Zobrazeno 1 - 10
of 218
pro vyhledávání: '"William E. Buhro"'
Publikováno v:
Inorganic Chemistry. 61:5861-5868
Wurtzite CdSe quantum belts with L-type
Autor:
William E. Buhro, Haochen Sun
Publikováno v:
Chemistry of Materials. 33:1683-1697
The ligand-exchange chemistries of wurtzite (WZ) and zinc-blende (ZB) CdTe nanoplatelets are compared and contrasted. WZ CdTe nanoplatelets of composition (CdTe)[(n-octylamine)0.15(oleylamine)0.27]...
Publikováno v:
Chemistry of Materials. 32:8350-8360
The amine-ligated magic-size nanoclusters [(II-VI)13(n-octylamine)13] (II–VI = CdSe and CdTe) and acids HX (X = OBz, OAc, NO3, Br, and Cl where OBz = benzoate and OAc = acetate) react to afford cry...
Autor:
Haochen Sun, William E. Buhro
Publikováno v:
Chemistry of Materials. 32:5814-5826
Three-monolayer CdSe nanoplatelets having the composition (CdSe)3[Cd(OAc)0.77(oleate)1.23]0.78, large lateral dimensions, minimal strain distortions, and the zinc-blende crystal structure undergo Z...
Publikováno v:
The Journal of Physical Chemistry Letters. 11:4901-4910
The state-to-state intraband relaxation dynamics of charge carriers photogenerated within CdTe quantum wires (QWs) are characterized via transient absorption spectroscopy. Overlapping signals from the energetic-shifting of the quantum-confinement fea
Autor:
Chenguang Ji, William E. Buhro
Publikováno v:
Chemistry of Materials. 32:5290-5300
Ligand exchanges of L-type amine-ligated wurtzite CdSe nanoplatelets (NPLs) are investigated under two-phase conditions employing hexane as the nonpolar phase and DMF as the polar phase. Exchange w...
Autor:
Fudong Wang, Calynn Morrison, Yuanyuan Wang, Richard A. Loomis, Paul J. Morrison, William M. Sanderson, William E. Buhro, Jessica Hoy
Publikováno v:
The Journal of Physical Chemistry Letters. 11:3249-3256
The excitation energy dependence (EED) of the photoluminescence quantum yield (ΦPL) of semiconductor nanoparticles with varying dimensionalities is reported. Specifically, the EEDs of CdSe quantum dots, CdSe quantum platelets, CdSe quantum belts, an
Publikováno v:
Chemistry of Materials. 32:1760-1768
The techniques employed in the compositional analysis of semiconductor materials by inductively coupled plasma optical emission spectroscopy (ICP-OES) dramatically influence the accuracy and reprod...
Autor:
William E. Buhro, Yuewei Yao
Publikováno v:
Chemistry of Materials. 32:205-214
Addition of thiols to semiconductor nanocrystals influences their photoluminescence efficiencies; however, the mode of ligation—as neutral thiol ligands or as anionic thiolate ligands—is rarely clearly established. We now differentiate these liga
Autor:
Haochen Sun, William E. Buhro
Publikováno v:
ACS Nano. 13:6982-6991
CdS and CdSe shells are deposited on wurtzite CdTe quantum platelets (nanoplatelets) by exchanging the initial primary-amine ligation to Cd(OAc)2 ligation, with subsequent reaction of the Cd(OAc)2 ligand shell and thiourea or selenourea, respectively