Physical and photoelectrochemical characterization of CuCrO2 single crystal

Ketir, W.; Saadi, S.; Trari, M.

doi:10.1007/s10008-011-1307-x

Cited by 20 publications

(13 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…111 Similar anisotropic ratio (~30 times) has also been reported for CuCrO2 single crystals. 112 28 The electronic structure of CuCrO2 has been found to be very similar to that of other Cu + -based oxides: Cu 3d 10 intermix strongly with O 2p 6 to form the top of VB . 29,114,117 The role of Cr 3d states has been a matter of debate, because it is experimentally difficult to pinpoint the energy position of Cr 3d state.…”

Section: Crystal Structures and Thin Film Growthmentioning

confidence: 76%

P-type transparent conducting oxides

Zhang

Blamire

et al. 2016

J. Phys.: Condens. Matter

330

256

View full text Add to dashboard Cite

Transparent conducting oxides constitute a unique class of materials combining properties of electrical conductivity and optical transparency in a single material. They are needed for a wide range of applications including solar cells, flat panel displays, touch screens, light emitting diodes and transparent electronics. Most of the commercially available TCOs are n-type, such as Sn doped In2O3, Al doped ZnO, and F doped SnO2. However, the development of efficient p-type TCOs remains an outstanding challenge. This challenge is thought to be due to the localized nature of the O 2p derived valence band which leads to difficulty in introducing shallow acceptors and large hole effective masses. In 1997 Hosono and co-workers (1997 Nature 389 939) proposed the concept of 'chemical modulation of the valence band' to mitigate this problem using hybridization of O 2p orbitals with close-shell Cu 3d (10) orbitals. This work has sparked tremendous interest in designing p-TCO materials together with deep understanding the underlying materials physics. In this article, we will provide a comprehensive review on traditional and recently emergent p-TCOs, including Cu(+)-based delafossites, layered oxychalcogenides, nd (6) spinel oxides, Cr(3+)-based oxides (3d (3)) and post-transition metal oxides with lone pair state (ns (2)). We will focus our discussions on the basic materials physics of these materials in terms of electronic structures, doping and defect properties for p-type conductivity and optical properties. Device applications based on p-TCOs for transparent p-n junctions will also be briefly discussed.

show abstract

Section: Crystal Structures and Thin Film Growthmentioning

confidence: 76%

P-type transparent conducting oxides

Zhang

Blamire

et al. 2016

J. Phys.: Condens. Matter

330

256

View full text Add to dashboard Cite

show abstract

“…shaped linear coordination to oxygen anions in the adjacent CrO 6 layers [82,83]. The Cr cation is located in the centre of the distorted edge-shared CrO 6 , and it has a ?…”

Section: Structure Of Cucro 2 Delafossitementioning

confidence: 99%

“…Nevertheless, the delafossite has been consistently proposed to exhibit electrical transport limited by small polaron hopping [83,103,126,196,215,256,257]. This can be justified by the high effective mass, due to the polaronic interaction between carriers and the lattice.…”

Section: Conduction Mechanism In Cucromentioning

confidence: 99%

“…-O twofold coordination induces a dumbbell-shaped structure O-A-O unit placed parallel to the c-axis that connects to the adjacent M 3? O 6 octahedra [81][82][83][84]. Each O from the dumbbell is also coordinated to three M 3?…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

“…It has been reported that this delafossite structure allows the hosting of a multitude of M cations, namely p-block elements (Al [49,103,104], B [105][106][107], Ga [54,108,109] or In [110][111][112][113]), transition metals (Co [114,115], Cr [82,116,117], Fe [118][119][120], Mn [121,122], Rh [123], Sc [124][125][126] and Y [89,[126][127][128]), or lanthanides (La [129][130][131], Nd [132], Pr [133], Sm and Eu [134]). These materials were thoroughly investigated as they demonstrated interesting properties in the different fields: antibacterial [135,136], batteries [137], (photo)catalyse [83,131,[138][139][140], luminescence [130], magnetic …”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A review on the p-type transparent Cu–Cr–O delafossite materials

et al. 2022

View full text Add to dashboard Cite

Transparent conductive oxides (TCOs) constitute a class of materials that combine high electrical conductivity and optical transparency. These features led to the development of the transparent electronics applications, such as flat panel displays, “smart” windows or functional glasses. N-type TCOs dominate the applications market, and the lack of a suitable p-type counterpart limits the fabrication of a completely transparent active device, which might be considered as a technological breakthrough. Among the wide range of p-type candidates, delafossite CuCrO2 (and its out-of-stoichiometry derivatives) is a promising material to achieve the desired p-type TCO properties as, up to date, it is presenting the foremost trade-off between optical and electrical properties. The present paper covers the research work and the major achievements related to copper chromium delafossite. A comprehensive overview of fabrication methods and opto-electronic properties is presented. The source of doping and the charge carriers transport mechanism are also thoroughly discussed. Graphical abstract

show abstract