科研之友
微信
新浪微博
Facebook
分享链接
摘要
Photochemical upconversion via triplet-triplet annihilation is a promising technology for improving the efficiency of photovoltaic devices. Previous studies have shown that the efficiency of upconversion depends largely on two rate constants intrinsic to the emitting species. Here, we report that one of these rate constants can be altered by deuteration, leading to enhanced upconversion efficiency. For perylene, deuteration decreases the first order decay rate constant by 16 +/- 9% at 298 K, which increases the linear upconversion response by 45 +/- 21% in the low excitation regime.
- 出版日期2015-8-6
