Results 221 to 230 of about 97,738 (257)

Probing Single Quantum Dots by Micro-photoluminescence

Journal of Nanoscience and Nanotechnology, 2001
Using micro-photoluminescence, emissions from single CdSe quantum dots were observed from the cleaved (110) facets of ZnSe/CdSe/ZnSe heterostructures grown on GaAs (001) substrates. The emission intensity of a single quantum dot was linearly proportional to the excitation intensity, demonstrating excitonic features.
B P, Zhang, L H, Manh, Y, Segawa
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Dot probe performance in two specific phobias

British Journal of Clinical Psychology, 1999
Objectives. The present study applied MacLeod, Mathews & Tata's (1986) dot probe attentional deployment methodology to individuals with specific phobias. Design. Attentional deployment towards spider‐related, blood‐related, positive, negative, and neutral words was examined.
A, Wenzel, C S, Holt
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Quantum dot as probe for disease diagnosis and monitoring

Biotechnology Journal, 2015
AbstractSemiconductor quantum dots (QD) possess unique optical and electric properties like size‐tunable light emission, narrow emission range, high brightness and photostability. Recent research advances have minimized the toxicity of QDs and they are successfully used in in vitro and in vivo imaging.
Abhishek, Mukherjee, Yumi, Shim, Joon, Myong Song   +2 more
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Fabrication of Quantum Dots with Scanning Probe Nanolithography

physica status solidi (b), 2001
We are using an atomic force microscope for the direct fabrication of low-dimensional quantum structures in GaAs/AlGaAs heterostructures. By combining mechanical nanolithography with current-controlled local oxidation it is possible to design devices such as a single-electron transistor with different shapes.
Keyser, U., Schumacher, H., Zeitler, U., Haug, R., Eberl, K.   +4 more
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Quantum dots as probes in biology

Journal of Physics: Condensed Matter, 2013
The recent availability of nanostructured materials has resulted in an explosion of research focused on their unique optical, thermal, mechanical and magnetic properties. Optical imagining, magnetic enhancement of contrast and drug delivery capabilities make the nanoparticles of special interest in biomedical applications.
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B-Dot Probe Measurement

1990
Abstract : The scattering of an incident electromagnetic (EM) plane wave from a single B-dot probe and the interaction and mutual coupling between two B-dot probes were evaluated using a non-invasive, non-perturbing infrared (IR) measurement technique.
Ronald M. Sega, John D. Norgard
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Quantum-dot optical temperature probes

Applied Physics Letters, 2003
The steady-state photoluminescence (PL) properties of cadmium selenide quantum dots (QDs) with a zinc sulfide overlayer [(CdSe)ZnS] can be strongly dependent on temperature in the range from 100 to 315 K. The PL intensity from 50 to 55 Å (CdSe)ZnS QDs in poly(lauryl methacrylate) matrices increases by a factor of ∼5 when the temperature is decreased ...
Glen W. Walker, Vikram C. Sundar, Christina M. Rudzinski, Aetna W. Wun, Moungi G. Bawendi, Daniel G. Nocera   +5 more
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Multiphonon probe in ZnS quantum dots

Journal of Raman Spectroscopy, 2010
AbstractRaman spectroscopic studies have been performed for ZnS nanoclusters in this study. Cluster size dependent multiphonon properties are reported in detail. A flurry of zone boundary phonons is demonstrated in the scattering process. A strong deformation potential (DP) dominated Raman spectra are reported for cubic ZnS nanocluster of diameter with
S. Dhara, A. K. Arora, Santanu Bera, Jay Ghatak   +3 more
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Bioconjugate recognition molecules to quantum dots as tumor probes

Journal of Biomedical Materials Research Part A, 2007
AbstractTransferrin and mouse anti‐human CD71 monoclonal antibody were respectively conjugated covalently to the core/shell CdSe/ZnS quantum dots with 1‐ethyl‐3‐(3‐dimethylaminopropyl) carbodiimide hydrochloride and N‐hydrocylsulfo‐succinimide (Sulfo‐NHS).
Tian-Cai, Liu, Jian-Hao, Wang, Hai-Qiao, Wang, Hai-Li, Zhang, Zhi-Hong, Zhang, Xiao-Feng, Hua, Yuan-Cheng, Cao, Yuan-Di, Zhao, Qing-Ming, Luo   +8 more
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Individual quantum dot spectroscopy probed by a cryogenic scanning probe

AIP Conference Proceedings, 2005
In this paper we report the energy spectra of single electrons confined in a single InAs quantum dot, and single holes confined in a single GaSb quantum dot. These quantum dots are fabricated by laterally reducing the diameter of resonant tunneling (or resonant interband tunneling) diodes.
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