Sensitizing low-energy light with organic charge-transfer complexes bearing modifiable states of matter: towards liquefied metal-free TTA-UC system

拟议的研究重点是开发一种新的有机光敏剂系列，其具有可改变物质状态的 BPEA-TCNB CT 复合物。 2022 财年设定的中期目标包括 1) 使用准备好的 CT 复合物和不同的三联体受体制作样品，2) 进行 TTA-UC 测量。这些预定的任务都完成得非常顺利。使用基于苝的三重态受体的样品观察到了阳性结果，但由于 BPEA-TCNB CT 复合物和三重态受体之间接触的固体表面较差，即使在高激光功率下，检测到的信号也出乎意料地微弱。需要对样品制备进行进一步修改，但是，不幸的是，由于我的雇佣合同到期，该项目不得不缩短。

The proposed research focuses on developing a new family of organic photosensitizers with BPEA-TCNB CT complexes bearing modifiable states of matter. The interim goals set for FY2022 include 1) making samples with the prepared CT complexes and different triplet acceptors and 2) performing the TTA-UC measurements. Those scheduled tasks were completed very smoothly. Positive results were observed with the samples utilizing perylene-based triplet acceptors, but the detected signals were unexpectedly weak even with high laser power due to poor solid surfaces in contact between the BPEA-TCNB CT complexes and the triplet acceptors. Further modifications in sample preparations would be required, however, this project unfortunately has to cut short due to the expiration of my employment contract.