Sensing Characteristics of Cubic and Rhombohedral Nanocrystalline ITO Thick Films

2001 ◽  
Vol 704 ◽  
Author(s):  
Jeung-Soo Huh ◽  
Bong-Chull Kim ◽  
Jae-Yeol Kim ◽  
Jeong-Ok Lim
Keyword(s):  
Crystal Structure ◽  
Particle Size ◽  
Binding Energy ◽  
Surface Structure ◽  
Crystal Structures ◽  
Aging Time ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Ethanol Sensing ◽  
Sensing Characteristics

AbstractTwo kinds of nanocrystalline Tin doped indium oxide (or indium tin oxide: denoted ITO hereafter) powders with different crystal structures – rhombohedral and cubic – were prepared using a coprecipitation method through the control of pH of a mixing solution and aging time after coprecipitation. The two powders have the same particle size of 15 nm in diameter but different morphologies (spherical for rhomboheral and rectangular for cubic). The gaseous ethanol sensing characteristics of the sensors prepared by the two ITO powders were quite different. The sensitivity of rhombohedral ITO sensor was high compared to that of the cubic ITO sensor across all temperatures. The reason for this is explained through the viewpoint of the binding energy of XPS and the surface structure relating to the crystal structure.

scholarly journals Effects of Crystal Structure and Particle Size on Ethanol Gas Sensing Characteristics of Nanocrystalline ITO Thick Film

2004 ◽  
Vol 112 (1305) ◽  
pp. 252-258 ◽  
Author(s):  
Geon-Young CHA ◽  
Won-Woo BAEK ◽  
Sang-Tae LEE ◽  
Jeong-Ok LIM ◽  
Jeung-Soo HUH
Keyword(s):  
Crystal Structure ◽  
Particle Size ◽  
Thick Film ◽  
Gas Sensing ◽  
Sensing Characteristics

Influence of indium–tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

2007 ◽  
Vol 40 (14) ◽  
pp. 4212-4221 ◽  
Author(s):  
Marta Cerruti ◽  
Crissy Rhodes ◽  
Mark Losego ◽  
Alina Efremenko ◽  
Jon-Paul Maria ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Surface Structure ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Oxide Surface ◽  
Thiol Monolayers

Surface Electronic Structure of Nitric-oxide-treated Indium Tin Oxide

2003 ◽  
Vol 796 ◽  
Author(s):  
Hu Jianqiao ◽  
Pan Jisheng ◽  
Furong Zhu ◽  
Gong Hao
Keyword(s):  
Nitric Oxide ◽  
Binding Energy ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Photoelectron Spectroscopy ◽  
Surface Region ◽  
Valence Band Maximum ◽  
Surface Band ◽  
Band Bending ◽  
Surface Electronic Structure

ABSTRACTThe surface electronic properties of the nitric oxide (NO) treated indium tin oxide (ITO) are examined in-situ by a four-point probe and X-ray photoelectron spectroscopy (XPS). The XPS N1s peak emerged at a high binding energy of 404 eV indicating that NO is reactive with ITO. NO adsorption induces an increase of film sheet resistance, arising from an oxygen rich layer near the ITO surface region, with approximately 2.5 nm thick. This implies that the interaction of NO with ITO is occurred around surface region. Valence band maximum measured for NO-absorbed ITO was shifted to the low binding energy side. This is related to the upward surface band bending.

Fabrication of photonic crystal structure on indium tin oxide electrode of GaN-based light-emitting diodes

2010 ◽  
Vol 208 (2) ◽  
pp. 480-483 ◽  
Author(s):  
Kyeong-Jae Byeon ◽  
Hyoungwon Park ◽  
Joong-Yeon Cho ◽  
Ki-Yeon Yang ◽  
Jong Hyeob Baek ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Photonic Crystal Structure ◽  
Oxide Electrode ◽  
Indium Tin Oxide Electrode ◽  
Light Emitting

Indium Tin Oxide Conductive Nanowires Formed by Magnetron Sputtering

2015 ◽  
Vol 1747 ◽  
Author(s):  
Naoki Yamamoto ◽  
Kirihiko Morisawa
Keyword(s):  
Crystal Structure ◽  
Electron Microscope ◽  
Cross Sections ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Elliptical Cross ◽  
Cubic Crystal ◽  
Glass Substrates ◽  
Order Of Magnitude ◽  
Scanning Electron

ABSTRACTIndium tin oxide (ITO) nanowires (NWs) were grown on glass substrates by using ITO sputtering sources (targets) with SnO2 contents in the range of approximately 5.0 to 30.0 wt%. NW growth became apparent at temperatures above 125 °C, and the In, Sn and O contents of the resulting ITO NWs were similar to those of the ITO source. NWs grown from ITO sources containing 5.0 to 12.0 wt% SnO2 had circular or elliptical cross-sections, while those obtained from sources with 12.0 to 30.0 wt% SnO2 exhibited square cross-sections. ITO NWs approximately 2 μm in length were obtained as single crystals with a cubic crystal structure. The resistivity of an ITO NW was measured using four nanoprobes in conjunction with a field emission scanning electron microscope and was found to range from 0.13 to 0.6 μΩ-m, values that were approximately one order of magnitude lower than those of transparent ITO films.

Rapid rate sintering of nanocrystalline indium tin oxide ceramics: particle size effect

2002 ◽  
Vol 52 (1-2) ◽  
pp. 114-119 ◽  
Author(s):  
Bong-Chull Kim ◽  
Joon-Hyung Lee ◽  
Jeong-Joo Kim ◽  
Takayasu Ikegami
Keyword(s):  
Particle Size ◽  
Size Effect ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Particle Size Effect ◽  
Oxide Ceramics ◽  
Rapid Rate
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