Enhanced Electrical Properties of Alkali-Doped ZnO Thin Films with Chemical Process
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Other documents of the author: González Cuadra, Jaime; Porcar García, Samuel; Fraga Chiva, Diego; Lyubenova, Teodora; Carda Castelló, Juan Bautista
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comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
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Title
Enhanced Electrical Properties of Alkali-Doped ZnO Thin Films with Chemical ProcessAuthor (s)
Date
2021Publisher
MDPIISSN
2673-9941Bibliographic citation
CUADRA, Jaime G., et al. Enhanced electrical properties of alkali-doped ZnO thin films with chemical process. En Solar. MDPI, 2021. p. 30-40Type
info:eu-repo/semantics/articlePublisher version
https://www.mdpi.com/2673-9941/1/1/4Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
Doped ZnO are among the most attractive transparent conductive oxides for solar cells because they are relatively cheap, can be textured for light trapping, and readily produced for large-scale coatings. Here, we focus ... [+]
Doped ZnO are among the most attractive transparent conductive oxides for solar cells because they are relatively cheap, can be textured for light trapping, and readily produced for large-scale coatings. Here, we focus on the development of alternative Na and K-doped ZnO prepared by an easy low-cost spray pyrolysis method for conducting oxide application. To enhance the electrical properties of zinc oxide, alkali-doped Zn1−x MxO (x = 0.03) solid solutions were investigated. The resulting layers crystallize in a single hexagonal phase of wurtzite structure with preferred c-axis orientation along a (002) crystal plane. Dense, well attached to the substrate, homogeneous and highly transparent layers were obtained with great optical transmittance higher than 80%. The optical energy band gap of doped ZnO films increase from 3.27 to 3.29 eV by doping with Na and K, respectively. The electrical resistivity of the undoped ZnO could be decreased from 1.03 × 10−1 Ω.cm to 5.64 × 10−2 Ω.cm (K-doped) and 3.18 × 10−2 (Na-doped), respectively. Lastly, the carrier concentrations increased from 5.17 × 1017 (undoped ZnO) to 1 × 1018 (doped ZnO). [-]
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En Solar. MDPI, 2021. p. 30-40Funder Name
Ministerio de Economía y Competitividad de España
Project code
ENE2017-87671- C3-3-R | PID2020-116719RB-C43
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