As the transistor's feature scales down and the integration density of the monolithic circuit increases continuously,the traditional metal interconnects face significant performance limitation to meet the stringen...As the transistor's feature scales down and the integration density of the monolithic circuit increases continuously,the traditional metal interconnects face significant performance limitation to meet the stringent demands of high-speed,low-power and low-latency data transmission for on-and off-chip communications.Optical technology is poised to resolve these problems.Due to the complementary metal-oxide-semiconductor(CMOS) compatible process,silicon photonics is the leading candidate technology.Silicon photonic devices and networks have been improved dramatically in recent years,with a notable increase in bandwidth from the megahertz to the multi-gigahertz regime in just over half a decade.This paper reviews the recent developments in silicon photonics for optical interconnects and summarizes the work of our laboratory in this research field.展开更多
The conductivity of MnCo2O4 spinel,the best route to form the MnCo2O4 protective coating applied by the sol-gel process,and its effect on the intermediate temperature oxidation behavior of SUS 430 alloy,a typical mate...The conductivity of MnCo2O4 spinel,the best route to form the MnCo2O4 protective coating applied by the sol-gel process,and its effect on the intermediate temperature oxidation behavior of SUS 430 alloy,a typical material for the interconnect of solid oxide fuel cell(SOFC),was investigated.The phase structure and surface morphology of the coating and surface oxides were characterized by XRD,SEM and EDS;the "4-probe" method was employed to determine the conductivity of MnCo2O4 spinel and the area specific resistance(ASR)of the surface oxides.The conductivity of MnCo2O4 spinel is excellent,which is 2 orders of magnitude better than that of MnCr2O4 spinel.Long-term thermally cyclic oxidation at 750°C in SOFC cathode atmosphere and ASR measurement have shown that calcined in reducing atmosphere followed by pre-oxidation in the air is the best technique for forming the MnCo2O4 protective coating,which enhances the oxidation resistance,and improves the electrical conductivity and adherence of coated SUS 430 alloy significantly.As a result,the MnCo2O4 spinel is the most potential candidate for SOFC metallic interconnect protective coating application.展开更多
基金supported by the National Natural Science Foundation of China (Grants Nos. 60977043,61007063 and 61228501)National High-Tech Research & Development Program of China ("863" Project)(Grant No. 2012AA012203)+1 种基金Tang Zhongyin Fundthe Scholarship Award for Excellent Doctoral Student granted by the Ministry of Educationof China
文摘As the transistor's feature scales down and the integration density of the monolithic circuit increases continuously,the traditional metal interconnects face significant performance limitation to meet the stringent demands of high-speed,low-power and low-latency data transmission for on-and off-chip communications.Optical technology is poised to resolve these problems.Due to the complementary metal-oxide-semiconductor(CMOS) compatible process,silicon photonics is the leading candidate technology.Silicon photonic devices and networks have been improved dramatically in recent years,with a notable increase in bandwidth from the megahertz to the multi-gigahertz regime in just over half a decade.This paper reviews the recent developments in silicon photonics for optical interconnects and summarizes the work of our laboratory in this research field.
基金supported by National High Technology Research and Development Program of China(2006AA03Z227)National Natural Science Foundation of China(50771048)the Analytical and Testing Center of Huazhong University of Science and Technology for SEM and XRD assistance
文摘The conductivity of MnCo2O4 spinel,the best route to form the MnCo2O4 protective coating applied by the sol-gel process,and its effect on the intermediate temperature oxidation behavior of SUS 430 alloy,a typical material for the interconnect of solid oxide fuel cell(SOFC),was investigated.The phase structure and surface morphology of the coating and surface oxides were characterized by XRD,SEM and EDS;the "4-probe" method was employed to determine the conductivity of MnCo2O4 spinel and the area specific resistance(ASR)of the surface oxides.The conductivity of MnCo2O4 spinel is excellent,which is 2 orders of magnitude better than that of MnCr2O4 spinel.Long-term thermally cyclic oxidation at 750°C in SOFC cathode atmosphere and ASR measurement have shown that calcined in reducing atmosphere followed by pre-oxidation in the air is the best technique for forming the MnCo2O4 protective coating,which enhances the oxidation resistance,and improves the electrical conductivity and adherence of coated SUS 430 alloy significantly.As a result,the MnCo2O4 spinel is the most potential candidate for SOFC metallic interconnect protective coating application.
