Organic Light-Emitting Diodes with Low Turn-On Voltages and Improved Stability Featuring a PTCDI-C13:CuPc Mixed Hole Injection Layer
Yun, WonMin; Jang, J; Nam, S; Park, CEon; Kim, SeH; Chung, DaeS
| HERO ID | 3576050 |
|---|---|
| In Press | No |
| Year | 2014 |
| Title | Organic Light-Emitting Diodes with Low Turn-On Voltages and Improved Stability Featuring a PTCDI-C13:CuPc Mixed Hole Injection Layer |
| Authors | Yun, WonMin; Jang, J; Nam, S; Park, CEon; Kim, SeH; Chung, DaeS |
| Volume | 6 |
| Issue | 8 |
| Page Numbers | 1676-1680 |
| Abstract | We report herein that a mixed layer of the electron-donating copper phthalocyanine (CuPc) and electron-accepting N,N'-ditridecyl perylene diimide (PTCDI-C13) can be an efficient hole injection layer (HIL) for high-performance organic light-emitting diodes (OLEDs). From photophysical, morphological, and structural studies combined with electrical analysis based on the Mott-Schottky model, we conclude that the excellent miscibility between CuPc and PTCDI-C13 enables highly efficient charge transfer, and thus effective p-doping of CuPc, leading to increased hole conductivity of the HIL. As a result, turn-on voltages as low as 2.45 V and greatly improved thermal stabilities as compared to those of OLEDs with conventional CuPc HILs are observed. |
| Doi | 10.1166/sam.2014.1940 |
| Wosid | WOS:000342480600003 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:SCIENCE OF ADVANCED MATERIALS 1947-2935 |
| Is Public | Yes |
| Keyword | Organic Light Emitting Diode; Hole Injection Layer; Turn on Voltage; Stability; PTCDI |