• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Optical Materials in Defence Systems Technology III; Proceedings of SPIE-The International Society for Optical Engineering; vol.6401 >Photo-physical properties and OPL of some novel thiophenyl Pt(II)-ethynyl derivatives
【24h】

Photo-physical properties and OPL of some novel thiophenyl Pt(II)-ethynyl derivatives

机译：某些新型硫代苯基Pt（II）-乙炔基衍生物的光物理性质和OPL

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The multi-photon absorption and optical power limiting (OPL) properties of two new thiophenyl-containing bis(ethynylaryl)bis(tributylphosphine) platinum(II) complexes (ATP1, ATP2) were studied. Thiophene units were introduced into the structure as an attempt to enhance the OPL properties. The two compounds have the thiophene rings either close to the Pt-atom (ATP1) or at the terminal ends (APT2). The measurement results were compared with those of Pt1 capped with a 2,2-bis(methylol)propionic acid (bis-MPA) dendrimer (Pt1-G1). As for Pt1-G1, both thiophenyl derivatives showed large inter-system crossing capabilities and triplet phosphorescence, indicating that these compounds have potential of enhancing the nonlinear absorption and specifically the OPL properties. The two-photon absorption cross sections of ATP1 and ATP2 was found to be in the same order of magnitude as that of Pt1-G1, i.e. between 10-20 GM, but is slightly larger for ATP1 than for ATP2. The fluorescence decay time of all compounds was found to be very short (sub nanosecond) and with quantum yields in the order of 10~(-3). The multi-photon induced phosphorescence was reduced with decreased pulse repetition frequency (prf) showing a population dependence of the triplet state with prf, correlating with the relatively long phosphorescence decay lifetime around 200 μs. OPL measurements at 532, 550 and 610 nm show that ATP1 has the same clamping level as Pt1-G1 at 532 nm and ATP2 has somewhat weaker OPL response than the other two.
机译：研究了两种新型含硫代苯基的双（乙炔基芳基）双（三丁基膦）铂（II）配合物（ATP1，ATP2）的多光子吸收和光功率限制（OPL）特性。噻吩单元被引入结构中，以试图增强OPL性能。这两种化合物的噻吩环靠近Pt原子（ATP1）或位于末端（APT2）。将测量结果与用2,2-双（羟甲基）丙酸（bis-MPA）树状大分子（Pt1-G1）封端的Pt1进行了比较。至于Pt1-G1，两种硫代苯基衍生物均显示出较大的系统间交叉能力和三线态磷光，表明这些化合物具有增强非线性吸收特别是OPL性能的潜力。发现ATP1和ATP2的双光子吸收截面与Pt1-G1具有相同的数量级，即在10-20GM之间，但是ATP1比ATP2稍大。发现所有化合物的荧光衰减时间都非常短（亚纳秒），量子产率约为10〜（-3）。多光子诱导的磷光随着脉冲重复频率（prf）的降低而降低，显示出三重态与prf的总体依赖性，与大约200μs的较长磷光衰减寿命相关。在532、550和610 nm处的OPL测量表明，ATP1在532 nm处具有与Pt1-G1相同的钳位水平，并且ATP2的OPL响应性比其他两种弱。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号