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Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning
นักวิจัย : Teng, Xue , Zhu, Yihan , Wei, Wei , Wang, Shuchao , Huang, Jingfeng , Naccache, Rafik , Hu, Wenbo , Tok, Alfred Iing Yoong , Han, Yu , Zhang, Qichun , Fan, Qu-Li , Huang, Wei , Capobianco, John A , Huang, Ling
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Teng, X., Zhu, Y., Wei, W., Wang, S., Huang, J., Naccache, R., et al. (2012). Lanthanide-Doped NaxScF3+x Nanocrystals: Crystal Structure Evolution and Multicolor Tuning . Journal of the American Chemical Society, 134(20), 8340-8343. , http://hdl.handle.net/10220/11266 , http://dx.doi.org/10.1021/ja3016236
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of the American chemical society
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Rare-earth-based nanomaterials have recently drawn considerable attention because of their unique energy upconversion (UC) capabilities. However, studies of Sc3+-based nanomaterials are still absent. Herein we report the synthesis and fine control of NaxScF3+x nanocrystals by tuning of the ratio of oleic acid (OA, polar surfactant) to 1-octadecene (OD, nonpolar solvent). When the OA:OD ratio was increased from low (3:17) to high (3:7), the nanocrystals changed from pure monoclinic phase (Na3ScF6) to pure hexagonal phase (NaScF4) via a transition stage at an intermediate OA:OD ratio (3:9) where a mixture of nanocrystals in monoclinic and hexagonal phases was obtained and the coexistence of the two phases inside individual nanocrystals was also observed. More significantly, because of the small radius of Sc3+, NaxScF3+x:Yb/Er nanocrystals show different UC emission from that of NaYF4:Yb/Er nanocrystals, which broadens the applications of rare-earth-based nanomaterials ranging from optical communications to disease diagnosis.

บรรณานุกรม :
Teng, Xue , Zhu, Yihan , Wei, Wei , Wang, Shuchao , Huang, Jingfeng , Naccache, Rafik , Hu, Wenbo , Tok, Alfred Iing Yoong , Han, Yu , Zhang, Qichun , Fan, Qu-Li , Huang, Wei , Capobianco, John A , Huang, Ling . (2555). Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Teng, Xue , Zhu, Yihan , Wei, Wei , Wang, Shuchao , Huang, Jingfeng , Naccache, Rafik , Hu, Wenbo , Tok, Alfred Iing Yoong , Han, Yu , Zhang, Qichun , Fan, Qu-Li , Huang, Wei , Capobianco, John A , Huang, Ling . 2555. "Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Teng, Xue , Zhu, Yihan , Wei, Wei , Wang, Shuchao , Huang, Jingfeng , Naccache, Rafik , Hu, Wenbo , Tok, Alfred Iing Yoong , Han, Yu , Zhang, Qichun , Fan, Qu-Li , Huang, Wei , Capobianco, John A , Huang, Ling . "Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Teng, Xue , Zhu, Yihan , Wei, Wei , Wang, Shuchao , Huang, Jingfeng , Naccache, Rafik , Hu, Wenbo , Tok, Alfred Iing Yoong , Han, Yu , Zhang, Qichun , Fan, Qu-Li , Huang, Wei , Capobianco, John A , Huang, Ling . Lanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuning. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.