Luminance Efficiency Enhancement in Organic Light-Emitting Devices Utilizing 4,7-Diphenyl-1,10-phenanthroline/aluminum tris(8-hydroxyquinoline) Multiple Heterostructures Acting as an Electron Transport Layer
- Title
- Luminance Efficiency Enhancement in Organic Light-Emitting Devices Utilizing 4,7-Diphenyl-1,10-phenanthroline/aluminum tris(8-hydroxyquinoline) Multiple Heterostructures Acting as an Electron Transport Layer
- Other Titles
- aluminum tris(8-hydroxyquinoline) Multiple Heterostructures Acting as an Electron Transport Layer
- Author
- 김태환
- Keywords
- Current density; Electron transport layer; Hole blocking; Luminance efficiency; Multiple heterostructure; Organic light-emitting diode
- Issue Date
- 2011-10
- Publisher
- TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS,551(SI),40-46
- Abstract
- The electrical and optical properties of organic light-emitting devices (OLEDs) with three periods of 4,7-diphenyl-1,10-phenanthroline (BPhen)/aluminum tris(8-hydroxyquinolate) (Alq(3)) multiple heterostructures acting as an electron transport layer (ETL) were investigated. While the leakage current of OLEDs with multiple heterostructures was smaller than that of OLEDs without multiple heterostructures, the luminance efficiency was larger than that of OLEDs without multiple heterostructures. The BPhen layers in the multiple heterostructures blocked holes from the emitting layer (EML) to the ETL, and they enhanced the electron injection from the cathode to the EML, resulting in an increase in the luminance efficiency.
- URI
- http://www.tandfonline.com/doi/abs/10.1080/15421406.2011.600129http://hdl.handle.net/20.500.11754/38107
- ISSN
- 1542-1406; 1563-5287
- DOI
- 10.1080/15421406.2011.600129
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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