| 학회 |
한국고분자학회 |
| 학술대회 |
2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 |
30권 2호 |
| 발표분야 |
유기형광체 |
| 제목 |
Study on the origin of green emission of polyfluorenes and oligofluorenes |
| 초록 |
It is well known that blue-light emitting polyfluorene suffers from unwanted color change when exposed to high temperature or electric field. It is generally believed that excimer formation or keto-defect is responsible for the green emission of polyfluorene. We performed time-resolved photoluminescence spectroscopy using oligofluorenes with varying side chains and end-capping groups, which have higher purity compared to polyfluorenes. Using pristine and thermally annealed oligofluorene films, two different modes of green emissions were observed which would have different origins. Moreover, morphology effect on green emission of oligofluorene films will be also presented. |
| 저자 |
강지훈1, 신나율1, 조정호2, Panagiotis Keivanidis3, Frederic Laquai3, Gerhard Wegner3, 윤도영1
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| 소속 |
1서울대, 2LG 화학, 3Max-Planck-Institute for Polymer Research |
| 키워드 |
polyfluorene; oligofluorene; green emission; time resolved spectroscopy
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| E-Mail |
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