Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor
Zinc selenide (ZnSe) nanocrystals were synthesized via a phosphine-free route using the highly reactive alkylamine-H2Se complex as selenium precursor and zinc precursors with different reactivity. The reactivity of zinc precursor was tuned by using three kinds of zinc carboxylates with different alk...
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Wiley
2013-01-01
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Series: | Journal of Chemistry |
Online Access: | http://dx.doi.org/10.1155/2013/791437 |
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author | Lai-Jun Zhang Fa-Yun Chen Ji-Zao Tong Guang-Da Chen Hai-Jin Huang Xing-Can Shen |
author_facet | Lai-Jun Zhang Fa-Yun Chen Ji-Zao Tong Guang-Da Chen Hai-Jin Huang Xing-Can Shen |
author_sort | Lai-Jun Zhang |
collection | DOAJ |
description | Zinc selenide (ZnSe) nanocrystals were synthesized via a phosphine-free route using the highly reactive alkylamine-H2Se complex as selenium precursor and zinc precursors with different reactivity. The reactivity of zinc precursor was tuned by using three kinds of zinc carboxylates with different alkyl chain lengths, including zinc acetate, zinc nonanoate, and zinc stearate. The effect of the reactivity and the amount of zinc precursor on nucleation and growth of ZnSe nanocrystals were investigated by ultraviolet-visible absorption and photoluminescence spectra. Result indicates that the growth and optical property of the resulting ZnSe nanocrystals are strongly dependent on the alkyl chain length and the amount of the zinc carboxylates and both shorter alkyl chain length, and more amount of zinc carboxylate will lead to faster growth of ZnSe nanocrystals. This allows that the controlled growth and excellent optical property of high-quality ZnSe nanocrystals can be achieved by combining the different reactivity and the used amount of zinc precursor, such as by using stoichiometric and reactive Zn precursor and Se precursor or by using larger amount of more unreactive Zn precursor relative to the highly reactive alkylamine-H2Se complex precursor. |
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id | doaj-art-902a1ec6c08541289798d9f9d856489f |
institution | Kabale University |
issn | 2090-9063 2090-9071 |
language | English |
publishDate | 2013-01-01 |
publisher | Wiley |
record_format | Article |
series | Journal of Chemistry |
spelling | doaj-art-902a1ec6c08541289798d9f9d856489f2025-02-03T07:25:10ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/791437791437Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc PrecursorLai-Jun Zhang0Fa-Yun Chen1Ji-Zao Tong2Guang-Da Chen3Hai-Jin Huang4Xing-Can Shen5School of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, ChinaSchool of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, ChinaSchool of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, ChinaSchool of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, ChinaSchool of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao 334001, ChinaKey Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education), School of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, ChinaZinc selenide (ZnSe) nanocrystals were synthesized via a phosphine-free route using the highly reactive alkylamine-H2Se complex as selenium precursor and zinc precursors with different reactivity. The reactivity of zinc precursor was tuned by using three kinds of zinc carboxylates with different alkyl chain lengths, including zinc acetate, zinc nonanoate, and zinc stearate. The effect of the reactivity and the amount of zinc precursor on nucleation and growth of ZnSe nanocrystals were investigated by ultraviolet-visible absorption and photoluminescence spectra. Result indicates that the growth and optical property of the resulting ZnSe nanocrystals are strongly dependent on the alkyl chain length and the amount of the zinc carboxylates and both shorter alkyl chain length, and more amount of zinc carboxylate will lead to faster growth of ZnSe nanocrystals. This allows that the controlled growth and excellent optical property of high-quality ZnSe nanocrystals can be achieved by combining the different reactivity and the used amount of zinc precursor, such as by using stoichiometric and reactive Zn precursor and Se precursor or by using larger amount of more unreactive Zn precursor relative to the highly reactive alkylamine-H2Se complex precursor.http://dx.doi.org/10.1155/2013/791437 |
spellingShingle | Lai-Jun Zhang Fa-Yun Chen Ji-Zao Tong Guang-Da Chen Hai-Jin Huang Xing-Can Shen Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor Journal of Chemistry |
title | Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor |
title_full | Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor |
title_fullStr | Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor |
title_full_unstemmed | Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor |
title_short | Controlled Growth of ZnSe Nanocrystals by Tuning Reactivity and Amount of Zinc Precursor |
title_sort | controlled growth of znse nanocrystals by tuning reactivity and amount of zinc precursor |
url | http://dx.doi.org/10.1155/2013/791437 |
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