ORGN 40 |
| Abstract: The emission efficiency is a key factor to evaluate the performance of an organic light emitting diode (OLED). The feature of aggregation-induced emission (AIE) is remarkable that a molecule could emit intense light in its solid state. Nevertheless, there is no general relationship between the structure and the magnitude times of AIE. In this presentation, linear correlation between the times of magnitude of AIE (Fnano/Fsol) and the difference of energy gap (DE) was fortunately established and could be tuned by centers, (correlation factor, r = 0.999), by ends (correlation factor, r = 0.999), and by arms (correlation factor, r = 0.978 and 0.998), respectively. If all compounds were considered for calculation, excellent correlation factor (r = 0.996) could also be obtained. To the best of our knowledge, the finding of this linear relationship between Fnano/Fsol and DE is unprecedented. Description of AIE phenomena is no longer qualitatively, but quantitatively.
Figure 1. The relationship between Fnano/Fsol and differences of energy band gap (DE) Acknowledgement: Ping Lu thanks National Natural Science Foundation of China (20374045) and Natural Science Foundation of Zhejiang Province. |
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Physical Organic Chemistry: Calculations, Mechanisms, Photochemistry, and High-Energy Species
8:00 AM-11:40 AM, Sunday, 10 September 2006 Moscone Center -- Room 133, Oral
Division of Organic Chemistry |
