Application of V(2)O(5) in thin film microbatteries prepared by RF magnetron sputtering

Conference Name:2nd International Conference on Multi-Functional Materials and Structures. Conference Address: Qingdao, PEOPLES R CHINA. Time:OCT 09-12, 2009.The polycrystalline V(2)O(5) films as the anode in V(2)o(5) /LiPON /LiCoO(2) lithium microbattary were prepared by RF magnetron sputtering system. The V(2)O(5) films' crystal structures, surface morphologies and composition were characterized and analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The microbatteries were fabricated by micro electro-mechanical system (MEMS) technology. The battery active unit area is 500 mu m X 500 mu m, and the thickness of V(2)O(5), LiPON and LiCoO(2) films was estimated to be 200, 610, and 220nm, respectively. The discharge volumetric capacity is between 9.36 mu Ahcm(-2)mu m(-1) and 9.63 mu Ahcm(-2)mu m(-1) after 40 cycles

The structural and electrochemical properties of tin oxide films prepared by RF magnetron sputtering - art no 69842H

Conference Name:6th International Conference on Thin Film Physics and Applications. Conference Address: Shanghai, PEOPLES R CHINA. Time:SEP 25-28, 2007.Tin oxide thin films have been deposited on oxide silicon substrates using a RF magnetron sputtering process with various sputtering power. The crystal structures of the tin oxide thin films were characterized and analyzed by X-ray diffraction. The surface morphology of the films were observed by SEM. The electrochemical properties of the films were also tested by constant current charge and discharge cycle tests. The results of XRD indicate that all the films are crystalline. The results of SEM exhibit that the grain size of surface expands as sputtering power rises

The passive recipient: Neural correlates of negative self‐view in depression

Abstract Introdction Previous studies have argued that people tend to isolate themselves from negative information. This tendency is modulated by the individual's role in social interaction, that is, as an initiative actor (e.g., “I hit Tom”) or a passive recipient (e.g., “Paul hits me”). Depressed patients tend to focus on negative aspects of themselves and cope with situations passively. It is still an open question how the actor/recipient role affects the behavioral and neural responses to self in depression. Methods The present study adopted functional magnetic resonance imaging (fMRI) technology to investigate behavioral and neural responses to self (as an actor/recipient) in depressed patients and the matched healthy controls when attributing negative events. Results Compared with healthy controls, depressed patients showed more self‐attribution for negative events. Depressed patients showed increased brain activity in the dorsal medial prefrontal cortex (dmPFC) subsystem of the default mode network (DMN) when they played recipient role in self‐related negative events. Activity of the dmPFC subsystem was negatively correlated with depressed patients’ self‐attribution for negative events in recipient condition. While decreased brain activity in the medial temporal lobe (MTL) subsystem was observed in depressed patients when they played the actor or recipient role in self‐related negative events. Activity of the MTL subsystem was negatively correlated with depressed patients’ reaction time when they played recipient role in selfrelated negative events. Conclusion These results implicated that depressed patients manifested the negative self‐view. Actor/recipient role affected their activation patterns in the DMN which were different from the healthy controls. The correlation between the abnormal brain activations of the DMN and the behavioral performances might manifest more easily when depressed patients played recipient role in negative events