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NOGUCHI Yutaka
Department Undergraduate School , School of Science and Technology Position Professor |
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| Language | English |
| Publication Date | 2021/07 |
| Type | Academic Journal |
| Peer Review | Peer reviewed |
| Title | Active refractive index control using a stably evaporable perfluororesin for high-outcoupling-efficiency organic light-emitting diodes |
| Contribution Type | Co-authored (other than first author) |
| Journal | Journal of Materials Chemistry C |
| Journal Type | Another Country |
| Publisher | Royal Society of Chemistry |
| Volume, Issue, Page | 9,pp.11115-11125 |
| Total page number | 11 |
| Authorship | Last author |
| Author and coauthor | Daisuke Yokoyama, Tatsuki Sasaki, Yasutaka Suzuki, Takefumi Abe, Kaori Tsuruoka, Tatsuya Miyajima, Toshifumi Kakiuchi, Chiho Morita, Masaharu Aoki, Yasuhiro Ouchi, Wataru Aita, Yasuhiro Kuwana, Yutaka Noguchi |
| Details | Here, a method is proposed for outcoupling enhancement that actively controls the refractive index of a hole transport layer (HTL) in OLEDs using a stably evaporable perfluororesin, which has a low refractive index and high amorphousness. Using the low-index co-deposited HTL, a 1.22-fold enhancement of the outcoupling efficiency of a phosphorescent OLED is demonstrated. The proposed method can be generally applied to OLEDs to significantly enhance their outcoupling efficiency without increasing process cost. The results show the potential of active refractive index control as a major strategy for achieving further high-efficiency OLEDs. |
| DOI | 10.1039/D1TC02478G |