Four triarylamine derivatives (XS6–9) containing N,N-dimethylaryl amine units as secondary electron-donating groups are designed and synthesized. These dyes were applied into nanocrystalline TiO2 dye-sensitizedsolarcells through standard operations. For a typical device the maximal monochromatic incident photon-to-current conversion efficiency (IPCE) can reach 93%, with a short-circuit photocurrent
设计并合成了四个含有N,N-二甲基芳基胺单元作为供电子基团的三芳基胺衍生物(XS6 – 9)。通过标准操作将这些染料应用于纳米晶TiO 2染料敏化太阳能电池。对于典型的设备,最大的单色入射光子-电流转换效率(IPCE)可以达到93%,而短路光电流密度(J sc)为10.8 mA cm -2,开路光电压(V oc)690 mV和填充因子(FF)0.61,对应于4.54%的总转换效率。
NOVEL SILICON-TYPE COMPOUND AND AN ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE USING THE SAME
申请人:MOON Hyoung-don
公开号:US20090045734A1
公开(公告)日:2009-02-19
The present invention relates to a silicon compound and an organic electroluminescent device using the same, and more particularly, to a silicon compound which has good blue light emission and enables an organic electroluminescent device to have a low voltage, high brightness and long lifetime, and an organic luminescent display device using the same.
Three organicdyes XS17–19 based on N,N‐dimethylaryl amine and rhodamine‐3‐acetic acid moieties are designed and synthesized. These dyes were applied into nanocrystalline TiO2 dye‐sensitized solarcells through standard operations, showing strong absorption bands at around 320–650 nm, and exhibiting broad IPCE responses. Cellbased on XS17 gave a Jsc of 3.7 mA/cm2, an open circuit voltage of 550 mV
三种有机染料XS17 - 19基于Ñ,Ñ -dimethylaryl胺和罗丹明-3-乙酸部分被设计并合成。这些染料通过标准操作应用于纳米TiO 2染料敏化的纳米晶太阳能电池,在约320–650 nm处显示出很强的吸收带,并表现出广泛的IPCE响应。基于XS17的电池的J sc为3.7 mA / cm 2,开路电压为550 mV,填充系数为0.68,对应于1.4%的总转换效率。较低的总体转换效率是由于IPCE和V oc较低 值,主要来自若丹宁-3-乙酸的受体。
Branched charge-transfer chromophores featuring a 4,5-dicyanoimidazole unit
Six branched and stable push-pull chromophores featuring 4,5-dicyanoimidazole as an acceptor moiety, an N,N-dimethylamino group as a donor and various pi-conjugated linkers are reported. Systematic extension of the pi-linker revealed that the optical and electrochemical properties of A-pi-D chromophores are mainly affected by the nature of the pi-conjugated backbone (length and planarity) as well as by the number of appended donors. (C) 2010 Elsevier Ltd. All rights reserved.