Browsing by Author "Tseng, P. C."

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Antireflection and Light Trapping of Periodic Subwavelength Surface Structures Formed by Colloidal Monolayer Spheres Lithography on Thin Film Solar Cells
(2010)
Tseng, P. C.
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Tsai, M. A.
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Yu, Peichen
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Kuo, H. C.
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光電工程學系
Solar cell efficiency enhancement by gradient periodic TiO(2) nanoislands formed with the facilitation of polystyrene-spheres was studied. The enhancement mechanism was categorized by antireflection and light-trapping and achieves 72% relative increase of short-circuit current density. @ 2010 Optical Society of America
EFFICIENCY ENHANCEMENT IN SINGLE JUNCTION INGAP SOLAR CELLS BY USING SELF-ASSEMBLED NANOSPHERES
(2010)
Chen, H. C.
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Tsai, Y. L.
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Wang, H. W.
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Tsai, M. A.
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Tseng, P. C.
A single-junction InGaP solar cells with polystyrene (PS) nanospheres on the surface has been developed. The self-assembly of PS nanospheres is one of the simplest and the fastest methods with which to build a 20 closely packed periodic structure. Based on the scattering of the PS nanospheres, the light path length can be increased. As compared to the InGaP solar cells without PS nanospheres on the top surface the standard process. An increase short-circuit current form 8.93% to 10.31% is improved when a single-junction InGaP solar cells with PS nanospheres. The conversion efficiency measured can also be improved from 8.79% to 9.71%. The single-junction InGaP solar cell with PS nanospheres was achieved.
Efficiency Enhancement in Single-Junction InGaP Solar Cells by Using Self-Assembled Nanospheres
(2011-06-01)
Chen, H. C.
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Lin, C. C.
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Wang, H. W.
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Tsai, M. A.
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Tseng, P. C.
A single-junction InGaP solar cell with polystyrene (PS) nanospheres on the surface has been developed. The self-assembly of PS nanospheres is one of the simplest and the fastest methods with which to build a 2-D closely packed periodic structure. Due to the scattering of the PS nanospheres, the light path length can be increased when compared to the InGaP solar cells without PS nanospheres on the top. An increase short-circuit current from 8.93 to 10.31 mA is improved when a single-junction InGaP solar cell is coated with PS nanospheres. The conversion efficiency measured can also be improved from 8.79% to 9.71%. The single-junction InGaP solar cell with PS nanospheres was achieved.
Efficiency Enhancement InGaP/GaAs Dual-junction Solar Cell by Broad-band and Omnidirectional Antireflection Nanorod Arrays
(2010)
Tsai, M. A.
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Tseng, P. C.
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Yu, Peichen
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Chiu, C. H.
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Kuo, H. C.
10% efficiency enhancement of the solar cell by Broad-band and Omnidirectional Antireflection Nanorod Arrays was demonstrated. The enhanced efficiency attributed to increased light entry and optical path in both the top cell and bottom cell. @2008 Optical Society of America
EFFICIENCY ENHANCEMENT InGaP/GaAs DUAL-JUNCTION SOLAR CELL WITH SUB-WAVELENGTH ANTIREFLECTION NANOROD ARRAYS
(2010)
Wang, H. W.
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Tsai, M. A.
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Chen, H. C.
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Tsai, Y. L.
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Tseng, P. C.
The enhanced conversion efficiency of the InGaP/GaAs dual-junction solar cell was demonstrated antireflection nanorod arrays. After self-assembled Ni clusters, the nanorod arrays were fabricated by inductively-coupled-plasma reactive ion etching. The conversion efficiency were measured under one-sun air mass 1.5 global illuminations at room temperature. The short current of the nanorod arrays cell was enhanced 10.0% and the efficiency was enhanced 10.8%. We were also studied the light absorption efficiencies of the top InGaP and bottom GaAs cells under the influence of nanorod arrays. Surface nanorod arrays were not only as antireflection layers but also scattering sources. The nanorod arrays structure can be significant improved the maximum conversion efficiency.
Enhanced Omnidirectional Photon Coupling via Quasi-Periodic Patterning of Indium-Tin-Oxide for Organic Thin-Film Solar Cells
(2011-01-01)
Tseng, P. C.
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Hsu, M. H.
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Chen, H. C.
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Tsai, M. A.
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Yu, Peichen
Enhanced optical coupling with respect to all incident angles via an indium tin oxide quasi-periodic structure (ITO-QPS) for organic thin-film solar cells was demonstrated. The cell @2010 Optical Society of America
LARGE-SCALE AND ENHANCED EFFICIENCY C-SI SOLAR CELL WITH MOTH-EYE-LIKE BY USING SELF-ASSEMBLED LITHOGRAPHY
(2010)
Tsai, M. A.
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Chen, H. C.
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Wang, H. W.
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Tsai, Y. L.
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Tseng, P. C.
We demonstrated the Si solar cell with ladder-shaped nanorod array, fabricated by combined the self-assembled lithography and reactive-ion etching technique. The measurement of angular reflective spectrums of the solar cell with ladder-shaped nanorod array using an integration sphere remained lower at broadband spectra and large angle of incident compared to the solar cell with micro-textured surface. The I-V measurement shown the current density and conversion efficiency could be improved by the ladder-shaped nanorod array. The enhancement conversion efficiency approached to 34.54%.
The effects of PE additive on the performance of polystyrene vacuum insulation panels
(2009-06-01)
Tseng, P. C.
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Chu, H. S.
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機械工程學系
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Department of Mechanical Engineering
The effects of adding polyethylene (PE) in polystyrene (PS) foaming material on the cell structure and the heat transfer of vacuum insulation panels (VIPs) are examined in this study. Several parameters are proposed to describe the foam structure, namely, the broken cell ratio, the average cell size and the solid volume fraction. Adding 2% PE was effective in altering the cell structure and reducing the heat transfer, while adding 5% PE did not improve the performance further. The lowest thermal conductivity found in this study is 4.4 mW m(-1) K(-1), which is among the best published performances of VIP. (C) 2009 Elsevier Ltd. All rights reserved.