Furil-based ionic small molecules for green-emitting non-doped LECs with improved color purity

Abstract

Two novel furil based small molecules FlBzPy and FlThPy were designed and synthesized with simple synthetic procedures for the first time for the LEC application. The optical, thermal, electronic, electroluminescent,...

Tweaking the Optoelectronic Properties of S‐Doped Polycyclic Aromatic Hydrocarbons by Chemical Oxidation

“…Electric measurements of single crystals of MV salts of the oxonium‐ and sulfonium‐type derivatives, exhibited a semiconducting behavior with very high conductivity at room temperature (10 −1 –10 −2 S cm −1 and 10 −2 –10 ‐3 S cm −1 , respectively). Finally, integrating the PTXTX‐based derivatives as emissive materials into LECs led to the first mid‐emitting devices with performances similar to the state‐of‐art small molecule‐based LECs [56,60,65,66,69,70] …”

“…emitting devices with performances similar to the state-of-art small molecule-based LECs. [56,60,65,66,69,70]…”

Bright and Efficient Red Light-Emitting Electrochemical Cells with Nondoped Organic Small Molecules: A New Approach

“…Therefore, we have analyzed the thermal stability of the materials by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). We have noticed excellent thermal stability for the emitter materials, and hence we can draw out the possibility of stability roll-off due to Joule heating …”

Novel Thenil-Based Ionic Small Molecules for Nondoped Light-Emitting Electrochemical Cells for Ultrapure Green Emission

“…To date, thenil-based small molecules have not been used for the fabrication of LEC devices. It has been reported that heteroatoms containing small-molecule LEC devices are comparatively stable from others. , In the synthesis of small molecules for LEC application, researchers are now making use of alkyl chains for easy solution processability and carrier transport. , Moreover, the donor–acceptor systems in small-molecule LECs have widespread acceptance nowadays. Considering all these factors, we are reporting a D–A system comprising thenil as well as pyrene on to which an imidazolium ring is attached, which is tethered with an alkyl chain.…”

“…It has been reported that heteroatoms containing small-molecule LEC devices are comparatively stable from others. 64,65 In the synthesis of small molecules for LEC application, researchers are now making use of alkyl chains for easy solution processability and carrier transport. 66,67 Moreover, the donor−acceptor systems in small-molecule LECs have widespread acceptance nowadays.…”