Title :
Formation of charge-transfer complex and enlarging the absorption ability of MEH-PPV by Ag-Graphene Nanocomposite
Author :
Chenxin Ran ; Minqiang Wang ; Weiyin Gao ; Zhi Yang ; Xiangyu Zhang
Author_Institution :
Key Lab. of the Minist. of Educ. & Int. Center for Dielectr. Res., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
In this work, we have synthesized Ag-Graphene Nanocompostie (AGN) by a simple method under mild condition. Further, Composites of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) participated by AGN have been studied. The interaction and photoluminescence quenching of MEH-PPV/AGN composites have been observed using UV-visible and fluorescence spectroscopy. Based on UV-visible spectrum of different concentration of AGN blending with MEH-PPV, the absorption range was markedly enlarged, indicating the formation of ground-state charge-transfer complex (CTC). Besides, photoluminescence (PL) spectra of the MEH-PPV/AGN nanocomposite show an efficient PL quenching effect. Both of these results indicate that AGN could apply in photovoltaic device as an acceptor material.
Keywords :
charge exchange; conducting polymers; filled polymers; graphene; ground states; nanocomposites; nanofabrication; photoluminescence; radiation quenching; silver; ultraviolet spectra; visible spectra; AGN blending; Ag-C; Ag-graphene nanocompostie synthesis; MEH-PPV participated composites; MEH-PPV-AGN composites; UV-visible spectroscopy; absorption ability; absorption range; acceptor materials; fluorescence spectroscopy; ground-state charge-transfer complex; mild condition; photoluminescence quenching; photoluminescence quenching effect; photoluminescence spectra; photovoltaic device; poly[2-methoxy-5-(2-ethylhe- xyloxy)-1,4-phenylenevinylene]; Absorption; Graphene; Laboratories; Photoluminescence; Photovoltaic cells; Plastics;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6720824
