Journal ArticleDOI
Incomplete confinement of electrons and holes in microcrystals
Yosuke Kayanuma,Hiroshi Momiji +1 more
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Calcul variationnel simple de l'energie d'excitation des microc Cristaux de CdS dans un microcristal a barrieres de potentiel finies d'un systeme electron-trou dan un microCristal.Abstract:
Calcul variationnel simple de l'energie de l'etat fondamental d'un systeme electron-trou dans un microcristal a barrieres de potentiel finies. Effet important de la penetration de la fonction d'onde sur le domaine de confinement important, coherent avec le deplacement vers le bleu observe a propos de l'energie d'excitation des microcristaux de CdSread more
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Journal ArticleDOI
Low-dimensional systems: quantum size effects and electronic properties of semiconductor microcrystallites (zero-dimensional systems) and some quasi-two-dimensional systems
TL;DR: In this paper, a review is concerned with quantum confinement effects in low-dimensional semiconductor systems, focusing on the optical properties, including luminescence, of nanometre-sized microcrystals.
Journal ArticleDOI
Spectroscopy and hot electron relaxation dynamics in semiconductor quantum wells and quantum dots.
TL;DR: The effects of size quantization in semiconductor quantum wells (carrier confinement in one dimension and quantum dots) on the respective carrier relaxation processes are reviewed, with emphasis on electron cooling dynamics.
Journal ArticleDOI
Doping Lanthanide into Perovskite Nanocrystals: Highly Improved and Expanded Optical Properties
Gencai Pan,Xue Bai,Dongwen Yang,Xu Chen,Pengtao Jing,Songnan Qu,Lijun Zhang,Donglei Zhou,Jinyang Zhu,Wen Xu,Biao Dong,Hongwei Song +11 more
TL;DR: This work indicates that the doped perovskite NCs will inherit most of the unique optical properties of lanthanide ions and deliver them to the perovkite NC host, thus endowing the family of perovSKite materials with excellent optical, electric, or magnetic properties.
Journal ArticleDOI
Size-dependent band gap of colloidal quantum dots
TL;DR: In this paper, the size-dependent band gap of colloidal quantum dots is calculated using a recently developed method that predicts accurately the eigenstates and eigenenergies of nanostructures by utilizing the adiabatic theorem of quantum mechanics.
Journal ArticleDOI
Organic-Capped ZnO Nanocrystals: Synthesis and n-Type Character
TL;DR: The n-type ZnO nanocrystals exhibit a strong intraband infrared absorption, an extensive bleach of the interband band-edge absorption, and a complete quenching of the photoluminescence.