Results 121 to 130 of about 1,293,225 (284)

Heavy‐Metal‐Free Colloidal Quantum Dots for Photocatalysis

Small, EarlyView.
Heavy‐metal‐free colloidal quantum dots provide sustainable photocatalytic platforms by combining tunable band structures, strong light absorption, and programmable surfaces/interfaces. This Review highlights how core/shell engineering, alloying, defect regulation, ligand design, and hybrid‐interface construction direct charge separation and ...
Xintong Xu, Ge Yang, Qin Li, Dechao Chen
wiley   +1 more source

Quantum dots coordinated with conjugated organic ligands: new nanomaterials with novel photophysics

Nanoscale Research Letters, 2007
CdSe quantum dots functionalized with oligo-(phenylene vinylene) (OPV) ligands (CdSe-OPV nanostructures) represent a new class of composite nanomaterials with significantly modified photophysics relative to bulk blends or isolated components.
Emrick Todd, Hammer Nathan, Barnes Michael   +2 more
doaj   +1 more source

Morphological Stabilization of CsPbBr3 Quantum Dot Films Enabled by PVC‐g‐PMMA Graft Copolymer Encapsulation for Water‐Robust Color Conversion

Small, EarlyView.
Poly(vinyl chloride)‐graft‐poly(methyl methacrylate) encapsulation enabled formation of water‐stable CsPbBr3‐quantum‐dot fims with enhanced photoluminescence (PL) retention upon exposure to water, UV radiation, and ethanol. Time‐dependent ex situ transmission electron microscopy with quantitative particle segmentation identified the coefficient of ...
Seung Ryeol Song, Kyungwon Seo, Uoon Chul Baek, Min‐Gon Shin, Chanwung Mun, Hyosung An, Jung Tae Park   +6 more
wiley   +1 more source

Stress compensation by gap monolayers for stacked InAs/GaAs quantum dots solar cells [PDF]

, 2008
In this work we report the stacking of 10 and 50 InAs quantum dots layers using 2 monolayers of GaP for stress compensation and a stack period of 18 nm on GaAs (001) substrates. Very good structural and optical quality is found in both samples.
Ripalda Cobián, Jose María, Alén Millán, Benito, González Soto, Luisa, González Taboada, Alfonso, González Diez, M. Yolanda, Alonso Alvarez, Diego, Briones Fernández-Pola, Fernando, Sánchez, Almudena M., Luque López, Antonio, García Martín, Jorge Miguel, Molina Rubio, Sergio Ignacio, Martí Vega, Antonio   +11 more
core  

Strong spin-orbit interaction, helical hole states, and spin qubits in nanowires and quantum dots [PDF]

, 2014
Semiconducting nanowires (NWs) and quantum dots (QDs) are promising platforms for spintronics and quantum computation. Great experimental and theoretical efforts have been made to continuously improve their performances, which is evident from the large ...
Klöffel, Christoph
core   +1 more source

Unraveling the Proton‐Induced Degradation Mechanism in Quantum‐Dots Light‐Emitting Diode for Space Applications

Small, EarlyView.
Low‐energy proton irradiation induces ligand detachment at the QD/ZnO interface in quantum‐dot light‐emitting diodes (QLEDs). The exposed ZnS surface interacts with ZnO defects, generating a high density of interfacial trap states that promote electron trapping, suppress charge injection, and accelerate non‐radiative recombination, ultimately leading ...
Chanwoo Lim, Tai Nguyen, Chanmin Kim, Darshpreet Kaur Saini, Todd A. Byers, Youngjo Choi, Bibhudutta Rout, Dong Hyun Kim, Jun Hong Noh, Soong Ju Oh, Taeyeon Kim, Jae‐Hyeon Ahn, Do Young Kim, Hyeonggeun Yu   +13 more
wiley   +1 more source

PbSe quantum dots grown in a high-index low-melting-temperature glass for infrared laser applications [PDF]

, 2013
PbSe quantum dots (QDs) were grown in high-refractive-index low-melting-temperature lead-phosphate glass. QDs with various sizes ranging from 2 nm to 5.3 nm were grown by controlling the growth parameters, heat-treatment temperature and time.
Leonard, V., Shepherd, D.P., P. Kannan, D. P. Shepherd, X. Feng, Choudhary, Amol, Pradeesh, Kannan, Mills, B., D. W. Hewak, V. M. Leonard, B. Mills, A. Choudhary, Hewak, D.W., Feng, X.   +13 more
core   +1 more source

Annealing effect on photovoltaic performance of CdSe quantum-dots-sensitized TiO 2 nanorod solar cells

, 2012
Large area rutile TiO2 nanorod arrays were grown on F:SnO2 (FTO) conductive glass using a hydrothermal method at low temperature. CdSe quantum dots (QDs) were deposited onto single-crystalline TiO2 nanorod arrays by a chemical bath deposition (CBD ...
Yi-Tan Li, Lin Wei, Rui-Zi Zhang, Yan-Xue Chen, J. Jiao   +4 more
semanticscholar   +1 more source

Recent Advances in Oriented Hydrogels: From Fundamental Mechanisms to Future Challenges

SusMat, EarlyView.
Traditional hydrogels suffer from weak mechanical properties and limited functionality due to their random polymer networks. This review comprehensively summarizes the reinforcement mechanisms of oriented structure for hydrogels, the design/fabrication strategies, and the latest application progress of high‐strength oriented hydrogels.
Chang Xu, Xijing Zhuang
wiley   +1 more source

Two‐Dimensional Materials For Lateral Flow Assays: A Critical Review of Functional Roles and Translational Challenges

VIEW, EarlyView.
2D nanosheets, with large surface area, excellent optical/electrical properties, and high specificity, combine with lateral flow assay strips to enable rapid, readable detection, boosting the strips’ development and applications. Abstract Lateral flow assays (LFAs) are widely used for point‐of‐care diagnostics, but their detection capability remains ...
Weimin Xu, Ruping Liu, Na Gao, Jianxiao Zhu, Haowen Jiang, Shouzheng Jiao, Zhicheng Sun, Kai Shen, Gaolian Xu, Minghua Du, Ziyan Li, Yang Wang   +11 more
wiley   +1 more source