Multilayer Transfer Printing for Pixelated, Multicolor Quantum Dot Light-Emitting Diodes
- Title
- Multilayer Transfer Printing for Pixelated, Multicolor Quantum Dot Light-Emitting Diodes
- Author
- 오누리
- Keywords
- quantum dots; light-emitting diode; transfer printing; energy band diagram
- Issue Date
- 2016-04
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS NANO, v.10, no.5, page.4920-4925
- Abstract
- Here, we report multilayer stacking of films of quantum dots (QDs) for the purpose of tailoring the energy band alignment between charge transport layers and light emitting layers of different color in quantum dot light emitting diodes (QD LED) for maximum efficiency in full color operation. The performance of QD LEDs formed by transfer printing compares favorably to that of conventional devices fabricated by spin-casting. Results indicate that zinc oxide (ZnO) and titanium dioxide (TiO2) can serve effectively as electron transport layers (ETLs) for red and green/blue QD LEDs, respectively. Optimized selections for each QD layer can be assembled at high yields by transfer printing with sacrificial fluoropolymer thin films to provide low energy surfaces for release, thereby allowing shared common layers for hole injection (HIL) and hole transport (HTL), along with customized ETLs. This strategy allows cointegration of devices with heterogeneous energy band diagrams, in a parallelized scheme that offers potential for high throughput and practical use.
- URI
- https://pubs.acs.org/doi/10.1021/acsnano.5b06387http://hdl.handle.net/20.500.11754/47677
- ISSN
- 1936-0851; 1936-086X
- DOI
- 10.1021/acsnano.5b06387
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML