Nano-crystalline Ag–PbTe thermoelectric thin films by a multi-target PLD system

Cappelli, E.; Bellucci, A.; Medici, Luca; Mezzi, A.; Kačiulis, S.; Fumagalli, Francesco; Fonzo, Fabio Di; Trucchi, Daniele M.

doi:10.1016/j.apsusc.2014.12.031

Cited by 23 publications

(12 citation statements)

References 36 publications

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“…In the next experiments, this aspect will be carefully taken into account. In parallel, thermoelectric nanostructured materials are under development to fabricate higher-operating-temperature higher-efficiency TE modules 12,13 .…”

Section: Thermoelectric Modulementioning

confidence: 99%

Preliminary characterization of ST2G: Solar thermionic-thermoelectric generator for concentrating systems

Bellucci

Calvani

Cappelli

et al. 2015

AIP Conference Proceedings

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Section: Thermoelectric Modulementioning

confidence: 99%

Preliminary characterization of ST2G: Solar thermionic-thermoelectric generator for concentrating systems

Bellucci

Calvani

Cappelli

et al. 2015

AIP Conference Proceedings

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“…Highly textured Ca 3 Co 4 O 9 thin films have been successfully deposited on a wide variety of substrates yielding power factors which are improved with respect to cold pressed and sintered bulk materials primarily due to the reduction of electrical resistivity [22,23]. Several groups are working on transitioning these thin films directly into thermoelectric generators [1,20,24]; however, this enhancement via texturing can also be realized in bulk Ca 3 Co 4 O 9 via hot pressing, spark plasma sintering [25], or tape casting [26][27][28].…”

Section: Pulsed Laser Depositionmentioning

confidence: 99%

Material optimization via combinatorial deposition and analysis for thermoelectric thin films

2015

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“…For a better perspective, Sebeck coefficient � = ∆ � at the 100 C o temperature difference of all the samples is presented in Table 2. Decreased carrier density causes an increase in the Seebeck coefficient (Cappelli, et al 2015).…”

Section: Electrical Propertiesmentioning

confidence: 99%

The effect of copper doping on the structural, optical, and electrical properties of cadmium oxide thin films using the spray pyrolysis technique

Davari

Fadavieslam

2021

Preprint

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In this study, the pure and Cu doped CdO thin films with various doping concentrations (0 to 5 at.%) were deposited on soda-lime glass substrates, using the chemical spray pyrolysis technique. The effects of Cu doping on the structural, optical, and electrical properties of thin films were, then, investigated. The films were characterized through X-ray diffraction (XRD), field emission scanning electron microscopy equipped with an energy dispersive x-ray analyzer (FESEM-EDX), atomic force microscopy (AFM), ultraviolet-visible spectroscopy, and electrical resistance; van der Pauw techniques were also used to measure the Hall effect. X-ray diffraction studies showed that the thin films were polycrystalline only with cadmium oxide phase with the cubic face-centered crystal structure and the preferred orientations were along (111), (200), (220), (311), and (311) planes. The FE-SEM and AFM images also showed that with an increase in Cu doping levels, the grain size and surface roughness of the thin films decreased from 472 to 38 nm and from 163 to 54 nm, respectively. The expected element compositions were confirmed by EDX. The optical bandgap of the thin films ranged from 2.42 to 2.56 eV, and as Cu dopant increased, so, too, the optical bandgap. As the Cu doping concentration increased from 0 to 5 (at.%), the electrical resistivity and Seebeck coefficient were found to increase from 3.74⋅10− 4 to 8.77⋅10− 3 Ω.cm and 8.28⋅10− 6 to 2.52⋅10− 5 v/k (at 100 Co temperature difference), respectively; the carrier concentration and carrier mobility were also found to decrease from 3.24⋅1020 to 1.76⋅1020 cm− 3 and from 55.5 to 4.05 cm2/v.s, respectively. The Hall effect and thermoelectric studies revealed that the films exhibited an n-type conductivity.

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Nano-crystalline Ag–PbTe thermoelectric thin films by a multi-target PLD system

Cited by 23 publications

References 36 publications

Preliminary characterization of ST2G: Solar thermionic-thermoelectric generator for concentrating systems

Preliminary characterization of ST2G: Solar thermionic-thermoelectric generator for concentrating systems

Material optimization via combinatorial deposition and analysis for thermoelectric thin films

The effect of copper doping on the structural, optical, and electrical properties of cadmium oxide thin films using the spray pyrolysis technique

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