Dpto. Química Física, Universidad del País Vasco (UPV/EHU), Aptdo. 644, 48080, Bilbao, Spain.
Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
Chemistry. 2019 Nov 22;25(65):14959-14971. doi: 10.1002/chem.201903804. Epub 2019 Oct 25.
The development of efficient and stable red and near-IR emitting materials under hard radiation doses and/or prolonged times is a sought-after task due to their widespread applications in optoelectronics and biophotonics. To this aim, novel symmetric all-BODIPY-triads, -pentads, and -hexads have been designed and synthesized as light-harvesting arrays. These photonic materials are spectrally active in the 655-730 nm region and display high molar absorption across UV-visible region. Furthermore, they provide, to the best of our knowledge, the highest lasing efficiency (up to 68 %) and the highest photostability (tolerance >1300 GJ mol ) in the near-IR spectral region ever recorded under drastic pumping conditions. Additionally, the modular synthetic strategy to access the cassettes allows the systematic study of their photonic behavior related to structural factors. Collectively, the outstanding behavior of these multichromophoric photonic materials provides the keystone for engineering multifunctional systems to expedite the next generation of effective red optical materials.
由于它们在光电子学和生物光子学中的广泛应用，开发在高辐射剂量和/或长时间下具有高效和稳定的红色和近红外发射材料是一项备受关注的任务。为此，设计并合成了新型对称的全 BODIPY-三联体、-五联体和-六联体作为光收集阵列。这些光子材料在 655-730nm 区域具有光谱活性，并在紫外可见区域显示出高摩尔吸光度。此外，据我们所知，在苛刻的泵浦条件下，它们在近红外光谱区域提供了迄今为止记录的最高激光效率（高达 68%）和最高光稳定性（耐受度>1300GJ/mol）。此外，访问这些盒式磁带的模块化合成策略允许对与结构因素相关的光子行为进行系统研究。总的来说，这些多色光子材料的卓越性能为工程多功能系统提供了基石，以加速下一代有效的红色光学材料的发展。
