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Comparison of the thermal decomposition processes of several aminoalcohol-based ZnO inks with one containing ethanolamine

Four inks for the production of ZnO semiconducting films have been prepared with zinc acetate dihydrate as precursor salt and one among the following aminoalcohols: aminopropanol (APr), aminomethyl butanol (AMB), aminophenol (APh) and aminobenzyl alcohol (AB) as stabilizing agent. Their thermal decomposition process has been analyzed in situ by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and evolved gas analysis (EGA), whereas the solid product has been analysed ex-situ by X-ray diffraction (XRD) and infrared spectroscopy (IR). Although, except for the APh ink, crystalline ZnO is already obtained at 300 ºC, the films contain an organic residue that evolves at higher temperature in the form of a large variety of nitrogen-containing cyclic compounds. The results indicate that APr can be a better stabilizing agent than ethanolamine (EA). It gives larger ZnO crystal sizes with similar carbon content. However, a common drawback of all the amino stabilizers (EA included) is that nitrogen atoms have not been completely removed from the ZnO film at the highest temperature of our experiments (600 ºC)

This work was partially funded by the Spanish Programa Nacional de Materiales through project MAT2014-51778-C2-2-R

© Applied Surface Science, 2016, vol. 381, p. 48-53

Elsevier

Manager: Ministerio de Economía y Competitividad (Espanya)
Author: Gómez Núñez, Alberto
Roura Grabulosa, Pere
López, Concepción
Vilà, Anna
Date: 2016 September 15
Abstract: Four inks for the production of ZnO semiconducting films have been prepared with zinc acetate dihydrate as precursor salt and one among the following aminoalcohols: aminopropanol (APr), aminomethyl butanol (AMB), aminophenol (APh) and aminobenzyl alcohol (AB) as stabilizing agent. Their thermal decomposition process has been analyzed in situ by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and evolved gas analysis (EGA), whereas the solid product has been analysed ex-situ by X-ray diffraction (XRD) and infrared spectroscopy (IR). Although, except for the APh ink, crystalline ZnO is already obtained at 300 ºC, the films contain an organic residue that evolves at higher temperature in the form of a large variety of nitrogen-containing cyclic compounds. The results indicate that APr can be a better stabilizing agent than ethanolamine (EA). It gives larger ZnO crystal sizes with similar carbon content. However, a common drawback of all the amino stabilizers (EA included) is that nitrogen atoms have not been completely removed from the ZnO film at the highest temperature of our experiments (600 ºC)
This work was partially funded by the Spanish Programa Nacional de Materiales through project MAT2014-51778-C2-2-R
Format: application/pdf
Citation: 025308
ISSN: 0169-4332
Document access: http://hdl.handle.net/10256/12560
Language: eng
Publisher: Elsevier
Collection: MINECO/PE 2015-2017/MAT2014-51778-C2-2-R
Versió preprint del document publicat a: http://dx.doi.org/10.1016/j.apsusc.2016.03.138
Articles publicats (D-F)
Is part of: © Applied Surface Science, 2016, vol. 381, p. 48-53
Rights: Tots els drets reservats
Subject: Anàlisi tèrmica
Espectroscòpia infraroja
Thermal analysis
Infrared spectroscopy
Raigs X -- Difracció
X-rays -- Diffraction
Title: Comparison of the thermal decomposition processes of several aminoalcohol-based ZnO inks with one containing ethanolamine
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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