期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Capacitance-frequency Spectrum Characterization of Organics/Metal Schottky Diodes
1
作者 GUO Wen-ge ZHANG Yan-cao ZHANG Shou-gang 《Semiconductor Photonics and Technology》 CAS 2006年第4期250-256,共7页
An organics/metal Schottky diode is fabricated using 3, 4: 9, 10-perylenetetracarboxylic- dianhydride(PTCDA) thin film sandwiched between ITO and Au by simple thermal evaporation technique. The current-voltage(I-V... An organics/metal Schottky diode is fabricated using 3, 4: 9, 10-perylenetetracarboxylic- dianhydride(PTCDA) thin film sandwiched between ITO and Au by simple thermal evaporation technique. The current-voltage(I-V) characteristics are investigated at room temperature in open air. The results show the rectification ratio is in excess of 100. From the capacitance-frequency(C-f) and capacitance-voltage(C-V) measurements, the Schottky barrier height between 0.2-0.3 eV is obtained according to standard Schottky theory. 展开更多
关键词 Schottky diode Vapour phase deposition Organic thin film Capacitance-frequency
下载PDF
Silver nanoislands on cellulose fibers for chromatographic separation and ultrasensitive detection of small molecules
2
作者 Hyukjin Jung Moonseong Park +1 位作者 Minhee Kang Ki-Hun Jeong 《Light(Science & Applications)》 SCIE EI CAS CSCD 2016年第1期796-802,共7页
High-throughput small-molecule assays play essential roles in biomedical diagnosis,drug discovery,environmental analysis,and physiological function research.Nanoplasmonics holds a great potential for the label-free de... High-throughput small-molecule assays play essential roles in biomedical diagnosis,drug discovery,environmental analysis,and physiological function research.Nanoplasmonics holds a great potential for the label-free detection of small molecules at extremely low concentrations.Here,we report the development of nanoplasmonic paper(NP-paper)for the rapid separation and ultrasensitive detection of mixed small molecules.NP-paper employs nanogap-rich silver nanoislands on cellulose fibers,which were simply fabricated at the wafer level by using low-temperature solid-state dewetting of a thin silver film.The nanoplasmonic detection allows for the scalable quantification and identification of small molecules over broad concentration ranges.Moreover,the combination of chromatographic separation and nanoplasmonic detection allows both the highly sensitive fluorescence detection of mixed small molecules at the attogram level and the label-free detection at the sub-nanogram level based on surface-enhanced Raman scattering.This novel material provides a new diagnostic platform for the high-throughput,low-cost,and label-free screening of mixed small molecules as an alternative to conventional paper chromatography. 展开更多
关键词 nanoplasmonics paper chromatography plasmon-enhanced spectroscopy silver nanoislands small-molecule assay
原文传递
A full vectorial mapping of nanophotonic light fields
3
作者 B.le Feber J.E.Sipe +2 位作者 M.Wulf L.Kuipers N.Rotenberg 《Light(Science & Applications)》 SCIE EI CAS CSCD 2019年第1期961-967,共7页
Light is a union of electric and magnetic fields,and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures.There,complicated electric and magnetic fie... Light is a union of electric and magnetic fields,and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures.There,complicated electric and magnetic fields varying over subwavelength scales are generally present,which results in photonic phenomena such as extraordinary optical momentum,superchiral fields,and a complex spatial evolution of optical singularities.An understanding of such phenomena requires nanoscale measurements of the complete optical field vector.Although the sensitivity of nearfield scanning optical microscopy to the complete electromagnetic field was recently demonstrated,a separation of different components required a priori knowledge of the sample.Here,we introduce a robust algorithm that can disentangle all six electric and magnetic field components from a single near-field measurement without any numerical modeling of the structure.As examples,we unravel the fields of two prototypical nanophotonic structures:a photonic crystal waveguide and a plasmonic nanowire.These results pave the way for new studies of complex photonic phenomena at the nanoscale and for the design of structures that optimize their optical behavior. 展开更多
关键词 WAVEGUIDE FIELDS MAPPING
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部