Results 161 to 170 of about 1,223,675 (304)

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

open access: yesAdvanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian   +8 more
wiley   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

open access: yesAdvanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra   +17 more
wiley   +1 more source

Universal Computational Super-Resolution Framework for Imaging of Quantum Dots. [PDF]

open access: yesACS Nanosci Au
Vašinka D   +11 more
europepmc   +1 more source

Differential Sedimentation and Cryo‐TEM Mapping Resolve Structural Heterogeneity in Conjugated Polymer Nanowires for Programmable Stretchable Electronics

open access: yesAdvanced Materials, EarlyView.
Density‐driven differential sedimentation fractionates solution‐assembled P3HT nanowires into crystalline and disordered constituents. High‐resolution cryo‐TEM directly visualizes the molecular chain packing within individual nanowires in real space, and recombining the fractions programs the mobility–stretchability trade‐off without chemical ...
Junyeon Yoon, Jun Ho Hwang, Eunji Lee
wiley   +1 more source

Hydrogenic impurity in double quantum dots

open access: yes, 2007
The ground state binding energy and the average interparticle distances for a hydrogenic impurity in double quantum dots with Gaussian confinement potential are studied by the variational method. The probability density of the electron is calculated, too.
Wang, XF, Chinese Acad Sci, Inst Semicond, State Key Lab Superlatt & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: wangxf@red.semi.ac.cn   +1 more
core  

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

open access: yesAdvanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare   +9 more
wiley   +1 more source

Optical properties of copper- and indium-based Quantum Dots

open access: yes
openIn questo elaborato verra trattato come abbiamo sintetizzato i quantum dots di CuInS2 e sfruttando le loro dimensioni nanometriche abbiamo fatto varie analisi spettroscopiche sulle loro proprieta ...
FILIPPINI CELAJ, ARTA
core  

Quantum Dots in Ocular Surface: A Systematic Review. [PDF]

open access: yesWiley Interdiscip Rev Nanomed Nanobiotechnol
Sarwat S, Willcox M, Stapleton F, Roy M.
europepmc   +1 more source

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