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Song, Myoung Hoon
Organic Photonics & Optoelectronics Lab
Research Interests
  • Organic optoelectrics, perovskite light-emitting diodes, surface treatment, photonic crystals

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Solution processable small molecules as efficient electron transport layers in organic optoelectronic devices

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dc.contributor.author Kim, Jun Tae ko
dc.contributor.author Lee, Jihoon ko
dc.contributor.author Jan, Soyeong ko
dc.contributor.author Yu, Zhongkai ko
dc.contributor.author Park, Jong Hyun ko
dc.contributor.author Jung, Eui Dae ko
dc.contributor.author Lee, Seungjin ko
dc.contributor.author Song, Myoung Hoon ko
dc.contributor.author Whang, Dong Ryeol ko
dc.contributor.author Wu, Sangwook ko
dc.contributor.author Park, Sung Heum ko
dc.contributor.author Chang, Dong Wook ko
dc.contributor.author Lee, Bo Ram ko
dc.date.available 2020-07-24T02:41:50Z -
dc.date.created 2020-07-22 ko
dc.date.issued 2020-07 ko
dc.identifier.citation JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.27, pp.13501 - 13508 ko
dc.identifier.issn 2050-7488 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/36812 -
dc.description.abstract Organic semiconductor-based optoelectronic devices, such as organic solar cells (OSCs) and organic light-emitting diodes (OLEDs), have been investigated for solution-processable roll-to-roll electronic devices. However, for commercial applications, OSCs and OLEDs require highly efficient device performance and effective fabrication processing methods. To achieve this, this work reports the use of solution-processable quinoxaline–phosphine oxide based small molecules (QPSMs) as electron transport layers (ETLs) in OSCs and OLEDs. QPSMs can be dissolved in alcohol owing to the strong dipole moments within their molecular structures, thereby resulting in simple and effective processing during device fabrication. Moreover, QPSMs improve electron injection/extraction via the well-matched energy levels in both OSCs and OLEDs. In particular, optimized OSCs and OLEDs with ((4-(2,3-diphenylquinoxalin-5-yl)phenyl)diphenylphosphine oxide, QxTPPO1) show power conversion efficiency (PCE) of 16.83% in polymer donor : nonfullerene acceptor systems, PCE of 10.07% in polymer donor : fullerene acceptor systems, and external quantum efficiency of 5.00%, which are enhanced by approximately 23%, 19%, and 12%, respectively, compared to those of the reference devices, thereby exhibiting improved device stability. ko
dc.language 영어 ko
dc.publisher Royal Society of Chemistry ko
dc.title Solution processable small molecules as efficient electron transport layers in organic optoelectronic devices ko
dc.type ARTICLE ko
dc.type.rims ART ko
dc.identifier.doi 10.1039/D0TA04802J ko
dc.identifier.url https://pubs.rsc.org/en/content/articlelanding/2020/ta/d0ta04802j#!divAbstract ko
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