| 초록 |
Two-photon absorption (TPA) behavior of organic molecules has attracted great interest in recent years. TPA materials with a large cross-section value (δ) can be utilized for various applications such as for two-photon-pumped upconverted lasing, optical power limiting, three-dimensional optical data storage, photodynamic therapy and 3-D lithographic microfabrication. For these applications of TPA chromophore, we have been synthesized four ethynylenephenylene derivatives. Then we measured the TPA activity, optical power limiting property, and fabricated 3-D lithographic micro-structures using newly prepared D-π-D molecules based on ethynylenephenylene as a π-center, where D is a carbazole and triphenylamine units. |
