Investigation of the valence band structure of PbSe by optical and transport measurement

Thomas C. Chasapis, Yeseul Lee, Georgios S. Polymeris, Eleni C. Stefanaki, Euripides Hatzikraniotis, Xiaoyuan Zhou, Ctirad Uher, Konstantinos M. Paraskevopoulos, Mercouri G Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We investigated the valence band structure of PbSe by a combined study of the optical and transport properties of p-type Pb1-xNaxSe, with Na concentrations ranging from 0-4%, yielding carrier densities in a wide range of 1018 - 1020 cm-3. Room temperature infrared reflectivity studies showed that the susceptibility (or conductivity) effective mass m* increases from ∼ 0.06mo to ∼ 0.5mo on increasing Na content from 0.08% to 3%. The Seebeck coefficient scales with doping in the whole temperature range, yielding lower values for higher Na contents, while the Hall coefficient increases on heating from room temperature showing a peak close to 650 K. The room temperature Pisarenko plot is well described by the simple parabolic band model up to ∼ 1·1020 cm-3. In order to describe the behaviour in the whole concentration range, the application of the two band model, i.e. light hole and heavy hole, was used giving density of states effective masses 0.28mo and 2.5mo for the two bands respectively.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages75-81
Number of pages7
Volume1490
DOIs
Publication statusPublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 25 2012Nov 30 2012

Other

Other2012 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/25/1211/30/12

Fingerprint

Valence bands
optical measurement
Band structure
valence
room temperature
Temperature
Seebeck coefficient
Seebeck effect
Transport properties
Carrier concentration
Hall effect
Optical properties
transport properties
plots
Doping (additives)
Infrared radiation
magnetic permeability
reflectance
Heating
optical properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Chasapis, T. C., Lee, Y., Polymeris, G. S., Stefanaki, E. C., Hatzikraniotis, E., Zhou, X., ... Kanatzidis, M. G. (2013). Investigation of the valence band structure of PbSe by optical and transport measurement. In Materials Research Society Symposium Proceedings (Vol. 1490, pp. 75-81) https://doi.org/10.1557/opl.2013.150

Investigation of the valence band structure of PbSe by optical and transport measurement. / Chasapis, Thomas C.; Lee, Yeseul; Polymeris, Georgios S.; Stefanaki, Eleni C.; Hatzikraniotis, Euripides; Zhou, Xiaoyuan; Uher, Ctirad; Paraskevopoulos, Konstantinos M.; Kanatzidis, Mercouri G.

Materials Research Society Symposium Proceedings. Vol. 1490 2013. p. 75-81.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chasapis, TC, Lee, Y, Polymeris, GS, Stefanaki, EC, Hatzikraniotis, E, Zhou, X, Uher, C, Paraskevopoulos, KM & Kanatzidis, MG 2013, Investigation of the valence band structure of PbSe by optical and transport measurement. in Materials Research Society Symposium Proceedings. vol. 1490, pp. 75-81, 2012 MRS Fall Meeting, Boston, MA, United States, 11/25/12. https://doi.org/10.1557/opl.2013.150
Chasapis TC, Lee Y, Polymeris GS, Stefanaki EC, Hatzikraniotis E, Zhou X et al. Investigation of the valence band structure of PbSe by optical and transport measurement. In Materials Research Society Symposium Proceedings. Vol. 1490. 2013. p. 75-81 https://doi.org/10.1557/opl.2013.150
Chasapis, Thomas C. ; Lee, Yeseul ; Polymeris, Georgios S. ; Stefanaki, Eleni C. ; Hatzikraniotis, Euripides ; Zhou, Xiaoyuan ; Uher, Ctirad ; Paraskevopoulos, Konstantinos M. ; Kanatzidis, Mercouri G. / Investigation of the valence band structure of PbSe by optical and transport measurement. Materials Research Society Symposium Proceedings. Vol. 1490 2013. pp. 75-81
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AB - We investigated the valence band structure of PbSe by a combined study of the optical and transport properties of p-type Pb1-xNaxSe, with Na concentrations ranging from 0-4%, yielding carrier densities in a wide range of 1018 - 1020 cm-3. Room temperature infrared reflectivity studies showed that the susceptibility (or conductivity) effective mass m* increases from ∼ 0.06mo to ∼ 0.5mo on increasing Na content from 0.08% to 3%. The Seebeck coefficient scales with doping in the whole temperature range, yielding lower values for higher Na contents, while the Hall coefficient increases on heating from room temperature showing a peak close to 650 K. The room temperature Pisarenko plot is well described by the simple parabolic band model up to ∼ 1·1020 cm-3. In order to describe the behaviour in the whole concentration range, the application of the two band model, i.e. light hole and heavy hole, was used giving density of states effective masses 0.28mo and 2.5mo for the two bands respectively.

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