TY - JOUR
T1 - Dual-Emissive Langmuir-Blodgett Films of a 9,9-Bis(4-ethynylphenyl)fluorene Derivative of Gold(I) and Some Europium-Substituted Polyoxometalates
T2 - Preparation, Characterization and Photoelectric Properties
AU - Fu, Qiao Min
AU - Fu, Hui
AU - Hu, Lei
AU - Liu, Li
AU - Liu, Shi Zhong
AU - Du, Zu Liang
AU - WONG, Wai Yeung
N1 - Funding Information:
Acknowledgments Li Liu acknowledges the financial support from National Natural Science Foundation of China (20671033, 21071049) and Natural Science Foundation of Hubei Province of China (2010CDB04702). This work was also supported by the University Grants Committee Areas of Excellence Scheme (AoE/P-03/08), the Hong Kong Research Grants Council (HKBU202709 and HKUST2/ CRF/10) and Hong Kong Baptist University (FRG2/09-10/091).
PY - 2012/1
Y1 - 2012/1
N2 - A new family of organometallic/inorganic composite Langmuir-Blodgett (LB) films consisting of the rigid-rod dinuclear gold(I) complex coordinated with 9,9-bis(4-ethynylphenyl)fluorene (denoted as Au-DPF) as the π-conjugated organometallic molecule coupled with some europium-substituted polyoxometalates (POM; POM = Na 9EuW 10O 36, K 13[Eu(SiW 11O 39) 2] and K 5[Eu(SiW 11O 39)(H 2O) 2]) as the inorganic component were prepared and characterized by π-A isotherms, UV-vis absorption and photoluminescence spectra, atomic force microscopy imaging, scanning tunneling microscopy, and surface photo-voltage spectroscopy. Luminescence spectra of the prepared hybrid LB films show that the near-white emission spectra can be obtained due to the dual-emissive nature of the mixed Au-DPF/POM blends, and POM can facilitate broad aggregate emission bands. These Au-diyne-based LB films displayed interesting electric conductivity behavior. Among them, Au-DPF/K 13[Eu(SiW 11O 39) 2] 13-layer film showed a good electrical response, with the tunneling current up to ±100 nA when the voltage was monitored between -1. 3 and 1. 8 V. The photovoltage response of Au-DPF/EuW 22 amounts to 1. 5 μV.
AB - A new family of organometallic/inorganic composite Langmuir-Blodgett (LB) films consisting of the rigid-rod dinuclear gold(I) complex coordinated with 9,9-bis(4-ethynylphenyl)fluorene (denoted as Au-DPF) as the π-conjugated organometallic molecule coupled with some europium-substituted polyoxometalates (POM; POM = Na 9EuW 10O 36, K 13[Eu(SiW 11O 39) 2] and K 5[Eu(SiW 11O 39)(H 2O) 2]) as the inorganic component were prepared and characterized by π-A isotherms, UV-vis absorption and photoluminescence spectra, atomic force microscopy imaging, scanning tunneling microscopy, and surface photo-voltage spectroscopy. Luminescence spectra of the prepared hybrid LB films show that the near-white emission spectra can be obtained due to the dual-emissive nature of the mixed Au-DPF/POM blends, and POM can facilitate broad aggregate emission bands. These Au-diyne-based LB films displayed interesting electric conductivity behavior. Among them, Au-DPF/K 13[Eu(SiW 11O 39) 2] 13-layer film showed a good electrical response, with the tunneling current up to ±100 nA when the voltage was monitored between -1. 3 and 1. 8 V. The photovoltage response of Au-DPF/EuW 22 amounts to 1. 5 μV.
KW - Gold acetylide
KW - LB Film
KW - Photoelectric property
KW - Polyoxometalate
KW - Preparation
UR - http://www.scopus.com/inward/record.url?scp=84856214018&partnerID=8YFLogxK
U2 - 10.1007/s10904-011-9579-2
DO - 10.1007/s10904-011-9579-2
M3 - Journal article
AN - SCOPUS:84856214018
SN - 1574-1443
VL - 22
SP - 97
EP - 104
JO - Journal of Inorganic and Organometallic Polymers and Materials
JF - Journal of Inorganic and Organometallic Polymers and Materials
IS - 1
ER -