Your browser doesn't support javascript.
loading
Synergistic Effect of Halogen Ions and Shelling Temperature on Anion Exchange Induced Interfacial Restructuring for Highly Efficient Blue Emissive InP/ZnS Quantum Dots.
Cui, Zhongjie; Mei, Shiliang; Wen, Zhuoqi; Yang, Dan; Qin, Shuaitao; Xiong, Zhiyong; Yang, Bobo; He, Haiyang; Bao, Rui; Qiu, Yi; Chen, Yuanyuan; Zhang, Wanlu; Xie, Fengxian; Xing, Guichuan; Guo, Ruiqian.
Afiliación
  • Cui Z; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Mei S; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Wen Z; Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China.
  • Yang D; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Qin S; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Xiong Z; Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China.
  • Yang B; School of Science, Shanghai Institute of Technology, Shanghai, 201418, China.
  • He H; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Bao R; Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China.
  • Qiu Y; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Chen Y; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Zhang W; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Xie F; Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China.
  • Xing G; Zhongshan-Fudan Joint Innovation Center, Zhongshan, 528437, China.
  • Guo R; Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, 999078, China.
Small ; 18(15): e2108120, 2022 04.
Article en En | MEDLINE | ID: mdl-35253372
InP quantum dots (QDs) have attracted much attention owing to their nontoxic properties and shown great potential in optoelectronic applications. Due to the surface defects and lattice mismatch, the interfacial structure of InP/ZnS QDs plays a significant role in their performance. Herein, the formation of In-S and Sx -In-P1-x interlayers through anion exchange at the shell-growth stage is revealed. More importantly, it is proposed that the composition of interface is dependent on the synergistic effect of halogen ions and shelling temperature. High shelling temperature contributes to the optical performance improvement resulting from the formation of interlayers, besides the thicker ZnS shell. Moreover, the effect relates to the halogen ions where I- presents more obvious enhancement than Br- and Cl- , owing to their different ability to coordinate with In dangling bonds, which are inclined to form In-S and Sx -In-P1-x bonds. Further, the anion exchange under I- -rich environment causes a blue-shift of emission wavelength with shelling temperature increasing, unobserved in a Cl- - or Br- -rich environment. It contributes to the preparation of highly efficient blue emissive InP/ZnS QDs with emission wavelength of 473 nm, photoluminescence quantum yield of ≈50% and full width at half maximum of 47 nm.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Puntos Cuánticos Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Puntos Cuánticos Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania