Role of Hydrogen Plasma on the Electrical and Optical Properties of Indium Zinc Transparent Conductive Oxide

2006 ◽  
Vol 514-516 ◽  
pp. 63-67 ◽  
Author(s):  
Leandro Raniero ◽  
Alexandra Gonçalves ◽  
Ana Pimentel ◽  
Shibin Zhang ◽  
Isabel Ferreira ◽  
...  
Keyword(s):  
Optical Properties ◽  
Power Density ◽  
Hydrogen Plasma ◽  
Transparent Conductive Oxide ◽  
Optical Transmittance ◽  
Electrical And Optical Properties ◽  
Hydrogenated Silicon ◽  
Hydrogen Flow ◽  
Layer Deposition ◽  
Conductive Oxide

In this work we studied the influence of the power density of hydrogen plasma on electrical and optical properties (Hall mobility, free carrier concentration, sheet resistance, optical transmittance and a.c. impedance) of indium zinc oxide films, aiming to determine their chemical stability. This is an important factor for the optimization of amorphous/nanocrystalline p-i-n hydrogenated silicon (a/nc-Si:H) solar cells, since they should remain chemically highly stable during the p layer deposition. To perform this work the transparent conductive oxide was exposed to hydrogen plasma at substrate temperature of 473 K, 87 Pa of pressure and 20 sccm of hydrogen flow. The results achieved show that IZO films were reduced for all plasma conditions used, which leads mainly to a decrease on films transmittance. For the lowest power density used in the first minute of plasma exposition the transmittance of the IZO films decreases about 29%.

Electrical and Optical Properties of Al-Doped ZnO Transparent Conductive Oxide Films Prepared via Radio Frequency Magnetron Co-Sputtering System

2020 ◽  
Vol 20 (11) ◽  
pp. 6788-6791
Author(s):  
Yeunho Joung ◽  
Kyumin Lee ◽  
Mungi Park ◽  
Wonseok Choi
Keyword(s):  
Optical Properties ◽  
Radio Frequency ◽  
Structural Characteristics ◽  
Power Level ◽  
Visible Region ◽  
Transparent Conductive Oxide ◽  
Deposition Condition ◽  
Electrical And Optical Properties ◽  
Conductive Oxide ◽  
Doped Zno

In this study, the optical and electrical properties of a transparent conductive oxide (TCO) film synthesized via the radio frequency (RF) magnetron co-sputtering of Al-doped ZnO (AZO) and ZnO targets on a glass substrate were investigated. In the visible region, the resistivity, transmittance, and carrier concentration of the TCO film are influenced by the ratio of Al doping. The samples were prepared using two targets with the same deposition condition, except several different power levels on an AZO target to obtain different Al compositions in the film. The power range was 100–160 W in 20 W steps on the AZO target with a constant 50 W power level on the ZnO target. The electrical and optical characteristics of the film were measured using several apparatuses. The cross-section of the films was measured with via field emission scanning electron microscopy (FESEM) to determine the thickness of the film. The electrical and optical properties of the AZO films were measured via Hall measurement and UV-visible spectroscopy. The structural characteristics of the AZO films were confirmed by Raman spectroscopy.

Electrical and Optical Properties of ZnO Processed by Atomic Layer Deposition in Inverted Polymer Solar Cells

2010 ◽  
Vol 114 (48) ◽  
pp. 20713-20718 ◽  
Author(s):  
Hyeunseok Cheun ◽  
Canek Fuentes-Hernandez ◽  
Yinhua Zhou ◽  
William J. Potscavage ◽  
Sung-Jin Kim ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Atomic Layer Deposition ◽  
Polymer Solar Cells ◽  
Atomic Layer ◽  
Electrical And Optical Properties ◽  
Layer Deposition ◽  
Inverted Polymer Solar Cells

Electrical and Optical Properties of Amorphous Si1-xSnx: H Structures

1986 ◽  
Vol 77 ◽  
Author(s):  
D. Girginoudi ◽  
A. Thanailakis ◽  
A. Christou
Keyword(s):  
Optical Properties ◽  
Electron Beam ◽  
Entire Range ◽  
Conductivity Measurements ◽  
Electrical And Optical Properties ◽  
Hydrogenated Silicon ◽  
Tin Films ◽  
Amorphous Hydrogenated Silicon ◽  
Conductivity Increase ◽  
Band Edge Luminescence

ABSTRACTAmorphous hydrogenated silicon-tin films (α — Six Snx:H) have been prepared by co-electron beam and Knudsen cell deposition. It is shown that the dependence of Eg on x, over the entire range of 0 < x < 0.51 studied, cannot be described by a single linear relationship. The d.c. conductivity measurements indicate two distinct conduction regions as a function of x. The addition of Sn up to x = 0.10 creates a high density of dangling bonds and moves the band edges so a significant conductivity increase is observed. The bonding between Si and H is preferred to Sn and H. Sn-H bonds were observed only for x > 0.40. Photoluminescence measurements show that band edge luminescence dominates at 1.3–1.4 eV.

Electrical and Optical Properties of Silicone Oil/Carbon Nanotube Nanocomposites

2021 ◽  
Vol 21 (4) ◽  
pp. 2185-2195
Author(s):  
Jeferson Matos Hrenechen ◽  
Celso de Araujo Duarte ◽  
Ney Pereira Mattoso Filho ◽  
Evaldo Ribeiro
Keyword(s):  
Optical Properties ◽  
Room Temperature ◽  
Conduction Mechanism ◽  
Silicone Oil ◽  
Optical Transmittance ◽  
Liquid Matrix ◽  
Electrical And Optical Properties ◽  
Multiwalled Carbon ◽  
Liquid Matrices ◽  
The Matrix

The present work describes the preparation and the investigation of the room temperature electrical and optical properties of a series of liquid nanocomposites (lnC) prepared with different concentrations of multiwalled carbon nanotubes (MWCNT) in a variety of liquid matrices: glycerin, Vaseline, glucose, propylene glycol and silicone oil (SIO). Special attention is deserved to the SIO matrix, owing to its convenient electrical properties for our purposes. We verified that a small percent fraction of MWCNT dispersed along the SIO matrix is capable of improving the electrical conductivity of the matrix by orders of magnitude, indicating that the MWCNT strongly participates in the electrical conduction mechanism. Also, the application of an external electric field to this lnC resulted in large changes in the optical transmittance, that were interpreted as a consequence of the fieldinduced MWCNT alignment into the liquid matrix. The characteristics of such a new category of nanocomposite in the liquid state suggest further studies.

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