Recent developments in the emerging field of crystalline p-type transparent conducting oxide thin films

Banerjee, Arghya Narayan; Chattopadhyay, Kalyan Kumar

doi:10.1016/j.pcrysgrow.2005.10.001

Cited by 334 publications

(182 citation statements)

References 200 publications

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“…However, transparent conducting oxides (TCO) [1][2][3][4][5] are good electrical conductors and simultaneously transparent to optical photons. Depending upon the donor or acceptor level in the band gap of such a material these are classified as either p-type or n-type TCO.…”

Section: Introductionmentioning

confidence: 99%

“…Due to this unique combination of optical transparency and electrical conductivity, these materials have found enormous practical applications in devices requiring transparent contacts such as solar cells [6], LCD displays [7], low thermal remittance coatings [8], light emitting diodes [9], electro-chromatic materials for smart windows [10] etc. In fact following the discovery of p-type conductivity in CuAlO 2 , it has been found that there exist a series of ABO 2 type compounds (A: monovalent cations: Cu, Ag; B: trivalent cations: Al, Ga, In, Cr, Fe, Co, lanthanides) which crystallize in delafossite structure and show p-type conductivity (CuInO 2 shows bipolar conductivity) [11][12][13]. The origin of positive carriers in un-doped delafossites is either due to excess oxygen in the interstitials or copper vacancies.…”

Section: Introductionmentioning

confidence: 99%

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Multiferroic CuCrO2 under high pressure: In situ X-ray diffraction and Raman spectroscopic studies

Garg

Mishra

Pandey

et al. 2014

Journal of Applied Physics

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiferroic CuCrO2 under high pressure: In situ X-ray diffraction and Raman spectroscopic studies

Garg

Mishra

Pandey

et al. 2014

Journal of Applied Physics

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“…Up to now, only some reports exist in the literature on thin oxide films with p-type electrical conduction. There are mainly materials based on Cu [5,6]. While most of n-type TOS are transparent in the visible range of light spectrum, p-type doping with different metal ions usually results in light absorption and the films become opaque.…”

Section: Introductionmentioning

confidence: 99%

Optical and electrical properties of nanocrystalline TiO2:Pd semiconducting oxides

et al. 2011

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Abstract:Electrical and optical properties of TiO 2 :Pd thin films deposited from Ti-Pd mosaic targets sputtered in reactive oxygen plasma have been studied. The properties were investigated for thin films with the Pd amount of 5.5 at. %, 8.4 at. % and 23 at. %. Based on resistivity measurements a drop from 10 3 down to almost 10 −3 Ωcm has been recorded when the Pd amount was varied from 5.5 at. % to 23 at. %, respectively. Moreover, it was shown that doping with different amounts of Pd results in the possibility of obtaining both types of electrical conduction: n-type for the TiO 2 with 5.5 at. % and 8.4 at. % of Pd and ptype for the TiO 2 with 23 at. % of Pd thin films. From optical measurements it has been found that as the Pd amount was increased the transmission through the thin films was reduced and position of the fundamental absorption edge was shifted toward a longer wavelength range of up to 600 nm. The optical band gap was calculated for direct and indirect transitions from optical absorption spectra. Structural properties were characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The XRD patterns displayed occurrence of the crystalline, TiO 2 -rutile for lower Pd amounts (5.5 at. %, 8.4 at. %), while the TiO 2 :Pd (23 at. %) thin films displayed XRD-amorphous behaviour. Images obtained from AFM displayed dense, nanocrystalline structure with homogenous distribution of crystallites. Additionally performed secondary ion mass spectroscopy investigation confirmed homogenous distribution of Pd in the whole thickness of the prepared thin films. PACS

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“…Transparent conductive oxide (TCO) thin films, exhibiting both high electrical conductivity and optical transparency in the UV-visible region, have been studied for various transparent electronics applications, such as solar cells, liquid crystal displays (LCD), organic light emitting diodes (OLED), and touch display panels [1][2][3]. Among TCO thin films, tin oxide (SnO 2 ) -based thin films have drawn significant attention, due to their low electrical resistance, associated with high optical transparency in the visible region, and high stability in mechanical and chemical resistance [4,5].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Sol-Gel Derived Antimony-doped Tin Oxide Thin Films for Transparent Conductive Oxide Application

Woo¹,

Koo²,

Chan³

et al. 2012

Transactions on Electrical and Electronic Materials

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Antimony doped tin oxide (ATO) thin films on glass substrate were prepared by the chemical solution deposition (CSD) method, using sol-gel solution synthesized by non-alkoxide precursors and the sol-gel route. The crystallinity and electrical properties of ATO thin films were investigated as a function of the annealing condition (both annealing environments and temperatures), and antimony (Sb) doping concentration. Electrical resistivity, carrier concentration, Hall mobility and optical transmittance of ATO thin films were improved by Sb doping up to 5~8 mol% and annealing in a low vacuum atmosphere, compared to the undoped tin oxide counterpart. 5 mol% Sb doped ATO film annealed at 550℃ in a low vacuum atmosphere showed the highest electrical properties, with electrical resistivity of about 8~10 × 10 -3 Ω·cm, and optical transmittance of ~85% in the visible range. Our research demonstrates the feasibility of low-cost solution-processed transparent conductive oxide thin films, by controlling the appropriate doping concentration and annealing conditions.

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Recent developments in the emerging field of crystalline p-type transparent conducting oxide thin films

Cited by 334 publications

References 200 publications

Multiferroic CuCrO2 under high pressure: In situ X-ray diffraction and Raman spectroscopic studies

Multiferroic CuCrO2 under high pressure: In situ X-ray diffraction and Raman spectroscopic studies

Optical and electrical properties of nanocrystalline TiO2:Pd semiconducting oxides

Characterization of Sol-Gel Derived Antimony-doped Tin Oxide Thin Films for Transparent Conductive Oxide Application

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