Abstract
Light-emitting diodes with quantum dot luminophores show promise in the development of next-generation displays, because quantum dot luminophores demonstrate high quantum yields, extremely narrow emission, spectral tunability and high stability, among other beneficial characteristics. However, the inability to achieve size-selective quantum dot patterning by conventional methods hinders the realization of full-colour quantum dot displays. Here, we report the first demonstration of a large-area, full-colour quantum dot display, including in flexible form, using optimized quantum dot films, and with control of the nano-interfaces and carrier behaviour. Printed quantum dot films exhibit excellent morphology, well-ordered quantum dot structure and clearly defined interfaces. These characteristics are achieved through the solvent-free transfer of quantum dot films and the compact structure of the quantum dot networks. Significant enhancements in charge transport/balance in the quantum dot layer improve electroluminescent performance. A method using plasmonic coupling is also suggested to further enhance luminous efficiency. The results suggest routes towards creating large-scale optoelectronic devices in displays, solid-state lighting and photovoltaics.
| Original language | English |
|---|---|
| Pages (from-to) | 176-182 |
| Number of pages | 7 |
| Journal | Nature Photonics |
| Volume | 5 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2011 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
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Full-colour quantum dot displays fabricated by transfer printing. / Kim, Tae Ho; Cho, Kyung Sang; Lee, Eun Kyung; Lee, Sang Jin; Chae, Jungseok; Kim, Jung Woo; Kim, Do Hwan; Kwon, Jang Yeon; Amaratunga, Gehan; Lee, Sang Yoon; Choi, Byoung Lyong; Kuk, Young; Kim, Jong Min; Kim, Kinam.
In: Nature Photonics, Vol. 5, No. 3, 01.03.2011, p. 176-182.Research output: Contribution to journal › Article
TY - JOUR
T1 - Full-colour quantum dot displays fabricated by transfer printing
AU - Kim, Tae Ho
AU - Cho, Kyung Sang
AU - Lee, Eun Kyung
AU - Lee, Sang Jin
AU - Chae, Jungseok
AU - Kim, Jung Woo
AU - Kim, Do Hwan
AU - Kwon, Jang Yeon
AU - Amaratunga, Gehan
AU - Lee, Sang Yoon
AU - Choi, Byoung Lyong
AU - Kuk, Young
AU - Kim, Jong Min
AU - Kim, Kinam
PY - 2011/3/1
Y1 - 2011/3/1
N2 - Light-emitting diodes with quantum dot luminophores show promise in the development of next-generation displays, because quantum dot luminophores demonstrate high quantum yields, extremely narrow emission, spectral tunability and high stability, among other beneficial characteristics. However, the inability to achieve size-selective quantum dot patterning by conventional methods hinders the realization of full-colour quantum dot displays. Here, we report the first demonstration of a large-area, full-colour quantum dot display, including in flexible form, using optimized quantum dot films, and with control of the nano-interfaces and carrier behaviour. Printed quantum dot films exhibit excellent morphology, well-ordered quantum dot structure and clearly defined interfaces. These characteristics are achieved through the solvent-free transfer of quantum dot films and the compact structure of the quantum dot networks. Significant enhancements in charge transport/balance in the quantum dot layer improve electroluminescent performance. A method using plasmonic coupling is also suggested to further enhance luminous efficiency. The results suggest routes towards creating large-scale optoelectronic devices in displays, solid-state lighting and photovoltaics.
AB - Light-emitting diodes with quantum dot luminophores show promise in the development of next-generation displays, because quantum dot luminophores demonstrate high quantum yields, extremely narrow emission, spectral tunability and high stability, among other beneficial characteristics. However, the inability to achieve size-selective quantum dot patterning by conventional methods hinders the realization of full-colour quantum dot displays. Here, we report the first demonstration of a large-area, full-colour quantum dot display, including in flexible form, using optimized quantum dot films, and with control of the nano-interfaces and carrier behaviour. Printed quantum dot films exhibit excellent morphology, well-ordered quantum dot structure and clearly defined interfaces. These characteristics are achieved through the solvent-free transfer of quantum dot films and the compact structure of the quantum dot networks. Significant enhancements in charge transport/balance in the quantum dot layer improve electroluminescent performance. A method using plasmonic coupling is also suggested to further enhance luminous efficiency. The results suggest routes towards creating large-scale optoelectronic devices in displays, solid-state lighting and photovoltaics.
UR - http://www.scopus.com/inward/record.url?scp=79952187461&partnerID=8YFLogxK
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U2 - 10.1038/nphoton.2011.12
DO - 10.1038/nphoton.2011.12
M3 - Article
AN - SCOPUS:79952187461
VL - 5
SP - 176
EP - 182
JO - Nature Photonics
JF - Nature Photonics
SN - 1749-4885
IS - 3
ER -