Luminescent solar concentrators with outstanding optical properties by employment of D–A–D quinoxaline fluorophores
作者:Costanza Papucci、Rima Charaf、Carmen Coppola、Adalgisa Sinicropi、Mariangela di Donato、Maria Taddei、Paolo Foggi、Antonella Battisti、Bastiaan de Jong、Lorenzo Zani、Alessandro Mordini、Andrea Pucci、Massimo Calamante、Gianna Reginato
DOI:10.1039/d1tc02923a
日期:——
use in building-integrated photovoltaics (BIPV). The optimization of LSC performances involves the adjustment of both the fluorophore and the guest polymer matrix. On this account, we investigated a series of high quantum yield, donor–acceptor–donor (D–A–D) photostable fluorophores (DQ1–5), presenting a central quinoxalinic acceptor core, not previously employed in LSCs, and triarylamines or phenothiazine
High-efficiency near-infrared fluorescent organic light-emitting diodes with small efficiency roll-off based on AIE-active phenanthro[9,10-<i>d</i>]imidazole derivatives
作者:Futong Liu、Yongbo Tan、Hui Liu、Xiangyang Tang、Lei Gao、Chunya Du、Jiarui Min、Haixu Jin、Ping Lu
DOI:10.1039/d0tc00102c
日期:——
realization of high-efficiency and low-cost in fluorescent organic light-emitting diodes (OLEDs) is still a formidable challenge in the deep-red (DR)/near-infrared (NIR) region because of the intrinsic limitation of the energy-gap law and fluorescence quenching effect. Herein, three novel donor–acceptor–donor′ (D–A–D′) fluorophores, PIBz-10-PTZ, PIBz-10P-PTZ and PIBz-3-PTZ, by utilizing phenanthro[9,10-d]imidazole
由于能量的固有局限性,在荧光有机发光二极管(OLED)中同时实现高效和低成本仍然是深红(DR)/近红外(NIR)区域中的巨大挑战。隙定律和荧光猝灭作用。这里,三种新的供体-受体-供体'(d-A-d')的荧光团,PIBz -10- PTZ,PIBz-10P-PTZ和PIBz -3- PTZ,通过利用菲并[9,10- d ]咪唑和合成了吩噻嗪作为供体和苯并噻二唑作为受体。由于相邻氢原子之间沿水平轴的单边位阻,PIBz-3-PTZ具有完全平面的构型和完全共轭的结构。PIBz-3-PTZ在纯净薄膜中表现出很强的DR发射和聚集诱导发射(AIE)特性,并具有35%的高光致发光量子产率。未掺杂的OLED实现了2.02%的最大外部量子效率(EQE),发射峰位于672 nm,亮度高达3403 cd m -2。另外,该器件能够在100 cd m -2的高亮度下保持1.69%的EQE ,而低效率滚降为16%,这
Surface Engineering of ITO Substrates to Improve the Memory Performance of an Asymmetric Conjugated Molecule with a Side Chain
作者:Xiang Hou、Xue-Feng Cheng、Xin Xiao、Jing-Hui He、Qing-Feng Xu、Hua Li、Na-Jun Li、Dong-Yun Chen、Jian-Mei Lu
DOI:10.1002/asia.201700706
日期:2017.9.5
design has been demonstrated to boost the performance of organicelectronics effectively. Herein, we introduce surface engineering into organic multilevel RRAMs to enhance their ternary memory performance. A new asymmetric conjugated molecule composed of phenothiazine and malononitrile with a side chain (PTZ-PTZO-CN) was fabricated in an indium tin oxide (ITO)/PTZ-PTZO-CN/Al sandwich-like memory device