Photon Upconversion at Crystalline Organic-Organic Heterojunctions
Photon Upconversion at Crystalline Organic-Organic Heterojunctions
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DOI：
10.1002/adma.201601718
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发表时间：
2016-10-12
影响因子：
29.4
通讯作者：
Howard, Ian A.
中科院分区：
文献类型：
--
作者：
Oldenburg, Michael;Turshatov, Andrey;Howard, Ian A.
通过观察敏化-发射异质结构中三重态-三重态湮灭光子的上转换，证明了在表面锚定金属-有机-框架异质结上的三重态转移。实现了1mw cm（-2）以下的上转换阈值。在更广泛的背景下，三重态转移的双电子交换机制表明，在这种溶液加工的晶体异质结构中，异质结的质量足以使电子在层之间移动。
Triplet transfer across a surface-anchored metal-organic-framework heterojunction is demonstrated by the observation of triplet-triplet annihilation photon upconversion in a sensitizer-emitter heterostructure. Upconversion thresholds under 1 mW cm(-2) are achieved. In the broader context, the double-electron-exchange mechanism of triplet transfer indicates that the heterojunction quality is sufficient for electrons to move between layers in this solution-processed crystalline heterostructure.