879713-04-9

Upstream product

• 3335-98-6 1-phenyl-1,3-dihydro-indol-2-one 
• 591-50-4 iodobenzene 
• 109005-10-9 10,15-dihydro-5H-5,10,15-triaza-diindeno[1,2-a;1',2'-c]fluorene 

Relevant academic research and scientific papers

Engineering of hole-selective contact for low temperature-processed carbon counter electrode-based perovskite solar cells

A cost-effective and solution processable hole transport material (HTM), TPDI (5,10,15-triphenyl-5H-diindolo[3,2-a:3′,2′-c]carbazole), was synthesized and explored as a hole selective contact material in low temperature (100 °C) and printable processed carbon counter electrode based perovskite solar cells (PSCs) for the first time. This material demonstrated excellent thermal stability, high hole mobility and appropriate energy level alignment with CH3NH3PbI3 and carbon, which make it a potentially excellent alternative interfacial material for PSCs. By interfacial engineering with doped TPDI, the energy barrier at the CH3NH3PbI3/carbon interface was efficiently eliminated. Dramatically enhanced power conversion efficiency (PCE) of 15.5% was afforded, which is comparable to or even better than that of the reference device with 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) as HTM under equivalent conditions. Besides, TPDI can also function well in its pristine form although the efficiency (13.6%) obtained is slightly lower than that with the device containing doped TPDI as the HTM. Moreover, these newly integrated noble metal-free, vacuum-free and cost effective PSCs exhibited excellent durability during the long term stability measurements for 30 days. The remarkable performance as well as dramatically reduced fabrication cost demonstrated by integrating TPDI as the HTM and cost effective commercial carbon as the cathode revealed their great potential in the scalable and practical application of PSCs.

Design of thermally activated delayed fluorescent sensitizers for high efficiency over 20% and long lifetime in yellow fluorescent organic light-emitting diodes

Yellow thermally activated delayed fluorescence (TADF) materials were synthesized using 2,4,6-triphenylpyrimidine-5-carbonitrile and 4-(3-cyanophenyl)-2,6-diphenylpyrimidine-5-carbonitrile acceptors combined with a very strong donor moiety of 5,10-dipheny

COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF

Provided are the compound represented by Formula 2-K, an organic electric element including a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic device thereof, and by including the compound represented by Formula 1 and compound represented by Formula 2 or the compound represented by Formula 2-K in the organic material layer, the driving voltage of the organic electric element can be lowered, and the luminous efficiency and life time of the organic electric element can be improved.

Octupolar (C3 and S4) Symmetric Cyclized Indole Derivatives: Syntheses, Structures, and NLO Properties

Several cyclized indole derivatives have been synthesized, and their structures been determined. The C3-symmetric single-chiral N-phenyltriindole (Tr-Ph3) crystallized in the P1 space group, and the S4-symmetric saddle-like tetraindo

New interfacial materials for rapid hole-extraction in organic photovoltaic cells

Two new hole-extraction materials, TPDI (5,10,15-triphenyl-5H-diindolo[3,2- a:3′,2′-c]carbazole) and TBDI (5,10,15-tribenzyl-5H-diindolo[3,2-a: 3′,2′-c]carbazole), were synthesized and explored in planar heterojunction organic solar cells (OSCs). The synthesized materials have good transparency in the visible spectrum, high hole mobility, and compatible highest occupied molecular orbital (HOMO) values with the donor material, which make them excellent hole-extraction layers (HELs) for OSCs. The SubPc (subphthalocyanine chloride)/C60 and SubNc (subnaphthalocyanine chloride)/C60 OSCs with a TBDI HEL show impressive 35.9% and 29.1% improvements in power conversion efficiencies compared to reference devices. Their HOMO values were evaluated as 5.2-5.3 eV and hole mobilities were measured as 5.9-6.1 × 10-3 cm2 V-1 s-1 at 0.3 MV cm-1 by the space-charge limited current method.