Fe-Ion-Catalyzed Synthesis of CdSe/Cu Core/Shell Nanowires
Chen, Mao1,2; Xu, Lekai3; Wang, Jiao1,2; Liu, Baokun1,2; Wang, Kun1,2; Qi, Qi1,2; Zhu, Yaqiong1,2; Yang, Xin1,2; Chai, Wencui4; Yang, Peixu1,2; Zhang, Weidong1,2; Liu, Jinhui1,2; Jia, Guanwei5; Zhang, Shaojun1,2; Du, Jiang1,2
AbstractCdSe/Cu core/shell nanowires (NWs) are successfully synthesized by a wet chemical method for the first time. By utilizing the solution-liquid-solid (SLS) mechanism, CdSe NWs are fabricated by Bi seeds, which act as catalysts. In the subsequent radial overcoating of the Cu shell on the CdSe NWs, Fe ions have been proven to be an indispensable and efficient catalyzer. The thickness of the Cu shell could be well controlled in the range of 3 to 6 nm by varying the growth temperature (from 300 to 360 degrees C). Our synthetic strategy pioneers a new possibility for the controlled synthesis of semiconductor-metal heterostructure NWs (especially for II-VI semiconductors), such as CdS/Cu, ZnS/Au, and ZnO/Ag, which had broad application prospects in photoconductors, thin-film transistors, and light-emitting diodes. Theoretically, electrons flow from a higher Fermi-level material to the bottom Fermi-level at the metal-semiconductor heterojunction interface, which aligns the Fermi level and establishes the Schottky barrier. It leads to excess negative charges in metals and excess positive charges in semiconductors. Therefore, those effective electron traps reduce the probability of photogenerated electron-hole pair recombination efficiently, which has been widely applied in solar cells, sensors, photocatalysis, and energy storage. The breakthrough and innovation of this synthesis method have opened up a new synthetic route with a mild reaction environment, low energy consumption, and convenience.
Funding ProjectEducation Department of Henan Province[20A430024] ; National Key Research and Development Program of China[2016YFB0301001]
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
Funding OrganizationEducation Department of Henan Province ; National Key Research and Development Program of China
WOS IDWOS:000620345400052
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Document Type期刊论文
Corresponding AuthorDu, Jiang
Affiliation1.Zhengzhou Univ, Henan Prov Ind Technol Res Inst Resources & Mat, Zhengzhou 450001, Peoples R China
2.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100109, Peoples R China
4.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Peoples R China
5.Henan Univ, Sch Phys & Elect, Kaifeng 475004, Peoples R China
Recommended Citation
GB/T 7714
Chen, Mao,Xu, Lekai,Wang, Jiao,et al. Fe-Ion-Catalyzed Synthesis of CdSe/Cu Core/Shell Nanowires[J]. INORGANIC CHEMISTRY,2021,60(4):2614-2622.
APA Chen, Mao.,Xu, Lekai.,Wang, Jiao.,Liu, Baokun.,Wang, Kun.,...&Du, Jiang.(2021).Fe-Ion-Catalyzed Synthesis of CdSe/Cu Core/Shell Nanowires.INORGANIC CHEMISTRY,60(4),2614-2622.
MLA Chen, Mao,et al."Fe-Ion-Catalyzed Synthesis of CdSe/Cu Core/Shell Nanowires".INORGANIC CHEMISTRY 60.4(2021):2614-2622.
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