size effecttitanium compounds/ TiO 2 nanoparticlesquantum size effectWe have examined the quantum size effect in anatase T iO 2 nanoparticles. No shift of the band gap energy has been observed for sizes 2 R≥1.5 nm. On the other hand, we have found unusual variation of the oscillator ...
experiments on size-selected small silver nanoparticles embedded in silica can yield inconsistent results on the same system: whereas optical absorption shows no size effect in the range between only a few atoms and ~10 nm, a clear spectral shift is observed in single-particle electron ...
The Bi nanoparticles were prepared by reducing Bi3+ with sodium borohydride in the presence of poly(vinylpyrroldone). The volume plasmon energy and its peak width increase with decreasing nanoparticle diameter, due to the quantum size effect. For the particles with diameter less than 40 nm, the...
Spherical Si and Sn O x nanoparticles in the size range between 3 and 30 nm have been synthesized by microwave induced decomposition of silane and gas phase condensation, respectively. They are deposited on thin metal films and investigated by electron microscopy, Auger electron, and electron energ...
Heterostructure quantum dots involving Ag 2O nanoparticles with a thin shell of metallic silver show unusual optical absorption spectra again arising due to a confinement effect. Composites consisting of the ferroelectric phase BaTiO 3 and nanosized nickel or silver, in a gel medium show a large ...
data were combined and simultaneously analysed using the effective mean free path theory of size effect in thin films developed by Tellier and Pichard et ... VD Das,N Soundararajan - 《Journal of Materials Science》 被引量: 24发表: 1989年 Singular Diffusion as a Function of Nanoparticles Siz...
2. 量子尺度效应 2.2量子尺度效应(Quantum Size Effect)……….16 2.3 磁滞曲线 (Magnetic Hysteresis Loop)………17 2.4 居礼温 … www.alllw.com|基于4个网页 3. 量子区域效应 ...观察,若是进一步地限制这些表面电子的行为,就会发生量子区域效应(quantum size effect),利用低温STM,将此效应展现 … ssttpro...
M. Size dependent χ(3) for conduction electrons in Ag nanoparticles. Nano. Lett. 4, 1535–1539 (2004). Article ADS CAS Google Scholar Hache, F., Ricard, D. & Flytzanis, C. Optical nonlinearities of small metal particles: surface-mediated resonance and quantum size effects. J. Opt. ...
Two-photon excited luminescence from metal nanoparticles: Discrete spectrum and quantum-size effect A continuous conduction band of bulk metal breaks into discrete quantum states for a nanometer-size metal particle. We show that the discrete spectrum of a... E Khaliullin,V Drachev,S Rautian,.....
Light patterning semiconductor nanoparticles by modulating surface charges Xiaoli He Hongri Gu Chengzhi Hu Nature Communications (2024) Highly efficient printed quantum dot light-emitting diodes through ultrahigh-definition double-layer transfer printing Jisu Yoo Kyunghoon Lee Moon Kee Choi Nature Phot...