Abstract
The Z-scan technique was used to investigate the third-order optical nonlinearity of MEH-PPV and PPV thin-films. The measured magnitude of every x(3) of the two polymers was the order of 10-9 esu and the x(3) of MEH-PPV was larger than that of PPV's. At the same time, the crystal orbital program was used to calculate the electronic structure of two polymers. According to our discussion, the p-(pi) conjugation between the oxygen atom and the PPV main chain in the MEH-PPV should be one of the main reasons for MEH-PPV having the larger x(3) value.
| Original language | English |
|---|---|
| Pages (from-to) | 741-744 |
| Number of pages | 4 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4086 |
| DOIs | |
| State | Published - 2000 |
| Event | 4th International Conference on Thin Film Physics and Applications - Shanghai, China Duration: 8 May 2000 → 11 May 2000 |
Keywords
- Conjugated polymer thin-film
- MEH-PPV
- Optical nonlinearity
- PPV
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