Abstract
Organic and polymeric electroluminescent (EL) devices working under alternating current (AC) electricity have drawn technological attention due to their light-emitting principles and have great potential for applications. In spite of recent advances in AC EL devices, mechanically robust, patternable full-color emission layers with high brightness have rarely been demonstrated. In this manuscript, we report high-performance full-color AC EL devices with nonradiating polymers solution blended in fluorescent polymer emissive layers. Conventional nonradiating polymers such as poly(styrene) (PS) and poly(α-methyl styrene) in an emissive layer enhanced the brightness of individual red (R), green (G), and blue (B) colors to several thousand cd m-2. Systematic investigation revealed bi-functional roles of PS not only as a diluting agent but also as an electron capturer. This resulted in the hole and electron carriers being balanced in the emissive layer, leading to improved power and current efficiency. Furthermore, our blended emission film consisting of 83 vol % PS is mechanically robust with excellent surface adhesion as well as uniformity, when combined with scratch-tolerant AC device architecture, not only resulted in large area cell operation but also allowed for a solution-based pattern-mask process, giving rise to well-defined R, G, and B cells individually addressable in a single device platform.
| Original language | English |
|---|---|
| Pages (from-to) | 1629-1640 |
| Number of pages | 12 |
| Journal | Journal of Polymer Science, Part B: Polymer Physics |
| Volume | 53 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2015 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Materials Chemistry
Cite this
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High-performance alternating current electroluminescent layers solution blended with mechanically and electrically robust nonradiating polymers. / Jo, Seong Soon; Cho, Sung Hwan; Kim, Hae Jin; Nam, Taewook; Hwang, Ihn; Jung, Seok Heon; Kim, Richard Hahnkee; Velusamy, Dhinesh Babu; Lee, Ju Han; Park, Taejoon; Lee, Jin Kyun; Kim, Dae Eun; Lee, Hyungsuk; Kim, Hyungjun; Park, Cheolmin.
In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 53, No. 23, 01.12.2015, p. 1629-1640.Research output: Contribution to journal › Article
TY - JOUR
T1 - High-performance alternating current electroluminescent layers solution blended with mechanically and electrically robust nonradiating polymers
AU - Jo, Seong Soon
AU - Cho, Sung Hwan
AU - Kim, Hae Jin
AU - Nam, Taewook
AU - Hwang, Ihn
AU - Jung, Seok Heon
AU - Kim, Richard Hahnkee
AU - Velusamy, Dhinesh Babu
AU - Lee, Ju Han
AU - Park, Taejoon
AU - Lee, Jin Kyun
AU - Kim, Dae Eun
AU - Lee, Hyungsuk
AU - Kim, Hyungjun
AU - Park, Cheolmin
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Organic and polymeric electroluminescent (EL) devices working under alternating current (AC) electricity have drawn technological attention due to their light-emitting principles and have great potential for applications. In spite of recent advances in AC EL devices, mechanically robust, patternable full-color emission layers with high brightness have rarely been demonstrated. In this manuscript, we report high-performance full-color AC EL devices with nonradiating polymers solution blended in fluorescent polymer emissive layers. Conventional nonradiating polymers such as poly(styrene) (PS) and poly(α-methyl styrene) in an emissive layer enhanced the brightness of individual red (R), green (G), and blue (B) colors to several thousand cd m-2. Systematic investigation revealed bi-functional roles of PS not only as a diluting agent but also as an electron capturer. This resulted in the hole and electron carriers being balanced in the emissive layer, leading to improved power and current efficiency. Furthermore, our blended emission film consisting of 83 vol % PS is mechanically robust with excellent surface adhesion as well as uniformity, when combined with scratch-tolerant AC device architecture, not only resulted in large area cell operation but also allowed for a solution-based pattern-mask process, giving rise to well-defined R, G, and B cells individually addressable in a single device platform.
AB - Organic and polymeric electroluminescent (EL) devices working under alternating current (AC) electricity have drawn technological attention due to their light-emitting principles and have great potential for applications. In spite of recent advances in AC EL devices, mechanically robust, patternable full-color emission layers with high brightness have rarely been demonstrated. In this manuscript, we report high-performance full-color AC EL devices with nonradiating polymers solution blended in fluorescent polymer emissive layers. Conventional nonradiating polymers such as poly(styrene) (PS) and poly(α-methyl styrene) in an emissive layer enhanced the brightness of individual red (R), green (G), and blue (B) colors to several thousand cd m-2. Systematic investigation revealed bi-functional roles of PS not only as a diluting agent but also as an electron capturer. This resulted in the hole and electron carriers being balanced in the emissive layer, leading to improved power and current efficiency. Furthermore, our blended emission film consisting of 83 vol % PS is mechanically robust with excellent surface adhesion as well as uniformity, when combined with scratch-tolerant AC device architecture, not only resulted in large area cell operation but also allowed for a solution-based pattern-mask process, giving rise to well-defined R, G, and B cells individually addressable in a single device platform.
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U2 - 10.1002/polb.23796
DO - 10.1002/polb.23796
M3 - Article
VL - 53
SP - 1629
EP - 1640
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
SN - 0887-6266
IS - 23
ER -