The system can't perform the operation now. Try again later. Citations per year. Duplicate citations. The following articles are merged in Scholar. Their combined citations are counted only for the first article.
|Published (Last):||23 December 2004|
|PDF File Size:||19.45 Mb|
|ePub File Size:||20.88 Mb|
|Price:||Free* [*Free Regsitration Required]|
Here we show that light emission from single fluorescing nanocrystals of cadmium selenide under continuous excitation turns on and off intermittently with a characteristic timescale of about 0. This intermittency is not apparent from ensemble measurements on many nanocrystals.
Thus spectroscopic measurements on single nanocrystals can reveal hitherto unknown aspects of their photophysics. Alivisatos, A. Science , — Brus, L. A 53 , — Colvin, V. Nature , — Dabbousi, B.
Weisbuch, C. Growth , — Kirstaedter, N. Hines, M. Kortan, A. Ambrose, W. Bernard, J. Chepic, D. Roussignol, P. B 4 , 5—13 Murray, C. Becerra, L. Bowen Katari, J. Basche, T. Cook, R. Macklin, J. Norris, D. B 53 , — Download references. Reprints and Permissions.
Nirmal, M. Fluorescence intermittency in single cadmium selenide nanocrystals. Download citation. Received : 01 July Accepted : 24 September Issue Date : 31 October Journal of Superconductivity and Novel Magnetism Journal of Chemical Education Nanotechnology Angewandte Chemie The Journal of Chemical Physics By submitting a comment you agree to abide by our Terms and Community Guidelines.
If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate. Advanced search.
Skip to main content. Subscribe Search My Account Login. Register your interest. Access through your institution. Buy or subscribe. Change institution. Rent or Buy article Get time limited or full article access on ReadCube. References 1 Alivisatos, A.
Author information Author notes M. Brus Authors M. Nirmal View author publications. You can also search for this author in PubMed Google Scholar. View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Nirmal, M. Geetha , S. Higginbotham , Toby D. Palato , H. Seiler , H. Baker , C. Sonnichsen , P.
Kambhampati The Journal of Chemical Physics Comments By submitting a comment you agree to abide by our Terms and Community Guidelines. Nature menu. Nature Research menu. Search Article search Search. Close banner Close. Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily. Enter your email address. Sign up. Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing.
Fluorescence intermittency in single cadmium selenide nanocrystals
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Dabbousi and Moungi G.
The Fluorescence Bioassay Platforms on Quantum Dots Nanoparticles
Continue to access RSC content when you are not at your institution. Follow our step-by-step guide. As colloidal semiconductor nanocrystals are developed for a wider range of diverse applications, it becomes more important to gain a deeper understanding of their properties in order to direct synthetic efforts. While most synthetic developments are guided by changes in ensemble properties, certain applications such as those in nano-electronics and nano-photonics rely on properties of nanocrystals at the individual level. For such applications and even for a more detailed understanding of the ensemble behavior, single nanocrystal spectroscopy becomes a vital tool. This review looks at how single nanocrystal spectroscopy has been applied to materials based on modern synthetic techniques and how these studies are elucidating properties that remain hidden at the ensemble level. First, recent theoretical models that are important for understanding many observed phenomena are explored.
We'd like to understand how you use our websites in order to improve them. Register your interest. In this paper, we present the optical properties and the platforms on fluorescent quantum dots for biological labeling, biomedical engineering and biosensor in molecular imaging. Quantum dots possess several properties that make them very attractive for fluorescent tagging: broad excitation spectrum, narrow emission spectrum, precise tunability of their emission peak, longer fluorescence lifetime than organic fluorophores and negligible photobleaching. We describe how to take such advantages of quantum dots to develop the technology and employ it to build assay platforms. Finally, ultrasensitivity, multicolor, and multiplexing of the technology of semiconductor quantum dots open up promising and interesting possibilities for bioassay platform.