Upconversion nanocrystal ‘armoured’ silica fibres with superior photoluminescence for miRNA detection
نویسندگان
چکیده
منابع مشابه
Photoluminescence Upconversion in GaAs Quantum Wells
We present a detailed experimental study of photoluminescence upconversion in GaAs quantum wells over a wide temperature range. The dependence of the upconversion on the well width is discussed and the conversion efficiency is determined as a function of laser detuning. The best results are achieved when the laser detuning is comparable to the thermal energy of the system, ∆E ≈ 2kBT .
متن کاملPhotoluminescence upconversion in colloidal CdTe quantum dots
Efficient photoluminescence ~PL! up-conversion has been observed in colloidal CdTe quantum dots with an energy gain of as high as 360 meV. Compared with the normal PL, the peak energy of this up-converted PL ~UCPL! shows a redshift of about 80 meV, and the corresponding radiative lifetime becomes nearly twice as long. This UCPL is attributed to the carrier recombination involving surface states...
متن کاملA4.4 Reliability of Silica Fibres
The total length of silica optical fibre now installed around the world measures in the tens of Gm; the majority of it for telecommunications applications. While the fibre has proved reliable so far, with most failures being caused by external factors such as ‘dig-ups’ [1], the huge capital investment involved requires that long term reliability be treated as a serious issue. FIGURE 1 shows a W...
متن کاملThree - Dimensional Gold Nanocrystal / Silica Arrays
www.sciencemag.org (this information is current as of December 21, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/304/5670/567 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/304/5670/567/DC1 can be fou...
متن کاملislanding detection methods for microgrids
امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Communications
سال: 2018
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c8cc03480j