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Economical routes to colloidal nanocrystals

Colloidal semiconductor nanocrystals (NCs) or "quantum dots" offer exquisite control of absorption and emission colors for device applications by tuning their size and shape (1). The proliferation of NC applications has been enabled by the "hot-injection" synthesis, which can tightly control the par... Full description

Journal Title: Science June 12, 2015, Vol.348(6240), pp.1211-1212
Main Author: Hens, Zeger
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0036-8075 ; DOI: 10.1126/science.aab0866
Link: http://search.proquest.com/docview/1904203780/?pq-origsite=primo
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title: Economical routes to colloidal nanocrystals
format: Article
creator:
  • Hens, Zeger
subjects:
  • Reagents
  • Colloids
  • Tuning
  • Nanocrystals
  • Economics
  • Devices
  • Semiconductors
  • Synthesis
  • Miscellaneous Sciences (So)
  • (An)
ispartof: Science, June 12, 2015, Vol.348(6240), pp.1211-1212
description: Colloidal semiconductor nanocrystals (NCs) or "quantum dots" offer exquisite control of absorption and emission colors for device applications by tuning their size and shape (1). The proliferation of NC applications has been enabled by the "hot-injection" synthesis, which can tightly control the particle size to achieve pure colors (2). However, current hot-injection synthesis recipes are largely incompatible with low-cost, large-area remote phosphor applications of NCs. Reagents are too expensive, reaction mixtures too dilute, and conversion yields too low, especially if size tuning is accomplished by adjusting the reaction time. On page 1226 of this issue, Hendricks et al. (3) report on a radical improvement of the hot-injection synthesis economics of metal sulfide NCs by introducing a library of inexpensive thioureas as reagents.
language: eng
source:
identifier: ISSN: 0036-8075 ; DOI: 10.1126/science.aab0866
fulltext: no_fulltext
issn:
  • 00368075
  • 0036-8075
url: Link


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descriptionColloidal semiconductor nanocrystals (NCs) or "quantum dots" offer exquisite control of absorption and emission colors for device applications by tuning their size and shape (1). The proliferation of NC applications has been enabled by the "hot-injection" synthesis, which can tightly control the particle size to achieve pure colors (2). However, current hot-injection synthesis recipes are largely incompatible with low-cost, large-area remote phosphor applications of NCs. Reagents are too expensive, reaction mixtures too dilute, and conversion yields too low, especially if size tuning is accomplished by adjusting the reaction time. On page 1226 of this issue, Hendricks et al. (3) report on a radical improvement of the hot-injection synthesis economics of metal sulfide NCs by introducing a library of inexpensive thioureas as reagents.
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abstractColloidal semiconductor nanocrystals (NCs) or "quantum dots" offer exquisite control of absorption and emission colors for device applications by tuning their size and shape (1). The proliferation of NC applications has been enabled by the "hot-injection" synthesis, which can tightly control the particle size to achieve pure colors (2). However, current hot-injection synthesis recipes are largely incompatible with low-cost, large-area remote phosphor applications of NCs. Reagents are too expensive, reaction mixtures too dilute, and conversion yields too low, especially if size tuning is accomplished by adjusting the reaction time. On page 1226 of this issue, Hendricks et al. (3) report on a radical improvement of the hot-injection synthesis economics of metal sulfide NCs by introducing a library of inexpensive thioureas as reagents.
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date2015-06-12