Results 341 to 350 of about 218,035 (381)
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Science, 2008
The critical role that dopants play in semiconductor devices has stimulated research on the properties and the potential applications of semiconductor nanocrystals, or colloidal quantum dots, doped with intentional impurities. We review advances in the chemical synthesis of doped nanocrystals, in the theoretical understanding of the fundamental ...
David J, Norris +2 more
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The critical role that dopants play in semiconductor devices has stimulated research on the properties and the potential applications of semiconductor nanocrystals, or colloidal quantum dots, doped with intentional impurities. We review advances in the chemical synthesis of doped nanocrystals, in the theoretical understanding of the fundamental ...
David J, Norris +2 more
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Optical gain and stimulated emission in nanocrystal quantum dots.
Science, 2000The development of optical gain in chemically synthesized semiconductor nanoparticles (nanocrystal quantum dots) has been intensely studied as the first step toward nanocrystal quantum dot lasers. We examined the competing dynamical processes involved in
V. Klimov +7 more
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Doping in silicon nanocrystals
Surface Science, 2007The absorption and, for the first time, the emission spectra of doped silicon nanocrystals have been calculated within a first-principles framework including geometry optimization. Starting from hydrogenated silicon nanocrystals, simultaneous n- and p-type doping with boron and phosphorous impurities have been considered.
Ossicini S +8 more
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Colloidal synthesis of nanocrystals and nanocrystal superlattices
IBM Journal of Research and Development, 2001This paper provides an overview of the synthetic techniques used to prepare colloidal nanocrystals (NCs) of controlled composition, size, shape, and internal structure and the methods for manipulat...
Christopher B. Murray +5 more
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Nano letters (Print), 2016
High photoluminescence quantum yield, easily tuned emission colors, and high color purity of perovskite nanocrystals make this class of material attractive for light source or display applications.
Xiaoyu Zhang +6 more
semanticscholar +1 more source
High photoluminescence quantum yield, easily tuned emission colors, and high color purity of perovskite nanocrystals make this class of material attractive for light source or display applications.
Xiaoyu Zhang +6 more
semanticscholar +1 more source
Spectroscopic and Device Aspects of Nanocrystal Quantum Dots.
Chemical Reviews, 2016The field of nanocrystal quantum dots (QDs) is already more than 30 years old, and yet continuing interest in these structures is driven by both the fascinating physics emerging from strong quantum confinement of electronic excitations, as well as a ...
J. Pietryga +6 more
semanticscholar +1 more source
Journal of the Optical Society of America A, 2013
X-ray femtosecond nanocrystallography is a new, potentially powerful technique for imaging biological macromolecules that uses ensemble-averaged measurements of diffraction of x-ray free-electron laser pulses from nanocrytalline specimens. Nanocrystals have some diffraction characteristics that are distinct from those of macroscopic crystals, due to ...
Joe P J, Chen, Rick P, Millane
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X-ray femtosecond nanocrystallography is a new, potentially powerful technique for imaging biological macromolecules that uses ensemble-averaged measurements of diffraction of x-ray free-electron laser pulses from nanocrytalline specimens. Nanocrystals have some diffraction characteristics that are distinct from those of macroscopic crystals, due to ...
Joe P J, Chen, Rick P, Millane
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Nature Chemistry, 2015
Nanocrystals with precisely defined structures offer promise as components of advanced materials yet they are challenging to create. Now, a nanocrystal made up of seven cadmium and twelve chloride ions has been synthesized via a biotemplating approach that uses a de novo designed protein.
Shang, Li, Nienhaus, Gerd Ulrich
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Nanocrystals with precisely defined structures offer promise as components of advanced materials yet they are challenging to create. Now, a nanocrystal made up of seven cadmium and twelve chloride ions has been synthesized via a biotemplating approach that uses a de novo designed protein.
Shang, Li, Nienhaus, Gerd Ulrich
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Angewandte Chemie International Edition, 2004
Thiswork was supported by the Camille and Henry Dreyfus Foundation, Beckman Foundation, the National Science Foundation (CAREER) and Department of Energy. P.Y. isan Alfred P. Sloan Research Fellow.Work at the Lawrence Berkeley National Laboratory was supported by the Office of Science, Basic Energy Sciences, Division of Materials Science of the U ...
Kim, F +4 more
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Thiswork was supported by the Camille and Henry Dreyfus Foundation, Beckman Foundation, the National Science Foundation (CAREER) and Department of Energy. P.Y. isan Alfred P. Sloan Research Fellow.Work at the Lawrence Berkeley National Laboratory was supported by the Office of Science, Basic Energy Sciences, Division of Materials Science of the U ...
Kim, F +4 more
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Photolithography based on nanocrystals
Science, 2017Surface chemistry of all-inorganic nanomaterials enables three-dimensional ...
Striccoli, Marinella
openaire +5 more sources