Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김태환 | - |
dc.date.accessioned | 2020-11-13T06:19:53Z | - |
dc.date.available | 2020-11-13T06:19:53Z | - |
dc.date.issued | 2019-11 | - |
dc.identifier.citation | NANO ENERGY, v. 65, article no. UNSP 104027 | en_US |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.issn | 2211-3282 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S2211285519307347?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/155548 | - |
dc.description.abstract | Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is a promising material for utilization in flexible transparent electrodes. However, because the conductivity of PEDOT:PSS is as low as 1 S/cm or even lower, PEDOT:PSS has the inherent problem of a conductivity that is too low for it to be used in the fabrication of flexible, transparent electrodes for use in flexible organic light-emitting devices (OLEDs). Here, we report on hole injection enhancement in a highly conductive Pyronin-B-doped PEDOT:PSS electrode/hexaazatriphenylene hexacarbonitrile (HAT-CN) layer, a strong electron-accepting charge-generation layer, for use in highly efficient flexible OLEDs. While the conductivity of the pristine PEDOT:PSS is 1 S/cm, that of Pyronin-B-doped PEDOT:PSS is significantly increased to 1467 S/cm due to the dramatically enhanced screening effect for PEDOT:PSS films. The energy-band bending barrier at the interface between the Pyronin-B-doped PEDOT:PSS electrode and the HAT-CN layer is significantly decreased compared to that between the pristine PEDOT:PSS electrode and the HAT-CN layer, resulting in improved hole injection. The operating voltage and the current efficiency of the flexible OLEDs with Pyronin-B-doped PEDOT:PSS/HAT-CN electrodes (6.8 V, 26.03 cd/A) are similar to those of OLEDs with ITO/HAT-CN electrodes (7.7 V, 27.95 cd/A). The brightness of the OLEDs after 900 cycles of bending with a radius of curvature of 5 mm is 80% the initial brightness, indicative of the stability of these flexible devices under repeated bendings. | en_US |
dc.description.sponsorship | This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2019R1A2B5B03069968). This work was also supported by the research fund o Hanyang University (HY-2018). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Flexible OLEDs | en_US |
dc.subject | PEDOT:PSS | en_US |
dc.subject | Pyronin-B | en_US |
dc.subject | Transparent electrode | en_US |
dc.subject | Conductivity | en_US |
dc.subject | Band bending | en_US |
dc.title | Highly efficient flexible organic light-emitting devices based on PEDOT:PSS electrodes doped with highly conductive Pyronin B | en_US |
dc.type | Article | en_US |
dc.relation.volume | 65 | - |
dc.identifier.doi | 10.1016/j.nanoen.2019.104027 | - |
dc.relation.page | 104027-104027 | - |
dc.relation.journal | NANO ENERGY | - |
dc.contributor.googleauthor | Kim, Dae Hun | - |
dc.contributor.googleauthor | Park, Na Hyun | - |
dc.contributor.googleauthor | Kim, Tae Whan | - |
dc.relation.code | 2019036956 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ELECTRONIC ENGINEERING | - |
dc.identifier.pid | twk | - |
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