SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Zhou Sicheng) "

Sökning: WFRF:(Zhou Sicheng)

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Dong, Lin, et al. (författare)
  • Photoluminescence from quasi-type-II spherical CdSe-CdS core-shell quantum dots
  • 2013
  • Ingår i: Applied Optics. - 1559-128X .- 2155-3165. ; 52:1, s. 105-109
  • Tidskriftsartikel (refereegranskat)abstract
    • Spherical CdSe-CdS core-shell quantum dots (QDs) are found to be flexible in the transition between the type-I regime and the type-II regime with different core/shell dimensions. The quasi-type-II feature of the colloidal dots is confirmed with time-resolved photoluminescence (PL) measurements. Two recombination paths of the excitons with significantly different decay rates are observed and analyzed. The spherical CdSe-CdS core-shell QDs are numerically simulated to investigate the carrier separation. A relatively long radiative lifetime and high degree of spatial carrier separation provide good potential to achieve lasing under continuous-wave excitation. Amplified spontaneous emission at room temperature is detected from the QDs embedded in the polymer matrix. It is shown that a larger shell thickness results in a lower pumping threshold, while a smaller shell thickness leads to higher PL efficiency.
  •  
2.
  • Zhou, Sicheng, et al. (författare)
  • Radiative properties of carriers in CdSe-CdS core-shell heterostructured nanocrystals of various geometries
  • 2013
  • Ingår i: Journal of the European Optical Society-Rapid Publications. - : European Optical Society. - 1990-2573. ; 8, s. 13042-
  • Tidskriftsartikel (refereegranskat)abstract
    • We report a model on core-shell heterostructured nanocrystals with CdSe as the core and CdS as the shell. The model is based on one-band Schrodinger equation. Three different geometries, nanodot, nanorod, and nanobone, are implemented. The carrier localization regimes with these structures are simulated, compared, and analyzed. Based on the electron and hole wave functions, the carrier overlap integral that has a great impact on stimulated emission is further investigated numerically by a novel approach. Furthermore, the relation between the nanocrystal size and electron-hole recombination energy is also examined.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Friberg, Ari T. (2)
Popov, Sergei (2)
Dong, Lin (2)
Zhou, Sicheng (2)
Muhammed, Mamoun (1)
Toprak, Muhammet S. (1)
visa fler...
Hu, Jun (1)
Sugunan, Abhilash (1)
Li, Shanghua (1)
visa färre...
Lärosäte
Kungliga Tekniska Högskolan (2)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (1)
År
2013 (2)

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy