SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Yao Mingguang) ;pers:(Fan Xianhong)"

Sökning: WFRF:(Yao Mingguang) > Fan Xianhong

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Yao, Mingguang, et al. (författare)
  • Synthesis of differently shaped C(70) nano/microcrystals by using various aromatic solvents and their crystallinity-dependent photoluminescence
  • 2012
  • Ingår i: Carbon. - : Elsevier BV. - 0008-6223 .- 1873-3891. ; 50:1, s. 209-215
  • Tidskriftsartikel (refereegranskat)abstract
    • We report a simple synthesis of Cm microcrystals by a fast solvent-assisted evaporation method by selectively using aromatic solvents with halogen radicals as a controller. In a detailed analysis we show that depending on solvent, C(70) concentration in the solution, and synthesis temperature both C(70) microrods and microcubes can be produced. The samples were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy. From meta-type solvents microrods or microcrystal cubes grow with a single orthorhombic or a monoclinic structure or a mixture of both. These crystals show traces of solvents in the structure. From para-type solvents cubic (or rectangular) crystals grow with a hexagonal structure and with no trace of solvents. Room temperature photoluminescence (PL) of the C(70) crystal samples reveals that the PL efficiency of the crystals increases with crystalline order and that the best crystalline Cm cube crystals show 10 times higher PL efficiency than that of pristine C(70) polycrystalline samples. (C) 2011 Elsevier Ltd. All rights reserved.
  •  
2.
  • Yao, Mingguang, et al. (författare)
  • Uniaxial-stress-driven transformation in cold compressed glassy carbon
  • 2017
  • Ingår i: Applied Physics Letters. - Melville : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 111:10
  • Tidskriftsartikel (refereegranskat)abstract
    • We show that transformation of glassy carbon (GC) into a translucent superhard carbon phase by cold-compression is obtained in the presence of a uniaxial stress field. This transition accompanies with sp(2) to sp(3) bonding change in GC, and it is found that the uniaxial stress strongly favors this bonding transition. The transformation of GC causes photoluminescence and significantly increases light transmissivity. Upon decompression, the high pressure phase can be maintained under large uniaxial stress at a chamber pressure even down to similar to 10GPa. We discuss possible mechanisms of these transitions by a distinct bonding process that occurs in noncrystalline carbon.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Liu, Bingbing (2)
Yao, Mingguang (2)
Fan, Xianhong (2)Ta bort avgränsningen
Wågberg, Thomas (1)
Sundqvist, Bertil (1)
Zhang, Weiwei (1)
visa fler...
Liu, Ran (1)
Liu, Dedi (1)
Bao, Yongjun (1)
visa färre...
Lärosäte
Umeå universitet (2)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)

År

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