Formation mechanisms of Cu(In0.7Ga0.3)Se2 nanocrystallites synthesized using hot-injection and heating-up processes

Wei Hsiang Hsu; Hsing I. Hsiang; Yu Lun Chang; Dah Tong Ray; Fu Su Yen

doi:10.1111/j.1551-2916.2011.04488.x

Formation mechanisms of Cu(In_0.7Ga_0.3)Se₂ nanocrystallites synthesized using hot-injection and heating-up processes

Wei Hsiang Hsu, Hsing I. Hsiang, Yu Lun Chang, Dah Tong Ray, Fu Su Yen

Department of Resources Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Nearly monodispersed CuIn_0.7Ga_0.3Se₂ (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium-oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe₂→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In-OLA and Ga-OLA complexes.

Original language	English
Pages (from-to)	3030-3034
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	94
Issue number	9
DOIs	https://doi.org/10.1111/j.1551-2916.2011.04488.x
Publication status	Published - 2011 Sept

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1551-2916.2011.04488.x

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title = "Formation mechanisms of Cu(In0.7Ga0.3)Se2 nanocrystallites synthesized using hot-injection and heating-up processes",

abstract = "Nearly monodispersed CuIn0.7Ga0.3Se2 (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium-oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe2→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In-OLA and Ga-OLA complexes.",

author = "Hsu, {Wei Hsiang} and Hsiang, {Hsing I.} and Chang, {Yu Lun} and Ray, {Dah Tong} and Yen, {Fu Su}",

year = "2011",

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AU - Hsu, Wei Hsiang

AU - Hsiang, Hsing I.

AU - Chang, Yu Lun

AU - Ray, Dah Tong

AU - Yen, Fu Su

PY - 2011/9

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N2 - Nearly monodispersed CuIn0.7Ga0.3Se2 (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium-oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe2→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In-OLA and Ga-OLA complexes.

AB - Nearly monodispersed CuIn0.7Ga0.3Se2 (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium-oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe2→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In-OLA and Ga-OLA complexes.

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Formation mechanisms of Cu(In_0.7Ga_0.3)Se₂ nanocrystallites synthesized using hot-injection and heating-up processes

Abstract

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