journal article·2023-04-19Open access

ZnSe Nanoparticles for Thermoelectrics: Impact of Cu-Doping

Valeria Demontis, Muhammad Isram, Najaf Abbas Khan, Nasir Amin, Khalid Mahmood, Francesco Rossella

Crystals· Volume 13· Issue 4

Abstract

The present study investigates the impact of copper doping on the thermoelectric properties of zinc selenide (ZnSe) nanoparticles synthesized by the hydrothermal method. Nanoparticle samples with varying copper concentrations were prepared and their thermoelectric performances were evaluated by measuring the electrical transport properties, the Seebeck coefficient, and extracting the power factor. The results demonstrate that the thermoelectric properties of Cu-doped ZnSe nanoparticles are significantly enhanced by doping, mainly as an effect of an improved electrical conductivity, providing a promising avenue for energy applications of these nanomaterials. To gain further insights into the fundamental mechanisms underlying the observed improvements in thermoelectric performance of the samples, the morphological, structural, and vibrational properties were characterized using a combination of scanning electron microscopy, X-ray diffraction, and Raman spectroscopy.
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Research context

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Scuola Normale Superiore, NEST Laboratory, Piazza San Silvestro 12, 56127 Pisa, Italy

Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, via Campi 213/a, 41125 Modena, Italy

Department of Physics, Government College University Faisalabad, Faisalabad 38000, Pakistan

Funding

the Italian Ministry of Research and Education, PRIN2017 “PELM” · “Physics and nano sciences” · “Nanotecnologie per la termoelettricità e l’energy harvesting” · the National Recovery and Resilience Plan (NRRP), Mission 04, Component 2 Investment 1.5—NextGenerationEU

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