Room‐Temperature Phosphorescence Resonance Energy Transfer for Construction of Near‐Infrared Afterglow Imaging Agents

2020 ◽  
Vol 32 (52) ◽  
pp. 2006752
Author(s):  
Qianxi Dang ◽  
Yuyan Jiang ◽  
Jinfeng Wang ◽  
Jiaqiang Wang ◽  
Qunhua Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Room Temperature ◽  
Near Infrared ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Imaging Agents ◽  
Room Temperature Phosphorescence

scholarly journals Ultralong Organic Room-Temperature Phosphorescence of Electron-donating and Commercially Available Host and Guest Molecules through Efficient Förster Resonance Energy Transfer

2020 ◽  
Author(s):  
Yeling Ning ◽  
Junfang Yang ◽  
Han Si ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Room Temperature ◽  
Radiative Decay ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Vital Role ◽  
Room Temperature Phosphorescence ◽  
New Host ◽  
Diverse Application ◽  
Novel Host

Ultralong organic room-temperature phosphorescence (RTP) materials have attracted great attention recently due to its diverse application potentials. <a>Several ultralong organic RTP materials mimicking the host-guest architecture of inorganic systems have been exploited successfully. However, complicated synthesis and high expenditure are still inevitable in these cases.</a> Herein, we develop a series of novel host–guest organic phosphore systems, in which all chromophores are <a>electron-rich, commercially available and halogen atom free.</a> The maximum phosphorescence efficiency and the longest lifetime reach at 23.6% and 362 ms, respectively. Most importantly, <a>experimental results and theoretical calculation indicate that the host molecules not only play a vital role in providing a rigid environment to suppress non-radiative decay of the guest, but also show a synergistic effect to the guest through</a> Förster energy transfer (FERT). The commercial availability, facile preparation and unique properties also make these new host-guest materials an excellent candidate for anti-counterfeiting devices.

scholarly journals Ultralong Organic Room-Temperature Phosphorescence of Electron-donating and Commercially Available Host and Guest Molecules through Efficient Förster Resonance Energy Transfer

2020 ◽  
Author(s):  
Yeling Ning ◽  
Junfang Yang ◽  
Han Si ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Room Temperature ◽  
Radiative Decay ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Vital Role ◽  
Room Temperature Phosphorescence ◽  
New Host ◽  
Diverse Application ◽  
Novel Host

Ultralong organic room-temperature phosphorescence (RTP) materials have attracted great attention recently due to its diverse application potentials. <a>Several ultralong organic RTP materials mimicking the host-guest architecture of inorganic systems have been exploited successfully. However, complicated synthesis and high expenditure are still inevitable in these cases.</a> Herein, we develop a series of novel host–guest organic phosphore systems, in which all chromophores are <a>electron-rich, commercially available and halogen atom free.</a> The maximum phosphorescence efficiency and the longest lifetime reach at 23.6% and 362 ms, respectively. Most importantly, <a>experimental results and theoretical calculation indicate that the host molecules not only play a vital role in providing a rigid environment to suppress non-radiative decay of the guest, but also show a synergistic effect to the guest through</a> Förster energy transfer (FERT). The commercial availability, facile preparation and unique properties also make these new host-guest materials an excellent candidate for anti-counterfeiting devices.

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