著者

SEKI Shu ACHARYA Anjali KOIZUMI Yoshiko SAEKI Akinori TAGAWA Seiichi MOCHIDA Kunio

出版者

公益社団法人 日本化学会

雑誌

Chemistry letters (ISSN:03667022)

巻号頁・発行日

vol.34, no.12, pp.1690-1691, 2005-12-05

参考文献数

14

被引用文献数

17

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The photoconductive properties of a series of oligogermanes with dendrite or linear skeleton have been studied by flash photolysis time-resolved conductivity (FP-TRMC) technique. The values of mobility (&Sigma;&mu;) and photocarrier generation yield (&phi;) have been discussed as a function of C<SUB>60</SUB> concentration. The &phi;&Sigma;&mu; values in the order of 10<SUP>&minus;4</SUP> to 10<SUP>&minus;3</SUP> cm<SUP>2</SUP>/Vs were observed for the oligogermanes upon exposure to 532, 355, and 193 nm light. The intrinsic value of mobility in the derivatives was also estimated without contribution from the additives, suggesting the presence of a highly conducting path along the Ge backbones of not only linear oligogermanes but also hyper-branched germanium dendrites.