Results 131 to 140 of about 15,302 (285)

RKKY interaction between quantum dot spins tuned by the quantum dot level

open access: yes, 2006
We have investigated the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two quantum dot (QD) spins mediated by a two-dimensional electron gas in the simplest case.
Li, SS, CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China. E-mail: sslee@red.semi.ac.cn   +2 more
core  

Light–Moisture Coupling for Enhanced Energy Harvesting

open access: yesEcoEnergy, EarlyView.
Light–moisture coupling energy‐harvesting devices exhibit improved power output and long‐term stability by continuously consuming accumulated protons via photogenerated carriers, thereby dynamically reconstructing ion concentration gradients during operation.
Guangtao Zan, Shengyou Li, Kaiying Zhao
wiley   +1 more source

Stabilization Strategies for Carbon Based Perovskite Solar Cells Under Light, Heat, and Humidity

open access: yesEcoEnergy, EarlyView.
Carbon‐based MA1−x(AVA)xPbI3/CsPbBr3 QD heterostructures fabricated under ambient conditions exhibit < 5% loss under ISOS‐D‐3 and reversible photo‐induced degradation, revealing the dual role of QDs in defect passivation and dynamic interfacial stabilization.
Emilie Planes   +4 more
wiley   +1 more source

Synergistic Optical Strategies for Enhanced Perovskite Photocatalytic Activity

open access: yesEcoEnergy, EarlyView.
This review addresses bottlenecks of halide perovskites' photoactive components from an optics‐driven perspective and organizes recent advances into four interconnected design principles. This review provides practical design principles and outlines key directions toward efficient, selective, and stable perovskite photocatalysis for CO2 reduction ...
Jaemin Jeong   +3 more
wiley   +1 more source

Electronic structures of N quantum dot molecule

open access: yes, 2007
The electronic structures of N quantum dot molecules (QDMs) are investigated theoretically in the framework of effective-mass envelope function theory. The electron and hole energy levels are calculated.
Xi, JB (Xi, Jian-Bai)   +2 more
core  

A Boric Acid‐SnO2 Composite for Interfacial Stabilization of Highly Efficient Perovskite Solar Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The interaction between BA and FAI can inhibit the oxidation of iodide ions to elemental iodine (I2) in perovskite films, significantly improving the films' UV stability, and the power conversion efficiency (PCE) of the device containing BA reaches 25.7%.
Kun Gao   +12 more
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng   +8 more
wiley   +1 more source

High-Performance Dual-Wavelength All-Optical Reflective Semiconductor Optical Amplifier Utilizing Solution-Processed Quantum Dots

open access: yesJournal of Optoelectronical Nanostructures
This study introduces a dual-wavelength all-optical quantum dot reflective semiconductor optical amplifier (QD-RSOA), emphasizing its advanced performance and versatility in modern optical communication systems.
Hamed Ghatei Khiabani Azar   +2 more
doaj  

Growth, spectroscopy and utilisation of novel low dimensional nanostructures: carbon nanotubes and quantum dots

open access: yes, 2008
The work presented in this thesis deals with two important low dimensional nanostructures: carbon nanotubes (CNTs) and quantum dots (QDs). In the part of the work related to CNTs a novel method for growing CNTs without the need of metal catalyst is ...
Bourdakos, Konstantinos Nikolaos
core  

Dual Operating Mode Imaging Photodetector Based on Electrical Modulation of p‐Si/MgO/ZnO

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This research innovatively introduces the MgO barrier layer and utilizes the device structure advantages of MSM to achieve breakthrough dual‐band response output of p‐Si/MgO/ZnO photodetectors under bias modulation. It has been successfully applied in dual‐mode imaging, laying the foundation for the development of third‐generation imaging technology ...
Hepeng Zhao   +4 more
wiley   +1 more source

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