Photonic Materials & Devices – Page 30

Tracking the Formation of a Break Junction Formed by Electromigration using Transmission Electron Microscopy

Dong J., Parviz B.A., University of Washington, US

Break junctions formed by electromigration have been extensively used in the molecular electronics and electrical characterization of atomic or molecular clusters and biological molecules such as deoxyribonucleic acid (DNA)1. However, to obtain a controllable gap [...]

Molecular Switches of a Self-Assembling Helical Biladienone

Matsui E., Matsuzawa N.N., Moriya S., Sasaki T., Hatazawa T., Kita K., Mizutani T., Sony Corporation, JP

We report a molecular field-effect-transistor employing zinc biladienone (1) as the active element. 1 has not only a rigid disk-shaped core such as porphyrins but also a non-symmetric flexible. The operation of the new transistor, [...]

Nano and Molecular Electronics and Photonics

A Two-Dimensional Numerical Simulation of Organic Light-Emitting Devices

Li Y., Lee B-S, Lee J.W., Chen P., Chen W-H, Lee B-S, Lee J.W., Lu C-S, Chen P., Chen W-H, National Chiao Tung University, TW

Organic light-emitting devices (OLEDs) add a completely new dimension to current display technology [1-3]. OLED displays are thinner, lighter, brighter, and cheaper to manufacture; which also consume less power than the current thin displays do. [...]

Demonstration of Pulsed Silicon Raman Laser

Boyraz O., Jalali B., University of California, Los Angeles, US

Recently, Raman effect in silicon has been pursued for light generation and amplification by utilizing high Raman gain coefficient of silicon. However, free carrier generation due to two photon absorption limited the achieving high Raman [...]

Surface Enhanced Raman Scattering by 2D Photonic Crystals: Enhancement and Reproducibility

Netti M.C., Mahnkopf S., Lincoln J.R., Charlton M.D.B., Cox S.J., Ayliffe P., Zoorob M.E., Wilkinson J.S., Baumberg J.J., Perney N.M.B., Jaiswal S.L., Mesophotonics Ltd., UK

Surface Enhanced Raman Scattering (SERS) is a widely utilised technique to enhance the weak Raman spectrum of molecules, enabling detection and identification of ultralow concentrations of particular species. We show both experimentally and theoretically how [...]

Enhancement of Silicon Photon Emission with Nanostructure Array

Li J.L., Kuan C.H., Peng Y.H., Lo H-C, Chen L-C, National Taiwan University, TW

Initiated by the high photon-emission nature of the porous silicon materials and the light transmission enhancement characteristics of the photonic crystals, the research of silicon Raman scattering of array nanostructures built by the electron beam [...]

UV Silicon Sensor Using Si Nanocrystals

Berman-Mendoza D., Aceves-Mijares M., Berriel-Valdos L., Domínguez-Horna C., Pedraza J., Falcony C., Carranza J., INAOE, MX

After the discovery of photoluminescence of silicon (Si) nanocrystals embedded in silicon dioxide a big effort has been done to understand such emission. However, almost not application of these characteristics can be found until now. [...]

Visible Light Emission from Si-related Nanostructures and the Effect of Ambient Atmosphere on Photoluminescence

Tsai M.-Y., Chi C.-C., Perng T.P., National Tsing Hua University, TW

Two different types of visible light emission were observed from the Si-related nanostructures prepared by vapor condensation in an Ar-5%O2 atmosphere at various working pressures (1, 30, 50, and 100 torr). The specimen prepared at [...]

Preparation of Sb Doped SnO2 SPM Tips and their Use as Transparent Probes in STM Induced Light Hybrid Microscopy

Tätte T., Jacobsen V., Paalo M., Branscheid R., Kreiter M., Mäeorg U., Saal K., Lõhmus A., Kink I., Tartu University, EE

Development of various kinds of sharp needles has been in focus of investigators since their application as sensors in scanning probe microscopy. Although transparent and conductive tips lead to several fascinating applications like STM/SNOM hybrid [...]