Synthesis and characterization of electrodeposited lead telluride films on copper and stainless steel substrate

Gite, Anil B.; Palve, Balasaheb M.; Gaikwad, Vishwasrao B.; Jain, G. H.; Pathan, Habib M.

doi:10.1088/2053-1591/ab118b

Cited by 5 publications

(5 citation statements)

References 35 publications

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“…FTIR transmittance bands are summarized in Table 3 . The FTIR spectra of sample well matched with those reported earlier [ 54 , 60 , 61 , 62 , 63 ].…”

Section: Resultssupporting

confidence: 87%

“…FTIR transmittance bands are summarized in Table 3. The FTIR spectra of sample well matched with those reported earlier [54,[60][61][62][63]. FTIR spectra of the sample A5 show that the strong absorption bands at 1572 cm −1 , 1270 cm −1 , and 1385 cm −1 are attributed to stretching vibrations of the carboxylate groups in the film.…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)supporting

confidence: 86%

“…The bands around 1107 cm −1 to 1409 cm −1 might originate from –C–N stretching, –CH 2 scissoring mode of vibration, and –OH bending mode. The bands between 781–907 cm −1 reveal vibrations of ternary amines with –CH 2 rocking modes [ 54 , 60 , 61 ].…”

Section: Resultsmentioning

confidence: 99%

“…The bands around 1107 cm −1 to 1409 cm −1 might originate from -C-N stretching, -CH 2 scissoring mode of vibration, and -OH bending mode. The bands between 781-907 cm −1 reveal vibrations of ternary amines with -CH 2 rocking modes [54,60,61]. FTIR spectra of the sample A5 show that the strong absorption bands at 1572 cm −1 , 1270 cm −1 , and 1385 cm −1 are attributed to stretching vibrations of the carboxylate groups in the film.…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 97%

“…However, the chemical synthesis of the PbTe material is easy and not frequently used due to the problem of hydrolysis of Te when compared to hydrothermal and solvothermal techniques, as well as solution phase synthesis and electro-deposition techniques [16,45,47,[49][50][51][52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

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A Facile Chemical Synthesis of PbTe Nanostructures at Room Temperature

Gite

Palve

Gaikwad³

et al. 2020

Nanomaterials

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Thermoelectric (TE) materials are possible solutions of the current problems in the energy sector to overcome environmental pollution, increasing energy demand and the decline of natural resources. Thermoelectric materials are a promising alternative for the conversion of waste heat to electricity. Nanocrystalline PbTe powder was synthesized by a simple chemical method at room temperature and systematically investigated at various durations as samples A1–A5. Fourier Transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), microstructural analysis by scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) confirmed the composition of the samples. TE parameters as thermo-emf of samples A1–A5 and electrical conductivity were measured. The cyclic voltammetry gives a band gap of 0.25 eV, which is in agreement with the optical band gap of the material. The A4 sample has an average crystal size of 36 nm with preferred orientation in (200) verifying the cubic morphology. The obtained TE parameters are beneficial for the non-uniform TE materials which might be due to strong current boundary scattering and extremely low thermal conductivity of the samples.

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“…FTIR transmittance bands are summarized in Table 3 . The FTIR spectra of sample well matched with those reported earlier [ 54 , 60 , 61 , 62 , 63 ].…”

Section: Resultssupporting

confidence: 87%

Section: Fourier-transform Infrared Spectroscopy (Ftir)supporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Facile Chemical Synthesis of PbTe Nanostructures at Room Temperature

Gite

Palve

Gaikwad³

et al. 2020

Nanomaterials

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Thermoelectric Enhancements in PbTe Alloys Due to Dislocation‐Induced Strains and Converged Bands

Nan

Chen

et al. 2020

Advanced Science

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In‐grain dislocation‐induced lattice strain fluctuations are recently revealed as an effective avenue for minimizing the lattice thermal conductivity. This effect could be integratable with electronic enhancements such as by band convergence, for a great advancement in thermoelectric performance. This motivates the current work to focus on the thermoelectric enhancements of p‐type PbTe alloys, where monotelluride‐alloying and Na‐doping are used for a simultaneous manipulation on both dislocation and band structures. As confirmed by synchrotron X‐ray diffractions and Raman measurements, the resultant dense in‐grain dislocations induce lattice strain fluctuations for broadening the phonon dispersion, leading to an exceptionally low lattice thermal conductivity of ≈0. 4 W m‐K−1. Band structure calculations reveal the convergence of valence bands due to monotelluride‐alloying. Eventually, the integration of both electronic and thermal improvements lead to a realization of an extraordinary figure of merit zT of ≈2.5 in Na0.03Eu0.03Cd0.03Pb0.91Te alloy at 850 K.

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