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Annealing effect on thermoelectric characteristics of Spin-coated Cu2Se nanoparticle thin films
- Authors
- Lee, Jaehwan; Cho, Kyoungah; Park, Taeho; Kim, Sangsig
- Issue Date
- Oct-2022
- Publisher
- ELSEVIER
- Keywords
- Thermoelectric; Copper selenide; Nanoparticles; Thin films; Thermal annealing
- Citation
- CHEMICAL PHYSICS LETTERS, v.804
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMICAL PHYSICS LETTERS
- Volume
- 804
- ISSN
- 0009-2614
- Abstract
- In this study, we fabricated a spin-coated Cu2Se nanoparticle (NP) thin film on a plastic substrate and investigated the effects of low-temperature annealing on its thermoelectric characteristics. After thermal annealing at 150 degrees C for 10 min in vacuum, the electrical conductivity of the Cu2Se NP thin film was dramatically enhanced from 1.05 x 10(2) to 2.09 x 10(4) S/m, whereas its thermal conductivity slightly increased from 0.11 to 0.50 W/m.K. The power factor and the figure of merit of the annealed Cu2Se NP thin films at room temperature in air was 25.6 mu W/m.K-2 and 1.54 x 10(-2), respectively.
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Related Researcher
- Kim, Sang sig
- College of Engineering (School of Electrical Engineering)