%0 Journal Article
%T A Sensor-on-Chip Based on Second-Order Optical Effect of ZnO Nanowires<br>
%A ZHU Jing
%A ZHU Guang-Ping
%A LU Chang-Gui
%A XU Chun-Xiang
%A CUI Yi-Ping
%A <br>
%J 中国物理快报
%D 2009
%I 
%X Strong second-order nonlinear effect of ZnO nanowires on a silicon wafer are demonstrated by using the hyper-Rayleigh scattering (HRS) measurement. The large nonlinear effect can be attributed to the following two factors: (1) the large total dipole moment caused by high surface defect density and electrostatic potential gradient, (2) coherent effect due to high crystal quality of single nanowire. Moreover, the second-order nonlinear effect is found to become weaker when the chip is put into organic solvent due to modification of surface defect caused by organic molecules. The variation of second-order signal in the solvent indicated the potential applications of ZnO nanowires as a sensor-on-chip (SoC).
%K 42
%K 65
%K -k
%K 42
%K 79
%K Nq<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=141DE65903A58F921403FE3267F5098D&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0