Effect of annealing temperature on structural, optical and humidity sensing properties of indium tin oxide (ITO) thin films

Premkumar, M.; Vadivel, S.

doi:10.1007/s10854-017-6566-6

Cited by 24 publications

(26 citation statements)

References 19 publications

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“…ITO was successfully formed by doping Sn into In 2 O 3 , which is consistent with other studies. [26,27] Figure 3a,b shows AFM images of 100 nm ITO on the GaAs substrate. The average roughness (Ra) was 3.11 nm.…”

Section: Resultsmentioning

confidence: 99%

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Indium Tin Oxide with High Carrier‐Collection Capacity and Radiation Resistance for GaInP Solar Cell

Dai

Long

Sun

et al. 2021

Physica Status Solidi (a)

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The crystal structure, light transmittance, and contact resistivity of transparent conducting indium-tin-oxide (ITO) films for a III-V solar cell are studied. The optical transparency of ITO can reach 96% under appropriate annealing conditions. ITO and n þ -GaAs can form Ohmic contacts having a lower contact resistance than those formed with ITO and n þ -GaInP. A specially designed solar cell structure is fabricated to grow the ITO film as the front electrode and thus prevent oxidation of the AlInP window layer. Three different GaInP solar cells with pure ITO and ITO/metal grid electrode structures are designed and compared. The results indicate that the ITO electrode has good carrier-collection ability. After irradiation with 1 MeV energy electrons with an electron fluence of 1 Â 10 15 e cm À2 , the remaining factor of the GaInP solar cells with a pure ITO electrode is %98%. The results indicate that ITO films have significant application potential in space solar cell manufacturing.

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Section: Resultsmentioning

confidence: 99%

“…ITO was successfully formed by doping Sn into In 2 O 3 , which is consistent with other studies. [ 26,27 ]…”

Section: Resultsmentioning

confidence: 99%

Indium Tin Oxide with High Carrier‐Collection Capacity and Radiation Resistance for GaInP Solar Cell

Dai

Long

Sun

et al. 2021

Physica Status Solidi (a)

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“…Change in refractive index of the medium was also considered; however, because refractive index is a reversible phenomenon and all of the optical property measurements were taken at room temperature, it was clear that it has no effect on the shifting spectral properties. Therefore, the main factors contributing to the spectral changes of ITO were the distribution of Sn 4+ throughout In 2 O 3 , reduction of interstitial oxygen, liberation of carriers from Sn–O traps, carrier mobility, and increased order of the In 2 O 3 host matrix. ,,− ,,− …”

Section: Resultsmentioning

confidence: 99%

Optical Properties of Colloidal Indium Tin Oxide Suspended in a Thermal Fluid

et al. 2018

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We investigated changes in the optical properties of indium tin oxide (ITO) nanocrystals as a function of temperature. ITO is a plasmonic, wide-band-gap semiconductor capable of absorbing UV and IR radiation. The nanoparticles were made using a standard two-pot synthesis, which resulted in the formation of ITO nanoparticles with myristic acid and oleylamine as surface passivation ligands. Ligand exchange with (6–7% aminopropylmethylsiloxane)–dimethylsiloxane copolymer allowed dispersion of the particles into a thermal fluid, Duratherm S, which is capable of withstanding working temperatures of 300 °C. Nanoparticles suspended in the fluid were heated over a range of temperatures, and their properties were investigated using IR spectrometry, UV–vis, transmission electron microscopy, and particle size analysis. Although heating showed no change in particle size, spectral changes were clearly observed in the form of a strong blue shift and increased absorbance. These temperature-dependent changes in the spectral properties of ITO were attributed to various factors such as: (i) distribution of tin dopant throughout the nanocrystal to increase the carrier concentration, (ii) removal of interstitial oxygen to reduce electron scavenging, (iii) increased order in the In2O3 structure to enhance carrier mobility, and (iv) reduction in electron traps of tin–oxygen complexes.

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“…ITO conductive film is a semiconductor oxide material with high visible light transmission, high mechanical strength and high chemical stability, which is commonly used in industrial applications [ 21 , 22 ]. In cases 2 and 3, glass substrates are deposited with ITO films for realizing the radiator and ground plane by magnetron sputtering.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Metallization Schemes on Glass Dielectrics for X-Band Glass Antennas and Energy Harvesting

Cai

2021

Materials

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We prepare and test four types of glass antennas for X-band applications and energy harvesting. These antennas are made of three different glass metallization schemes, including conductive copper foil (CCF), conductive silver paste (CSP) and indium tin oxide (ITO) thin film. Compared with conventional microstrip patch antennas, the dielectric substrate materials of these designs are replaced with silicon-boron glass (εr = 6, tangent δ = 0.002). The antenna with CCF as a radiator and ground plane (case one) is compared with the antenna with ITO replacing the radiator (case two) and ground plane (case three), respectively, and the glass antenna made of CSP (case four) is also presented. In this paper, these four types of glass antennas are measured and analyzed, and a comparison of the fabrication process and performance of these antennas is demonstrated. This study could contribute to the development of human-machine interactivity (HMI) systems with glass dielectric substrates.

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Effect of annealing temperature on structural, optical and humidity sensing properties of indium tin oxide (ITO) thin films

Cited by 24 publications

References 19 publications

Indium Tin Oxide with High Carrier‐Collection Capacity and Radiation Resistance for GaInP Solar Cell

Indium Tin Oxide with High Carrier‐Collection Capacity and Radiation Resistance for GaInP Solar Cell

Optical Properties of Colloidal Indium Tin Oxide Suspended in a Thermal Fluid

Comparison of Metallization Schemes on Glass Dielectrics for X-Band Glass Antennas and Energy Harvesting

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