Dye-sensitized solar cells based on nanocrystalline TiO2 sensitized with a novel pyridylquinoline ruthenium(II) complex
Dye-sensitized solar cells based on nanocrystalline TiO2 sensitized with a novel pyridylquinoline ruthenium(II) complex
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DOI：
10.1039/b202975h
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发表时间：
2002-07
影响因子：
3.3
通讯作者：
M. Yanagida;A. Islam;Y. Tachibana;G. Fujihashi;R. Katoh;H. Sugihara;H. Arakawa
中科院分区：
文献类型：
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作者：
M. Yanagida;A. Islam;Y. Tachibana;G. Fujihashi;R. Katoh;H. Sugihara;H. Arakawa
2n[cis-Ru(H2−ndcpq)2(Ncs)2]{n=0或1；新合成了H2dcpq=4-carboxy-2-[2′-(4′-carboxypyridyl)]quinoline}，并与[NBu4]2n[cis-Ru(H2−ndcbiq)2(Ncs)2](H2dcbiq=4，4‘-二羧基-2，2’-联喹啉)和[nBu4]2n[cis-Ru(H2−ndcbpy)2(Ncs)2](H2 dcbpy=4，4‘-二羧基-2，2’-联吡啶)的光物理和光伏性能进行了表征和比较。顺式[Ru(H_2dcpq)_2(Ncs)_2]的最低激发态氧化电位为−0.72V，比顺式[Ru(H_2dcbpy)_2(Ncs)_2]更正，与文献报道的二氧化钛导带边值非常接近。[nBu4]2N[cis-Ru(H2−ndcpq)2(Ncs)2]实现了纳米二氧化钛薄膜在较宽的可见光和近红外波长范围内的高效敏化，在模拟AM1.5太阳辐射(100 mW cm−2)下产生了13.2 mA cm−2的大短路光电流和0.53V的开路电压，太阳能转换效率为5.0%。
[NBu4]2n[cis-Ru(H2−ndcpq)2(NCS)2] {n = 0 or 1; H2dcpq = 4-carboxy-2-[2′-(4′-carboxypyridyl)]quinoline} were newly synthesized, and their photophysical and photovoltaic properties were characterized and compared with those of [NBu4]2n[cis-Ru(H2−ndcbiq)2(NCS)2] (H2dcbiq = 4,4′-dicarboxy-2,2′-biquinoline) and [NBu4]2n[cis-Ru(H2−ndcbpy)2(NCS)2] (H2dcbpy = 4,4′-dicarboxy-2,2′-bipyridine). The lowest excited-state oxidation potential of cis-[Ru(H2dcpq)2(NCS)2] was estimated to be −0.72 V vs. SCE, which was more positive than that of cis-[Ru(H2dcbpy)2(NCS)2], and very close to reported values of the conduction band edge of TiO2. [NBu4]2n[cis-Ru(H2−ndcpq)2(NCS)2] achieved efficient sensitization of nanocrystalline TiO2 films over a wide visible and near-infrared wavelength range, generating a large short-circuit photocurrent of 13.2 mA cm−2 and an open-circuit voltage of 0.53 V with a solar energy conversion efficiency of 5.0% under simulated AM 1.5 solar irradiation (100 mW cm−2).