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Adding a twist for enhanced performance
Science ( IF 56.9 ) Pub Date : 2017-04-13 , DOI: 10.1126/science.356.6334.149-t
Ian S. Osborne

Organic Electronics The efficiency of organic light-emitting diodes (OLEDs) is fundamentally governed by the ratio of emissive singlet to dark triplet excitons that are formed from spin-polarized electron and hole currents within the material. Typically, this has set an upper limit of 25% internal quantum efficiency for OLEDs. Di et al. manipulated the ratio of spin states through a modification of process chemistry. They introduced a rotation of the molecular structure, which inverted the spin-state energetics and enhanced OLED performance. Science , this issue p. [159][1] [1]: /lookup/doi/10.1126/science.aah4345

中文翻译:

添加扭曲以提高性能

有机电子 有机发光二极管 (OLED) 的效率从根本上取决于材料内自旋极化电子和空穴电流形成的发射单线态与暗三线态激子的比率。通常,这为 OLED 设定了 25% 的内部量子效率的上限。迪等人。通过修改工艺化学来操纵自旋状态的比率。他们引入了分子结构的旋转,从而反转了自旋态能量并增强了 OLED 性能。科学,这个问题 p。[159][1][1]:/lookup/doi/10.1126/science.aah4345
更新日期:2017-04-13
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