Photoreactivity of As-Fabricated Au Clusters at the Single-Cluster Level

被引:31
作者
Sakamoto, Masanori [1 ]
Tachikawa, Takashi [1 ]
Fujitsuka, Mamoru [1 ]
Majima, Tetsuro [1 ]
机构
[1] Osaka Univ, ISIR, Osaka 5670047, Japan
关键词
GOLD CLUSTERS; NANOCLUSTERS; FLUOROPHORES; REACTIVITY; SIZE; O-2;
D O I
10.1021/ja8043147
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this study, we have photochemically fabricated a gold cluster (Au-n), composed of several tens of atoms, in a polymer matrix and concurrently investigated the photoreactivity of newly formed clusters at the single-cluster level. Our attempt enabled the in situ observation of individual ligand-free Au-n clusters with a resolution of the number of atoms. In addition, the procedure revealed the photoinduced reaction of excited Au-n clusters with O-2 for the first time.
引用
收藏
页码:6 / +
页数:3
相关论文
共 25 条
[1]   Gold nanoelectrodes of varied size: Transition to molecule-like charging [J].
Chen, SW ;
Ingram, RS ;
Hostetler, MJ ;
Pietron, JJ ;
Murray, RW ;
Schaaff, TG ;
Khoury, JT ;
Alvarez, MM ;
Whetten, RL .
SCIENCE, 1998, 280 (5372) :2098-2101
[2]   THE PHYSICS OF SIMPLE METAL-CLUSTERS - EXPERIMENTAL ASPECTS AND SIMPLE-MODELS [J].
DEHEER, WA .
REVIEWS OF MODERN PHYSICS, 1993, 65 (03) :611-676
[3]   When gold is not noble: Catalysis by nanoparticles [J].
Haruta, A .
CHEMICAL RECORD, 2003, 3 (02) :75-87
[4]   Thermosensitive gold nanoclusters stabilized by well-defined vinyl ether star polymers: Reusable and durable catalysts for aerobic alcohol oxidation [J].
Kanaoka, Shokyoku ;
Yagi, Naoto ;
Fukuyama, Yukiko ;
Aoshima, Sadahito ;
Tsunoyama, Hironori ;
Tsukuda, Tatsuya ;
Sakurai, Hidehiro .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (40) :12060-+
[5]   Single-molecule optoelectronics [J].
Lee, TH ;
Gonzalez, JI ;
Zheng, J ;
Dickson, RM .
ACCOUNTS OF CHEMICAL RESEARCH, 2005, 38 (07) :534-541
[6]   Facile photochemical synthesis of unprotected aqueous gold nanoparticles [J].
McGilvray, Katherine L. ;
Decan, Matthew R. ;
Wang, Dashan ;
Scaiano, Juan C. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (50) :15980-15981
[7]  
Montalti M., 2006, Handbook of Photochemistry
[8]   Theoretical investigation of the hetero-junction effect in PVP-stabilized Au13 clusters.: The role of PVP in their catalytic activities [J].
Okumura, Mitsutaka ;
Kitagawa, Yasutaka ;
Kawakami, Takashi ;
Haruta, Masatake .
CHEMICAL PHYSICS LETTERS, 2008, 459 (1-6) :133-136
[9]   Quantum-sized gold clusters as efficient two-photon absorbers [J].
Ramakrishna, Guda ;
Varnavski, Oleg ;
Kim, Junhyung ;
Lee, Dongil ;
Goodson, Theodore .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (15) :5032-+
[10]   Oligonucleotide-stabilized Ag nanocluster fluorophores [J].
Richards, Chris I. ;
Choi, Sungmoon ;
Hsiang, Jung-Cheng ;
Antoku, Yasuko ;
Vosch, Tom ;
Bongiorno, Angelo ;
Tzeng, Yih-Ling ;
Dickson, Robert M. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (15) :5038-+