Full-colour quantum dot displays fabricated by transfer printing
- Authors
- Kim, TH; Cho, KS; Lee, EK; Lee, SJ; Chae, J; Kim, JW; Kim, DH; Kwon, JY; Amaratunga, G; Lee, SY; Choi, BL; Kuk, Y; Kim, JM; Kim, K
- Issue Date
- Mar-2011
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE PHOTONICS, v.5, pp.176 - 182
- Journal Title
- NATURE PHOTONICS
- Volume
- 5
- Start Page
- 176
- End Page
- 182
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/5999
- DOI
- 10.1038/NPHOTON.2011.12
- ISSN
- 1749-4885
- 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.
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Collections - College of Engineering > Department of Organic Materials and Fiber Engineering > 1. Journal Articles
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