TY - JOUR
T1 - Effects of connecting ligands on photoinduced electron transfer properties of functionalized self-assembled solid films
AU - Wei, Tian Xin
AU - Shi, Huan Huan
AU - Huang, Chun Hui
AU - Yu, Xiao Feng
AU - Huang, Hui Zhong
AU - Wu, Nian Zu
PY - 2006/6
Y1 - 2006/6
N2 - A strategy for fabricating the functionalized self-assembled films is proposed. Through the comparison of three self-assembled films of 3,4,9,10-perylene tetracarboxylic acid (PTA) with different connecting ligands, i.e. oxalic acid (Ox), succinic acid (Su), or terephthalic acid (Tp), it was found that the optimal system was composed of oxalic acid, Ce4+ and 3,4,9,10-perylene tetracarboxylic acid, which was much better than simple covalent connecting PTA films and the connecting ligands played an important role for the properties of self-assembled (SA) films. All these films were characterized by contact angle, UV spectra, cyclic voltammetry and XPS. The photocurrent generation of the best system were 5 706, 7 345 nA · cm -2, respectively, being among the highest values of dye-sensitized indium tin oxide (ITO) systems. The effects of light intensity, bias voltage, and electron donor on photoinduced electron transfer properties were also studied. The possible mechanism of electron transfer is proposed.
AB - A strategy for fabricating the functionalized self-assembled films is proposed. Through the comparison of three self-assembled films of 3,4,9,10-perylene tetracarboxylic acid (PTA) with different connecting ligands, i.e. oxalic acid (Ox), succinic acid (Su), or terephthalic acid (Tp), it was found that the optimal system was composed of oxalic acid, Ce4+ and 3,4,9,10-perylene tetracarboxylic acid, which was much better than simple covalent connecting PTA films and the connecting ligands played an important role for the properties of self-assembled (SA) films. All these films were characterized by contact angle, UV spectra, cyclic voltammetry and XPS. The photocurrent generation of the best system were 5 706, 7 345 nA · cm -2, respectively, being among the highest values of dye-sensitized indium tin oxide (ITO) systems. The effects of light intensity, bias voltage, and electron donor on photoinduced electron transfer properties were also studied. The possible mechanism of electron transfer is proposed.
KW - Photoconductivity
KW - Photovoltaics
KW - Surface and interface
KW - Thin films
UR - http://www.scopus.com/inward/record.url?scp=33745610036&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33745610036
SN - 1001-4861
VL - 22
SP - 1077
EP - 1084
JO - Chinese Journal of Inorganic Chemistry
JF - Chinese Journal of Inorganic Chemistry
IS - 6
ER -