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Polymer functionalized antimony sulfide quantum dots for broadband optical limiting.
Li, Guangwei; Chen, Qian; Dong, Ningning; He, Haidong; Wang, Jun; Chen, Yu.
Afiliación
  • Li G; Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China. 3148704620@qq.com.
  • Chen Q; Minhang Hospital, Fudan University, 170 Xinsong Road, Shanghai 201199, China. chinahhd@sina.com.
  • Dong N; Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China. 3148704620@qq.com.
  • He H; Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. jwang@siom.ac.cn.
  • Wang J; Center of Materials Science and Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Chen Y; Minhang Hospital, Fudan University, 170 Xinsong Road, Shanghai 201199, China. chinahhd@sina.com.
Nanoscale ; 2024 Sep 11.
Article en En | MEDLINE | ID: mdl-39258524
ABSTRACT
The rapid development of zero-dimensional quantum dots-based nanotechnology has motivated the design and synthesis of novel nano-functional materials for optoelectronic and photonic devices in recent years. Antimony sulfide (Sb2S3) quantum dots (SQDs), with an average diameter of 3.22 nm, were prepared via a top-down liquid ultrasonication exfoliation technique. Highly soluble poly(N-vinylcarbazole)-covalently functionalized SQDs (SQDs-PVK) were synthesized in situ by reversible addition fragmentation chain transfer polymerization, and embedded into a non-optically active poly(methylmethacrylate) (PMMA) matrix giving the SQDs-PVK/PMMA film. The annealed SQDs-PVK/PMMA film showed exceptional nonlinear optical performance, with large nonlinear absorption coefficients of 713.71 cm GW-1 at 532 nm and 913.60 cm GW-1 at 1064 nm, and small limiting thresholds of 1.44 J cm-2 at 532 nm and 1.08 J cm-2 at 1064 nm. These advantages make SQDs-PVK one of the promising candidates for a broadband optical limiter in both the near-infrared and visible ranges.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido