Abstract
Colloidal semiconductor nanocrystals, also known as "quantum dots" (QDs), represent an example of a disruptive technology for display and lighting applications. Their high luminescence efficiency and tunable, narrow emission are nearly ideal for achieving saturated colors and enriching the display or TV color gamut. Our contribution will discuss the next generation of inorganic nanostructures with electronic structure optimized for achieving emission characteristics beyond traditional near-spherical QDs. For example, nano-heterostructures with spherical CdSe QDs epitaxially integrated into CdS quantum rods combine high luminescence efficiency with giant extinction coefficients, large Stokes shifts, and linearly polarized emission. Such a set of characteristics can be ideal for LCD backlighting. The other class of emitters includes colloidal quantum wells (QWs) whose ensemble luminescence is significantly narrower than emission spectra of the best QD samples. Moreover, we show that colloidal QWs produce amplified spontaneous emission (ASE) with pump-fluence thresholds as low as 6 μJ/cm2 and gain as high as 600 cm-1, on par with the best values for any solution-processed material.
| Original language | English |
|---|---|
| Title of host publication | Digest of Technical Papers - SID International Symposium |
| Publisher | Blackwell Publishing Ltd |
| Pages | 134-137 |
| Number of pages | 4 |
| Volume | 45 |
| Edition | 1 |
| DOIs | |
| Publication status | Published - 2014 |
Fingerprint
Keywords
- emission
- lasing
- quantum dot
- quantum well
ASJC Scopus subject areas
- Engineering(all)
Cite this
Colloidal quantum rods and wells for lighting and lasing applications. / She, Chunxing; Fedin, Igor; Boles, Michael A.; Dolzhnikov, Dmitriy S.; Schaller, Richard D; Pelton, Matthew; Talapin, Dmitri V.
Digest of Technical Papers - SID International Symposium. Vol. 45 1. ed. Blackwell Publishing Ltd, 2014. p. 134-137.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Colloidal quantum rods and wells for lighting and lasing applications
AU - She, Chunxing
AU - Fedin, Igor
AU - Boles, Michael A.
AU - Dolzhnikov, Dmitriy S.
AU - Schaller, Richard D
AU - Pelton, Matthew
AU - Talapin, Dmitri V.
PY - 2014
Y1 - 2014
N2 - Colloidal semiconductor nanocrystals, also known as "quantum dots" (QDs), represent an example of a disruptive technology for display and lighting applications. Their high luminescence efficiency and tunable, narrow emission are nearly ideal for achieving saturated colors and enriching the display or TV color gamut. Our contribution will discuss the next generation of inorganic nanostructures with electronic structure optimized for achieving emission characteristics beyond traditional near-spherical QDs. For example, nano-heterostructures with spherical CdSe QDs epitaxially integrated into CdS quantum rods combine high luminescence efficiency with giant extinction coefficients, large Stokes shifts, and linearly polarized emission. Such a set of characteristics can be ideal for LCD backlighting. The other class of emitters includes colloidal quantum wells (QWs) whose ensemble luminescence is significantly narrower than emission spectra of the best QD samples. Moreover, we show that colloidal QWs produce amplified spontaneous emission (ASE) with pump-fluence thresholds as low as 6 μJ/cm2 and gain as high as 600 cm-1, on par with the best values for any solution-processed material.
AB - Colloidal semiconductor nanocrystals, also known as "quantum dots" (QDs), represent an example of a disruptive technology for display and lighting applications. Their high luminescence efficiency and tunable, narrow emission are nearly ideal for achieving saturated colors and enriching the display or TV color gamut. Our contribution will discuss the next generation of inorganic nanostructures with electronic structure optimized for achieving emission characteristics beyond traditional near-spherical QDs. For example, nano-heterostructures with spherical CdSe QDs epitaxially integrated into CdS quantum rods combine high luminescence efficiency with giant extinction coefficients, large Stokes shifts, and linearly polarized emission. Such a set of characteristics can be ideal for LCD backlighting. The other class of emitters includes colloidal quantum wells (QWs) whose ensemble luminescence is significantly narrower than emission spectra of the best QD samples. Moreover, we show that colloidal QWs produce amplified spontaneous emission (ASE) with pump-fluence thresholds as low as 6 μJ/cm2 and gain as high as 600 cm-1, on par with the best values for any solution-processed material.
KW - emission
KW - lasing
KW - quantum dot
KW - quantum well
UR - http://www.scopus.com/inward/record.url?scp=84905020468&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905020468&partnerID=8YFLogxK
U2 - 10.1002/j.2168-0159.2014.tb00037.x
DO - 10.1002/j.2168-0159.2014.tb00037.x
M3 - Chapter
VL - 45
SP - 134
EP - 137
BT - Digest of Technical Papers - SID International Symposium
PB - Blackwell Publishing Ltd
ER -