Raman spectra of the orthorhombic semiconductor compound Cu2SnTe3

Marcano, G.; Power, Ch.; Rincón, C.; Molina, I.; Nieves, Luis

doi:10.1016/j.ssc.2010.12.038

Cited by 8 publications

(11 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To assign the Raman modes for CT1.6, which is a mixture of tetragonal and trigonal structures, CuInTe 2 could provide better similarity . Cu 2 SnTe 3 crystallizes in orthorhombic structure, whereas CuInTe 2 has a tetragonal structure. , Similar to CuInTe 2 , the low frequency mode ∼ 41 cm –1 is observed in CT1.6 and can be assigned to E symmetry. Further, the modes ∼ 114 and 189 cm –1 are in close agreement with the modes observed in CuInTe 2 and assigned to B 1 and E symmetries, respectively.…”

Section: Results and Discussionmentioning

confidence: 91%

“…41 Cu 2 SnTe 3 crystallizes in orthorhombic structure, whereas CuInTe 2 has a tetragonal structure. 38,39 Similar to CuInTe 2 , the low frequency mode ∼ 41 cm −1 is observed in CT1. 6 and can be assigned to E symmetry.…”

Section: ■ Results and Discussionmentioning

confidence: 93%

“…The origins of the modes ∼41, 114, 153, and 189 cm –1 need further investigation. CT1.25 compound shows notable similarity with the Raman spectra of Cu 2 SnTe 3 owing to orthorhombic structure with respect to frequency as well as symmetry . To assign the Raman modes for CT1.6, which is a mixture of tetragonal and trigonal structures, CuInTe 2 could provide better similarity .…”

Section: Results and Discussionmentioning

confidence: 99%

“…CT1.25 compound shows notable similarity with the Raman spectra of Cu 2 SnTe 3 owing to orthorhombic structure with respect to frequency as well as symmetry. 38 To assign the Raman modes for CT1.6, which is a mixture of tetragonal and trigonal structures, CuInTe 2 could provide better similarity. 41 Cu 2 SnTe 3 crystallizes in orthorhombic structure, whereas CuInTe 2 has a tetragonal structure.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Pandey

Mukherjee

Rawat

et al. 2020

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Superionic Cu 2-x Te (CT) is an interesting and emerging p-type thermoelectric (TE) material due to the existence of various polymorphic phases and crystal structures, which undergo several structural phase transitions. On the basis of the stoichiometry of the CT compounds, the structure parameters, the carrier concentration (n p ), and the thermal conductivity (κ) can be modulated for optimum TE performance. Further, the understanding of the fundamental properties and their impact on TE parameters is not well understood because of their complex structures. We have investigated the vibrational properties of CT compounds such as Cu 1.25 Te (CT1.25), Cu 1.6 Te (CT1.6), and Cu 2 Te (CT2) using temperature dependent Raman studies in the temperature range of 300−773 K. Several structural phases are probed through remarkably distinct spectra for the CT compounds. The temperature transitions are complex such as (i) eutectic melting into CuTe and Te for both CT1.6 (above ∼593 K) and CT1.25 (above ∼613 K) and (ii) the structural transition from trigonal to orthorhombic and cubic phase for CT2 (above ∼553 K), which are strongly manifested in the Raman study. Further, the role of n p in the Raman spectra has also been investigated. The intensity of the Raman modes (>100 cm −1 ) showed strong n p dependence due to strong plasmon−phonon coupling. The analysis of full width at half-maximum (fwhm) of Raman peaks and qualitative estimation of phonon lifetime (τ i ) showed that CT2 has the minimum lattice thermal conductivity.

show abstract

Section: Results and Discussionmentioning

confidence: 91%

Section: ■ Results and Discussionmentioning

confidence: 93%

Section: Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Pandey

Mukherjee

Rawat

et al. 2020

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…For Cu 2 GeTe 3 , to the best of our knowledge, no Raman studies have been reported. However, since for the Cu 2 B IV X VI 3 ternary compounds main Raman peaks observed are related to vibrations of the X VI anion [30][31][32], it is expected that Raman spectrum for Cu 2 SnTe 3 [33] should be similar to that of Cu 2 GeTe 3 . Thus, lines at 123 and 142 cm À1 of the present spectrum which coincides with those of the main lines reported for Cu 2 SnTe 3 are tentatively assigned to Cu 2 GeTe 3 .…”

Section: Raman Spectroscopy Analysismentioning

confidence: 99%

Structural characterization of the high‐temperature modification of the Cu₂ZnGeTe₄ quaternary semiconductor compound

Nieves

Delgado

Marcano

et al. 2016

Physica Status Solidi (b)

Self Cite

View full text Add to dashboard Cite

A combined study of the X-ray powder diffraction, differential thermal analysis, optical absorption, and Raman spectroscopy of the high-temperature modification of Cu 2 ZnGeTe 4 quaternary semiconductor, obtained by fast quenching from 820 K to ice water temperature, has been done. It has been found that this phase crystallizes in a tetragonal kesterite-type structure. From the analysis of the absorption coefficient spectra, the band gap energy of this material at room temperature has been found to be 1.49 eV. An optical transition from defect acceptor states to the conduction band is also observed below the fundamental absorption edge. Three strongest Raman lines observed at 116, 119, and 139 cm À1 have been assigned to the A-symmetry modes. Also, lines at 81, 89, 97, and 263 cm À1 tentatively ascribed as B or E-symmetry modes have been detected from the spectrum. The presence in this hightemperature modification of ZnTe and Cu 2 GeTe 3 secondary phases has been detected by both XRD and Raman spectroscopy.

show abstract

Investigations on Cu3SnS4 thin films prepared by spray pyrolysis

et al. 2014

View full text Add to dashboard Cite

Raman spectra of the orthorhombic semiconductor compound Cu2SnTe3

Cited by 8 publications

References 31 publications

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Structural characterization of the high‐temperature modification of the Cu₂ZnGeTe₄ quaternary semiconductor compound

Investigations on Cu3SnS4 thin films prepared by spray pyrolysis

Contact Info

Product

Resources

About

Raman spectra of the orthorhombic semiconductor compound Cu2SnTe3

Cited by 8 publications

References 31 publications

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu2–xTe

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu2–xTe

Structural characterization of the high‐temperature modification of the Cu2ZnGeTe4 quaternary semiconductor compound

Investigations on Cu3SnS4 thin films prepared by spray pyrolysis

Contact Info

Product

Resources

About

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Raman Spectroscopy Study of Phonon Liquid Electron Crystal in Copper Deficient Superionic Thermoelectric Cu_2–xTe

Structural characterization of the high‐temperature modification of the Cu₂ZnGeTe₄ quaternary semiconductor compound