Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Federico Pevere"'
Autor:
Mikhail Nestoklon, A. V. Belolipetskiy, Ivan D. Avdeev, I. N. Yassievich, Federico Pevere, Ilya Sychugov, Jan Linnros
Publikováno v:
Faraday Discussions. 222:258-273
We develop an empirical tight binding approach for the modeling of the electronic states and optical properties of Si nanocrystals embedded in a SiO2 matrix. To simulate the wide band gap SiO2 matrix we use the virtual crystal approximation. The tigh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1588a23baed1bfb5b9e9ade1a9c816b
https://doi.org/10.1039/c9fd00090a
https://doi.org/10.1039/c9fd00090a
Autor:
Fredrik Stridfeldt, Siddharth S. Sahu, Apurba Dev, Carolina Paba, Doste R Mamand, Sara Cavallaro, Federico Pevere, Samir El Andaloussi, Jan Linnros, André Görgens, Dhanu Gupta
Being a key player in intercellular communications, nanoscale extracellular vesicles (EVs) offer unique opportunities for both diagnostics and therapeutics. However, their cellular origin and functional identity remain elusive due to the high heterog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::540a4243f23c6dd1ffe7add3bd87d2a4
https://www.ncbi.nlm.nih.gov/pubmed/33682363
https://www.ncbi.nlm.nih.gov/pubmed/33682363
Publikováno v:
ACS Photonics. 5:2990-2996
We demonstrate that nonradiative recombination in semiconductor nanocrystals can be described by a rapid luminescence intermittency, based on carrier tunneling to resonant traps. Such process, we call it “rapid trapping (blinking)”, leads to dela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::355156b5cba16d3cc457e3aaebfc81a8
https://doi.org/10.1021/acsphotonics.8b00581
https://doi.org/10.1021/acsphotonics.8b00581
Autor:
Federico Pevere, Ru Zhao, Haizheng Zhong, Changtao Xiao, Lige Liu, Feng Zhang, Kebin Shi, Ilya Sychugov, Houbing Huang
Publikováno v:
The journal of physical chemistry letters. 10(18)
The complex structure of halide and oxide perovskites strongly affects their physical properties. Here, the effect of dimensions reduced to the nanoscale has been investigated by a combination of single-dot optical experiments with a phase transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0562f7385aab08c2aceea4da4ae155c2
https://pubmed.ncbi.nlm.nih.gov/31465691
https://pubmed.ncbi.nlm.nih.gov/31465691
Autor:
Yashar Hormozan, Benjamin Bruhn, Jan Linnros, Fatemeh Sangghaleh, Ilya Sychugov, Federico Pevere
Publikováno v:
physica status solidi (a). 212:2692-2695
Bulk silicon as an indirect bandgap semiconductor is a poor light emitter. In contrast, silicon nanocrystals (Si NCs) exhibit strong emission even at room temperature, discovered initially at 1990 for porous silicon by Leigh Canham. This can be expla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03085b58ebccd1cabedf995432bf45b5
https://doi.org/10.1002/pssa.201532652
https://doi.org/10.1002/pssa.201532652
Publikováno v:
The Journal of Physical Chemistry C. 119:7499-7505
Biexciton emission from individual silicon nanocrystals was detected at room temperature by time-resolved, single-particle luminescence measurements. The efficiency of this process, however, was found to be very low, about 10–20 times less than the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ad96fce97ebbc7cbbb18d4c9a5d00b5
https://doi.org/10.1021/acs.jpcc.5b01114
https://doi.org/10.1021/acs.jpcc.5b01114
Autor:
Benjamin Bruhn, Monib Anwar, Carl von Treskow, Ilya Sychugov, Federico Pevere, Jan Linnros, Emanuele Marino
Publikováno v:
Applied Physics Letters. 113:253103
We study the effect of X-ray irradiation on the photoluminescence (PL) efficiency and intermittency (blinking) of single Si/SiO2 and CdSe/CdZnS quantum dots (QDs). Our results show that the PL efficiency of Si nanocrystals is not significantly altere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e2079c358ea556e34171962e710f5e5
https://doi.org/10.1063/1.5053885
https://doi.org/10.1063/1.5053885
Publikováno v:
Nature nanotechnology. 12(10)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e83ae50a1ea531eb3a99a881c099e34d
https://pubmed.ncbi.nlm.nih.gov/28945236
https://pubmed.ncbi.nlm.nih.gov/28945236
Autor:
Anna Fucikova, Federico Pevere, Jonathan G. C. Veinot, Jan Linnros, Zhenyu Yang, Ilya Sychugov
Publikováno v:
ACS Photonics. 1:998-1005
The luminescence linewidth of individual silicon nanocrystals was characterized by single-dot spectroscopy, and an ultranarrow linewidth of similar to 200 mu eV at 10 K was found. This value is, in fact, limited by system resolution and represents on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89537c6ce83af828ffd8341eb2a7423c
https://doi.org/10.1021/ph500221z
https://doi.org/10.1021/ph500221z
Autor:
Jan Linnros, Ilya Sychugov, Fatemeh Sangghaleh, Benjamin Bruhn, Jun-Wei Luo, Federico Pevere, Alex Zunger
Publikováno v:
Nano letters. 16(12)
We report two orders of magnitude stronger absorption in silicon nanorods relative to bulk in a wide energy range. The local field enhancement and dipole matrix element contributions were disentangled experimentally by single-dot absorption measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d02ae36258bba2e0ff9399bff2230ac0
https://pubmed.ncbi.nlm.nih.gov/27960529
https://pubmed.ncbi.nlm.nih.gov/27960529