Thermoelectric Properties of Solid Solutions PbSnAgTe

Haluschak, M. O.; Horichok, I. V.; Semko, T. O.; Mydryi, S. I.; Optasyuk, S. V.; Dzumedzey, R.O.

doi:10.15330/pcss.18.2.211-214

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solid solutions of PbSnAgTe (LATT) have been proposed as materials for p-branches of heat generators in [11]. According to [11], they, like LAST, are multiphase, which ensures the achievement of the required for practical use of low values of thermal conductivity. In [12,13] solid solutions of PbSnAgTe obtained by thermal evaporation in vacuum were studied.…”

Section: Introductionmentioning

confidence: 99%

Temperature Dependencies of Electrical Properties of Thin Films Based on PbSnAgTe Solid Solutions

Dzumedzey

Saliy

Horichok

2020

Phys. Chem. Solid St.

Self Cite

View full text Add to dashboard Cite

The electrical properties of thin polycrystalline films of solid solutions Pb18Ag2Te20, Pb16Sn2Ag2Te20, and Pb14Sn4Ag2Te20 (LATT) on mica-muscovite substrates have been investigated. The temperature dependencies of concentration and mobility of charge carriers for these condensates are researched. Predominant scattering mechanisms are established. These are scattering on ionized impurities and acoustic phonons at low and high temperatures respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Temperature Dependencies of Electrical Properties of Thin Films Based on PbSnAgTe Solid Solutions

Dzumedzey

Saliy

Horichok

2020

Phys. Chem. Solid St.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main advantage of lead chalcogenides (PbTe, PbSe, and PbS) is the small band gap (for example, 0.278 eV for PbSe at 300 K) [1]. This property is of great importance in infrared optics, lasers, light emitting devices, photovoltaics, and medium-temperature thermoelectric devices [2][3][4][5]. Therefore, in recent decades the purposeful work to find optimal conditions for their synthesis and application has been done.…”

Section: Introductionmentioning

confidence: 99%

Account of surface contribution to thermodynamic properties of lead selenide films

Nykyruy¹

2019

Semicond. phys. quantum electron. optoelectron

View full text Add to dashboard Cite

Being based on the density functional theory (DFT), computer simulation of the surface effect on thermodynamic parameters of lead selenide (PbSe) has been performed in this work. Applying the thermodynamic approach, the choice of model for the plane PbSe [200] preferred orientations has been justified, which indicates domination of the energy of surface states, while minimization of interface energy and deformation are less important in overall changing the free energy. The thermodynamic parameters for the surface of crystals and their temperature dependences in the framework of DFT method and using the hybrid functional B3LYP have been calculated, namely: energy ∆E, enthalpy ∆H, Gibbs' free energy ∆G, isobaric heat capacities C P and isovolume heat capacities C V , entropy ∆S. The analytical expressions of temperature dependences for these thermodynamic parameters approximated using quantum-chemical calculation data have been obtained. The analysis of temperature dependences for the heat capacity corresponds to the experimental data and the Djulong-Pti law.

show abstract

Thermoelectric Properties of Solid Solutions PbSnAgTe

Cited by 2 publications

References 0 publications

Temperature Dependencies of Electrical Properties of Thin Films Based on PbSnAgTe Solid Solutions

Temperature Dependencies of Electrical Properties of Thin Films Based on PbSnAgTe Solid Solutions

Account of surface contribution to thermodynamic properties of lead selenide films

Contact Info

Product

Resources

About