acetate ◽  
Structural And Optical Properties ◽  
Cds Thin Films

ABSTRACTWe prepared CdS thin films from a solution containing cadmium acetate, thiourea, ammonia, and ammonium acetate. We varied fabrication conditions such as the concentrations of reactants, reaction temperature, and heat treatment, to investigate the changes in structural and optical properties of the film. Effects of substrate on the properties were also investigated.

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