Effects of asymmetric acceptor and donor positioning in deep blue pyridyl-sulfonyl based TADF emitters

Not the sum of their parts: understanding multi-donor interactions in symmetric and asymmetric TADF emitters

“…[36][37][38][39][40][41][42][43][44] Even a number of white emitters with D-A-D 0 structure have been reported, [45][46][47] although it remains unclear how to correlate the properties of the D-A-D 0 materials from those of the individual D-A and D 0 -A analogues. 48 An early advance in the D-A-D approach was made by Adachi et al, who introduced multiple donors with mutual steric interactions. For instance, 4CzIPN is a high-performance green TADF emitter based on the multi-donor approach which has received sustained research attention.…”

Rational Molecular Design Enables Efficient Blue TADF−OLEDs with Flexible Graphene Substrate

“…Surprisingly, the effect of the other key player in the equation, H SO , has been largely overlooked by the community as it is not as straightforward to investigate or engineer as the types of D and A subunits and their connectivity. [ 4–14 ]…”

“…Surprisingly, the effect of the other key player in the equation, H SO , has been largely overlooked by the community as it is not as straightforward to investigate or engineer as the types of D and A subunits and their connectivity. [4][5][6][7][8][9][10][11][12][13][14] Alongside high efficiencies, one of the unique abilities of OLEDs compared to other lighting sources is the possibility of creating flexible devices; hence, alternative flexible anodes and substrates have attracted significant attention from OLED community in recent years. [15,16] ITO is the most common transparent anode for conventional OLEDs due to its superior optical and electrical properties.…”

Novel D–A chromophores with condensed 1,2,4-triazine system simultaneously display thermally activated delayed fluorescence and crystallization-induced phosphorescence

“…[11][12][13][14][15][16][17][18][19][20] Consequently, a proper choice of D and A moieties as well as their linkage pattern are very important parameters to obtain efficient TADF emitters. 8,[21][22][23] Recently, an alternative approach to achieve small DE ST has appeared, consisting in the use of p-and n-doped polycyclic aromatic hydrocarbons. This leads to so-called multi-resonance TADF (MR-TADF) materials [24][25][26][27][28] which present interesting and useful properties in terms of colour purity and narrowed emission bandwidth, revealing that not only intersegmental but also interatomic D-A interactions can be used to achieve TADF.…”