Solution-based Ag-doped ZnSe thin films with tunable electrical and optical properties

2015 ◽  
Vol 3 (38) ◽  
pp. 9781-9788 ◽  
Author(s):  
Yang Xi ◽  
Lidia El Bouanani ◽  
Zhe Xu ◽  
Manuel A. Quevedo-Lopez ◽  
Majid Minary-Jolandan

Thin film transistors fabricated using ZnSe thin films synthesized using chemical bath deposition.

2011 ◽  
Vol 25 (20) ◽  
pp. 2741-2749 ◽  
Author(s):  
J. C. ZHOU ◽  
L. LI ◽  
L. Y. RONG ◽  
B. X. ZHAO ◽  
Y. M. CHEN ◽  
...  

High transparency and conductivity of transparent conducting oxide thin film are very important for improving the efficiency of solar cells. ZnO thin film is a better candidate for transparent conductive layer of solar cell. N-type ZnO thin films were prepared by radio-frequency magnetron sputtering on glass substrates. ZnO thin films underwent annealing treatment after deposition. The influence of the sputtering power on the surface morphology, the electrical and optical properties were studied by AFM, XRD, UV2450 and HMS-3000. The experimental results indicate that the crystal quality of ZnO thin film is improved and all films show higher c-axis orientation with increasing sputtering power from 50 to 125 W. The average transparency of ZnO thin films is higher than 90% in the range of 400–900 nm between the sputtering power of 50–100 W. After the rapid thermal annealing at 550°C for 300 s under N2 ambient, the minimum resistivity reach to 10-2Ω⋅ cm .


2021 ◽  
Vol 21 (3) ◽  
pp. 1971-1977
Author(s):  
Jihye Kang ◽  
Dongsu Park ◽  
Donghun Lee ◽  
Masao Kamiko ◽  
Sung-Jin Kim ◽  
...  

In this research, alternative deposition process of ZnO-based thin films have been studied for transparent conducting oxide (TCO) application. To improve the electrical and optical properties of transparent oxide thin films, alternatively stacked Al-doped ZnO and In-doped ZnO thin films were investigated. Multilayer structure of alternative 6 layers of thin films were prepared in this research. Especially, Aluminum and Indium were chosen as dopant materials. Thin films of Al-doped ZnO (AZO) and In-doped ZnO (IZO) were alternatively deposited by spin coating with sol-gel method. After deposition of multilayered thin films, multi steps of furnace (F), rapid thermal annealing (R) and CO2 laser annealing (L) processes were carried out and investigated thin film properties by dependence of post-annealing sequence and thin film structures. The electrical and optical properties of thin films were investigated by 4-point probe and UV-vis spectroscopy and its shows the greatest sheet resistance value of 0.59 kΩ/sq. from AZO/IZO multilayered structure and upper 85% of transmittance. The structural property and surface morphology were measured by X-Ray Diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The Al- and In-doped ZnO thin film shows the highest intensity value at (002) peak of AZO/IZO multilayer structure which was performed FRL process.


1994 ◽  
Vol 369 ◽  
Author(s):  
C. Zhang ◽  
H. Deng ◽  
J. Varon ◽  
B. Abeles ◽  
Y. Yang ◽  
...  

AbstractThin film SrCo0.8Fe0.2O3-δ were made by pulse laser deposition. The electrical conductivity is thermally activated in the temperature 25-500 °C with an activation energy of 0.17-0.19 eV and is temperature independant from 500-800 °C. The optical absorption shows characteristic features which are interpreted qualitatively in terms of a simple band structure diagram.


2013 ◽  
Vol 1 (2) ◽  
pp. 121-130
Author(s):  
J.I Onwuemeka ◽  
F.M Ezike ◽  
N.C Nwulu

A research on the deposition and Characterization of SnS Thin Films by Chemical Bath Deposition Technique using Ammonia (NH3) as a complexing agent. Thin film of Tin (II) sulphide (SnS) is deposited onto glass substrates using chemical bath deposition (CBD) at room temperature for 3hours and 1hour. The optical properties of the film were measured using Double Beam UV- Spectrophotometer with serial number UV061514, Energy dispersive X-ray florescence (EDXRF) determines the compositions together with Rutherford Back Scattering (RBS) analysis revealed that thin films have percentage compositions of the elements (Sn/S, 50.1/49.9 for 3hours and Sn/S, 50.4/49.6 for 1hour) and their thicknesses are 100nm for 3hours and 150nm for 1hour. It was found that SnS thin film exhibits p-type conduction. Optical band gap values of direct and indirect transitions are estimated to be 1.98eV to 2.01eV and 1.82eV to 1.98eV for the two samples respectively. The other optical properties calculated from transmittance using appropriate equations are absorbance, reflectance, band gap , absorption coefficient, optical conductivity, refractive index and extinction coefficient.


2017 ◽  
Vol 38 (12) ◽  
pp. 1622-1628 ◽  
Author(s):  
李治玥 LI Zhi-yue ◽  
吕英波 LYU Ying-bo ◽  
赵继凤 ZHAO Ji-feng ◽  
宋淑梅 SONG Shu-mei ◽  
杨波波 YANG Bo-bo ◽  
...  

2020 ◽  
Vol 93 (8) ◽  
pp. 793-801
Author(s):  
J. Henry ◽  
T. Daniel ◽  
V. Balasubramanian ◽  
K. Mohanraj ◽  
G. Sivakumar

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