Band Gap Engineering Based on Sol-Gel-Derived MgxZn1-xO Thin Films Grown on Muscovite Mica Substrates

2016 ◽  
Vol 54 (6) ◽  
pp. 423-428 ◽  
Author(s):  
Jae-Young Leem ◽  
Younggyu Kim
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Sol Gel ◽  
Band Gap Engineering ◽  
Muscovite Mica

Band Gap Engineering in Spray Pyrolysis Grown Nanocrystalline NiO Thin Films by Fe Doping

2019 ◽  
Vol 11 (4) ◽  
pp. 04015-1-04015-6
Author(s):  
H. S. Gavale ◽  
◽  
M. S. Wagh ◽  
S. R. Gosavi ◽  
◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Spray Pyrolysis ◽  
Fe Doping ◽  
Band Gap Engineering

The effect of the withdrawal speed on properties of nickel oxide thin films

2019 ◽  
Vol 234 (10) ◽  
pp. 647-655
Author(s):  
Zohra Nazir Kayani ◽  
Atiqa Aslam ◽  
Rabia Ishaque ◽  
Syeda Nosheen Zahra ◽  
Hifza Hanif ◽  
...  
Keyword(s):  
Thin Films ◽  
Nickel Oxide ◽  
Band Gap ◽  
Sol Gel ◽  
Average Crystallite Size ◽  
Dip Coating ◽  
Oxide Thin Films ◽  
Withdrawal Speed ◽  
Sem Micrograph ◽  
Nickel Oxide Thin Films

Abstract Nickel oxide thin films have been prepared by sol-gel dip-coating technique on glass substrate. It is shown that nickel oxide thin films have poly crystalline nature. Nickel oxide thin films exhibit high transmission (39–85%) in the wavelength range of 400–900 nm, strong absorption between 300 and 400 nm wavelengths and decrease of band gap values are in the range 3.69–3.27 eV with increase of withdrawal speed. High band gap at low withdrawal speed is because of the small average crystallite size, which decreases with increase in withdrawal speed. The SEM micrograph shows cubic crystallites and surface of thin films become dense, smooth and homogeneous with an increase in withdrawal speed. Assessment of nickel oxide deposition conditions provides gateway for effective and cheap solar cells.

scholarly journals Correlation of film thickness to optical band gap of Sol-gel derived Ba0.9Gd0.1TiO3 thin films for optoelectronic applications

2017 ◽  
Vol 162 ◽  
pp. 01042
Author(s):  
Yen Chin Teh ◽  
Ala’eddin A. Saif ◽  
Zul Azhar Zahid Jamal ◽  
Prabakaran Poopalan
Keyword(s):  
Thin Films ◽  
Film Thickness ◽  
Band Gap ◽  
Optical Band Gap ◽  
Sol Gel ◽  
Optoelectronic Applications

Influence of doping precursor on band gap and morphologies of sol-gel deposited ZnMgO thin films

2014 ◽  
Vol 11 (9-10) ◽  
pp. 1488-1492 ◽  
Author(s):  
Amanpal Singh ◽  
Sonia Saini ◽  
Dinesh Kumar ◽  
P. K. Khanna ◽  
Mukesh Kumar ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Sol Gel

Preparation and characterization of V2O5 doped SiO2-TiO2 thin films

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Marek Nocuń ◽  
Sławomir Kwaśny
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Dip Coating ◽  
Band Gap Energy ◽  
Tio2 Thin Films ◽  
Glass Substrates ◽  
Gel Technique

AbstractIn our investigation, V doped SiO2/TiO2 thin films were prepared on glass substrates by dip coating sol-gel technique. Chemical composition of the samples was studied by X-ray photoelectron spectroscopy (XPS). Transmittance of the samples was characterized using UV-VIS spectrophotometry. Subsequently band-gap energy (Eg) was estimated for these films. Powders obtained from sols were characterized by FTIR spectroscopy. It was found that vanadium decreases optical band gap of SSiO2/TiO2 films.

scholarly journals Band gap engineering of N-alloyed Ga2O3 thin films

AIP Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 065016 ◽  
Author(s):  
Dongyu Song ◽  
Li Li ◽  
Bingsheng Li ◽  
Yu Sui ◽  
Aidong Shen
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Band Gap Engineering

scholarly journals Dimensional Crossover and Topological Nature of the Thin Films of a Three-Dimensional Topological Insulator by Band Gap Engineering

Nano Letters ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 4627-4633 ◽  
Author(s):  
Zhenyu Wang ◽  
Tong Zhou ◽  
Tian Jiang ◽  
Hongyi Sun ◽  
Yunyi Zang ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Topological Insulator ◽  
Three Dimensional ◽  
Dimensional Crossover ◽  
Band Gap Engineering

Band gap engineering in Zn(1−x)CdxO and Zn(1−x)MgxO thin films by RF sputtering

2014 ◽  
Vol 40 (1) ◽  
pp. 2135-2142 ◽  
Author(s):  
S. Gowrishankar ◽  
L. Balakrishnan ◽  
N. Gopalakrishnan
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Rf Sputtering ◽  
Band Gap Engineering
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