Student Paper Award Announced!!

Session Index

Nanophotonic Materials and Devices

Oral session 4- Nanostructures
Friday, Dec. 5, 2014  09:30-11:00
Chair: Wei-Chih Lai
Room: B18
09:30 - 09:45 Paper No.  2014-FRI-S0104-O001
Tien Lin Shen Enhanced light emission of quantum dot luminescence achieved by plasmonic resonance of stacking asymmetric split-ring metamaterials
Tien Lin Shen,Tsung Sheng Kao,Hao Chung Kuo,

Coupling of nanostructured metal with quantum dots have been widely used in nanolasers, bio-sensing devices, and light-emitting diodes (LEDs). We have designed a stacking asymmetric split-ring metamaterial with tunanble resonance, by which the fluorescence of quantum dots can be enhanced by a factor over 2.5.

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09:45 - 10:00 Paper No.  2014-FRI-S0104-O004
Yin-Han Chen Optical Study of Multiple-layered Colloidal Quantum Dots
Yin-Han Chen,Shun-Chieh Hsu,Shih-Li Lin,Chien-Chung Lin,

Abstract: The photoluminescence (PL) with CdTe quantum dots (QDs) −NaCl crystals, mixed with organic film on glass substrate, was measured. This organic film was made by Polydimethylsiloxane (PDMS). Under different overlapping manner, a better PL intensity can be found at multiple layers condition.

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10:00 - 10:15 Paper No.  2014-FRI-S0104-O005
Hau Yu Lan Electronic transport properties of the single ZnO microrod in metal-semiconductor-metal structure
HauYu Lan,ChaoTsung Cheng,HsuCheng Hsu,

Abstract—A single ZnO microrod (MR) is used to construct the metal-semiconductor-metal (MSM) Schottky barrier photodetector, and. also demonstrate tThe transport properties, especially Schottky barrier height, are dominated by the O2 adsorption by based on a physical band model. By calculatingthe value of φ_b2-φ_b1in dark and under UV illumination, we prove that I-V curve under UV illumination will become more symmetric. In addition, we calculate the normalizephotoconductive gain to demonstrate why the ZnO microrod device is better than the ZnO nanowire device.We demonstrate the promising applications of ZnO MR as high performance UV photodetector with high normalized high photoconductive gain.

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10:15 - 10:30 Paper No.  2014-FRI-S0104-O008
Rao Ruei-Huan Electrically Controlled Random Laser by Dielectrophoresis
Yang Yu-Chen,Rao Ruei-Huan,Hung Yu-Chueh,

In this study, we present a tunable random lasing property based on a solution of Rhodamine 6G laser dye, doped with polystyrene spheres. We observed the random lasing spectra controlled by the negative dielectrophoresis effect and the mechanism was discussed.

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10:30 - 10:45 Paper No.  2014-FRI-S0104-O009
Shang-Yang Yu Faraday-Tyndall Effect of Gold-Nanorod Colloid
Shang-Yang Yu,Yun-Ju Chen,Shiao-Wen Tsai,Jiunn-Woei Liaw,

We quantitatively characterized Faraday-Tyndall effect of gold-nanorod colloid by measuring the divergence angles of different-wavelength laser beams passing through different-concentration colloids. The divergence angle at the longitudinal surface plasmon resonance (SPR) of gold nanorod is larger than that at transverse SPR. Additionally, the divergence angle increased as the concentration increases.

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10:45 - 11:00 Paper No.  2014-FRI-S0104-O012
Yi-Lun Chuang Slanted n-ZnO/p-GaN nanorod arrays light-emitting diodes grown by oblique-angle deposition
Yi-Lun Chuang,Yung-Chi Yao,Zu-Po Yang,Fang-Yuh Lo,Jhih-Jhong Siao,Zhong-Han Xie,Tai-Yuan Lin,Jinn-Kong Sheu,Ya-Ju Lee,

The LED architecture composed of the slanted n-ZnO film on p-GaN nanorod arrays exhibits a well-behaving current rectification of junction diode with low turn-on voltage of 4.7 V, and stably emits bluish-white luminescence with dominant peak of 390 nm under the operation of forward injection currents.

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