Balijapalli, Umamahesh; Tang, Xun; Okada, Daichi; Lee, Yi-Ting; Karunathilaka, Buddhika S. B.; Auffray, Morgan; Tumen-Ulzii, Ganbaatar; Tsuchiya, Youichi; Sandanayaka, Atula S. D.; Matsushima, Toshinori; Nakanotani, Hajime; Adachi, Chihaya published the artcile< A 2,6-Dicarbonitrile Diphenyl-1λ5-Phosphinine (DCNP)-A Robust Conjugated Building Block for Multi-Functional Dyes Exhibiting Tunable Amplified Spontaneous Emission>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is dicarbonitrile diphenyl phosphinine dye building block amplified spontaneous emission.
Highly efficient organic light-emitting diodes (OLEDs) with the concurrent achievement of high external electroluminescence quantum efficiency (EQE) and low light amplification thresholds under optical excitation have been considered as a crucial evolution towards the development of high-performance elec. pumped organic semiconductor laser diodes. Herein, a series of 2,6-dicarbonitrile-diphenyl-1λ5-phosphinine (DCNP) based donor (D)-acceptor (A) type dyes with different electron-withdrawing and donating moieties have been designed and characterized. The well-manipulated D-A strength with tunable optical properties guaranteed the low amplified spontaneous emission (ASE) thresholds of below 10μJ cm-2 and furnished a wide-range color-tuning capability in the visible region (485-595 nm). Furthermore, employing a thermally-activated delayed fluorescence (TADF) mol. as a triplet harvester boosted the performance of OLEDs based on mDMCz that exhibits an exceptional EQE value of 18.4% which is an eightfold enhancement as compared with that of standard fluorescence OLEDs. Also, the TADF-assistant fluorescence (TAF) system enables a reduction of the ASE threshold to 3μJ cm-2 and excellent ASE stability. These results provide a rational design strategy to construct color-tunable lasing dyes with reduced ASE thresholds and clarify their potentiality as the fluorescent dopant in the TAF system to utilize up-converted triplet excitons via efficient energy transfer.
Advanced Optical Materials published new progress about Absorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics