Conductive thin films based on poly (aniline-co- o -anthranilic acid)/magnetite nanocomposite for photovoltaic applications

2017 ◽  
Vol 231 ◽  
pp. 34-43 ◽  
Author(s):  
M. Sh. Zoromba ◽  
A.F. Al-Hossainy ◽  
M.H. Abdel-Aziz
Author(s):  
J.P.S. Hanjra

Tin mono selenide (SnSe) with an energy gap of about 1 eV is a potential material for photovoltaic applications. Various authors have studied the structure, electronic and photoelectronic properties of thin films of SnSe grown by various deposition techniques. However, for practical photovoltaic junctions the electrical properties of SnSe films need improvement. We have carried out investigations into the properties of flash evaporated SnSe films. In this paper we report our results on the structure, which plays a dominant role on the electrical properties of thin films by TEM, SEM, and electron diffraction (ED).Thin films of SnSe were deposited by flash evaporation of SnSe fine powder prepared from high purity Sn and Se, onto glass, mica and KCl substrates in a vacuum of 2Ø micro Torr. A 15% HF + 2Ø% HNO3 solution was used to detach SnSe film from the glass and mica substrates whereas the film deposited on KCl substrate was floated over an ethanol water mixture by dissolution of KCl. The floating films were picked up on the grids for their EM analysis.


2002 ◽  
Vol 7 (2) ◽  
pp. 45-52
Author(s):  
L. Jakučionis ◽  
V. Kleiza

Electrical properties of conductive thin films, that are produced by vacuum evaporation on the dielectric substrates, and which properties depend on their thickness, usually are anisotropic i.e. they have uniaxial anisotropy. If the condensate grow on dielectric substrates on which plane electrical field E is created the transverse voltage U⊥ appears on the boundary of the film in the direction perpendicular to E. Transverse voltage U⊥ depends on the angle γ between the applied magnetic field H and axis of light magnetisation. When electric field E is applied to continuous or grid layers, U⊥ and resistance R of layers are changed by changing γ. It means that value of U⊥ is the measure of anisotropy magnitude. Increasing voltage U0 , which is created by E, U⊥ increases to certain magnitude and later decreases. The anisotropy of continuous thin layers is excited by inequality of conductivity tensor components σ0 ≠ σ⊥. The reason of anisotropy is explained by the model which shows that properties of grain boundaries are defined by unequal probability of transient of charge carrier.


Author(s):  
Raquel Caballero ◽  
Leonor de la Cueva ◽  
Andrea Ruiz-Perona ◽  
Yudenia Sánchez ◽  
Markus Neuschitzer ◽  
...  

2006 ◽  
Vol 6 (7) ◽  
pp. 1939-1944 ◽  
Author(s):  
X. Yu ◽  
R. Rajamani ◽  
K. A. Stelson ◽  
T. Cui

2015 ◽  
Vol 764-765 ◽  
pp. 138-142 ◽  
Author(s):  
Fa Ta Tsai ◽  
Hsi Ting Hou ◽  
Ching Kong Chao ◽  
Rwei Ching Chang

This work characterizes the mechanical and opto-electric properties of Aluminum-doped zinc oxide (AZO) thin films deposited by atomic layer deposition (ALD), where various depositing temperature, 100, 125, 150, 175, and 200 °C are considered. The transmittance, microstructure, electric resistivity, adhesion, hardness, and Young’s modulus of the deposited thin films are tested by using spectrophotometer, X-ray diffraction, Hall effect analyzer, micro scratch, and nanoindentation, respectively. The results show that the AZO thin film deposited at 200 °C behaves the best electric properties, where its resistance, Carrier Concentration and mobility reach 4.3×10-4 Ωcm, 2.4×1020 cm-3, and 60.4 cm2V-1s-1, respectively. Furthermore, microstructure of the AZO films deposited by ALD is much better than those deposited by sputtering.


2019 ◽  
Vol 30 (14) ◽  
pp. 12876-12887 ◽  
Author(s):  
Shah Fahad ◽  
Haojie Yu ◽  
Li Wang ◽  
Ahsan Nazir ◽  
Raja Summe Ullah ◽  
...  

2011 ◽  
Vol 132 (10) ◽  
pp. 669-672 ◽  
Author(s):  
Yoshiaki Matsuo ◽  
Kenshiro Iwasa ◽  
Yosohiro Sugie ◽  
Hisanao Usami ◽  
Masayuki Kawaguchi

2000 ◽  
Vol 61 (3) ◽  
pp. 277-286 ◽  
Author(s):  
R.P Wijesundara ◽  
L.D.R.D Perera ◽  
K.D Jayasuriya ◽  
W Siripala ◽  
K.T.L De Silva ◽  
...  

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