p-Type conductivity in the delafossite structure

Nagarajan, Rajamani; Duan, Ning; Jayaraj, M. K.; Li, J; Vanaja, K.; Yokochi, Alex; Draeseke, A. D.; Tate, Janet; Sleight, A.W.

doi:10.1016/s1466-6049(01)00006-x

Cited by 222 publications

(182 citation statements)

References 28 publications

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“…In particular, oxide materials have been studied intensively since the first report of p-type transparent CuAlO 2 [6]. One of the better performing p-type transparent conducting oxides (TCOs) is CuCrO 2 :Mg [7]. Despite its promising properties, the processing of this doped ternary oxide remains challenging and large variations in electrical properties depending on growth conditions have been reported [8].…”

Section: Introductionmentioning

confidence: 99%

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

et al. 2015

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a b s t r a c t a r t i c l e i n f oWe present an analysis of the Raman spectra of p-type transparent conducting Cr 2 O 3 :Mg grown by various techniques including spray pyrolysis, pulsed laser deposition, molecular beam epitaxy and reactive magnetron sputtering. The best performing films show a distinct broad range Raman signature related to defect-induced vibrational modes not seen in stoichiometric, undoped material. Our comparative study demonstrates that Raman spectroscopy can quantify unwanted dopant clustering in the material at high Mg concentrations, while also being sensitive to the Mg incorporation site. By correlating the Raman signature to the electrical properties of the films, growth processes can be optimised to give the best conducting films and the local defect structure for effective p-type doping can be studied.

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Section: Introductionmentioning

confidence: 99%

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

et al. 2015

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“…There have been many discussions in the literature about the influence of the size and electronic structure of the trivalent metal cation on conductivity [19][20][21]. Delafossites and Cu I oxides in general are considered to be polaronic [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36], and as such it is expected that the Cu-Cu distances should play a part in any conductivity, with holes expected to hop from Cu to Cu [36].…”

Section: Introductionmentioning

confidence: 99%

Chemical bonding in copper-based transparent conducting oxides: CuMO₂(M = In, Ga, Sc)

Godinho

Morgan

Allen

et al. 2011

J. Phys.: Condens. Matter

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The geometry and electronic structure of copper-based p-type delafossite transparent conducting oxides, CuMO 2 (M = In, Ga, Sc), are studied using the generalized gradient approximation (GGA) corrected for on-site Coulomb interactions (GGA + U ). The bonding and valence band compositions of these materials are investigated, and the origins of changes in the valence band features between group 3 and group 13 cations are discussed. Analysis of the effective masses at the valence and conduction band edge explains the experimentally reported conductivity trends.

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“…7 It is thus of great importance to investigate the origins behind p-type conductivity in these materials so that new improved TCOs can be designed.…”

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confidence: 99%

Understanding conductivity in SrCu₂O₂: stability, geometry and electronic structure of intrinsic defects from first principles

et al. 2010

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p-Type conductivity in the delafossite structure

Cited by 222 publications

References 28 publications

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

Chemical bonding in copper-based transparent conducting oxides: CuMO₂(M = In, Ga, Sc)

Understanding conductivity in SrCu₂O₂: stability, geometry and electronic structure of intrinsic defects from first principles

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p-Type conductivity in the delafossite structure

Cited by 222 publications

References 28 publications

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

Raman spectra of p-type transparent semiconducting Cr2O3:Mg

Chemical bonding in copper-based transparent conducting oxides: CuMO2(M = In, Ga, Sc)

Understanding conductivity in SrCu2O2: stability, geometry and electronic structure of intrinsic defects from first principles

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Chemical bonding in copper-based transparent conducting oxides: CuMO₂(M = In, Ga, Sc)

Understanding conductivity in SrCu₂O₂: stability, geometry and electronic structure of intrinsic defects from first principles