Growth of TiO2 Films by RF Magnetron Sputtering for MOS Gate Dielectrics: Influence of Substrate Temperature

2015 ◽  
Vol 7 (8) ◽  
pp. 1640-1648 ◽  
Author(s):  
P. Kondaiah ◽  
V. Madhavi ◽  
M. Chandra Sekhar ◽  
G. Mohan Rao ◽  
S. Uthanna
2007 ◽  
Vol 515 (24) ◽  
pp. 8785-8788 ◽  
Author(s):  
Jinzhong Wang ◽  
Vincent Sallet ◽  
François Jomard ◽  
Ana M. Botelho do Rego ◽  
Elangovan Elamurugu ◽  
...  

2013 ◽  
Vol 832 ◽  
pp. 281-285
Author(s):  
S. Najwa ◽  
A. Shuhaimi ◽  
N. Ameera ◽  
K.M. Hakim ◽  
M. Sobri ◽  
...  

Indium tin oxide was prepared using RF magnetron sputtering at different substrate temperature. The morphological and electrical properties were investigated. Morphological properties were observed by atomic force microscopy. Electrical properties were measured using standard two-point probe measurements. The result shows that the average roughness and peak to valley value are highest at high substrate temperature. The watershed analysis shows that the total grain boundaries are highest at the substrate temperature of 200°C. The lowest resistivity value of 9.57×10-5 Ωcm is obtained from ITO nanocolumn deposited at substrate temperature of 200°C. The improvement of morphological and electrical properties as transparent conducting oxide was observed from ITO nanocolumn deposited at substrate temperature of 200°C.


2015 ◽  
Vol 814 ◽  
pp. 601-606 ◽  
Author(s):  
Fei Huan ◽  
Jin Feng Leng ◽  
Zhi Chao Meng ◽  
Bin Sun ◽  
Wen Shuang He

ZnO doped Al2O3and ZrO2(ZAZO) thin films were deposited by the radio frequency magnetron sputtering on substrate temperature with 100°C, 150°C, 200°C, 250°C and 300°C. The surface morphology and electrical properties of the films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and four-probe tester. The results showed that the substrate temperature obviously influenced the grain size of ZAZO films. The ZnO thin film had the largest crystallization orientation for the (002) peak and the smallest FWHM value at substrate temperature of 250°C. As the temperature increasing, the resistance of films gradually decreased till reaching a minimum at 250°C and then rised. Due to the increasing of Al and Zr concentrations into ZnO lattice, the Al ions created an abundance number of free electrons in the ZnO lattice, and in turn, the electrical conductivity increased. In addition, the improvement of film in the crystalline state results in the film resistivity decreases.


NANO ◽  
2008 ◽  
Vol 03 (06) ◽  
pp. 469-476 ◽  
Author(s):  
K. SARAVANAKUMAR ◽  
V. SENTHILKUMAR ◽  
C. SANJEEVIRAJA ◽  
M. JAYACHANDRAN ◽  
V. GANESAN ◽  
...  

ZnO thin films were grown by the RF magnetron sputtering technique at different substrate temperatures, from RT to 300°C. The crystallite size was calculated from XRD and the grain size was measured from AFM for different substrate temperatures. The influence of the substrate temperature on the electrical properties of the films was investigated through the Hall effect, and conductivity studies were performed under UV light illumination. The conductivity and the carrier mobility of the films were found to increase with increasing substrate temperature, which can be due to the grain-boundary-dominated conduction mechanism. The thermal activation energy and photosensitivity of the films were calculated, and the results are presented in this paper.


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