Student Paper Award Announced!!

Session Index

Photovoltaic Technology

Poster Session 2
Thursday, Dec. 4, 2014  16:40-17:50
Paper No.  2014-Thu-P0902-P001
Yi-Fong Guan Photovoltaic property of BFO multiferroic ceramics doped by Co
Yi-Fong Guan,

In this study, 5% and 10% Co-doped BFO multiferroic ceramics were synthesized by solid state reaction (SSR) method with various sintering temperature. They present single phase in XRD measurements. The average grain size of Co-doped BFO grows significantly with increasing sintering temperature as observed by SEM. Increasing Co content of BFO makes the grains to a rectangle shape and enhances the ferromagnetic behavior at room temperature.

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Paper No.  2014-Thu-P0902-P002
Lung-Chie Chen Study on dye-sensitized solar cells with perovskite active layer
Kuan-Lin Lee,Yi-He Chen,Lung-Chie Chen,Jian-Hong Chen,Cheng-Han Ho,

Abstract-In recent years, the perovskite solar cells is a advancing photovoltaic devices. The power conversion efficiency of perovskite solar cells has been gradually increased. This paper discusses DSSCs with perovskite and photovoltaic performances. The perovskite CH3NH3PbI3 is deposited on the TiO2 layer of DSSCs via spin coating. Using the fabrication of perovskite solar cells increases power conversion efficiency.

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Paper No.  2014-Thu-P0902-P003
Siang Yi Hu Optimization of sub-wavelength nanostructure on the performance of silicon solar cells
Siang Yi Hu,Fang-I Lai,Ming-Yang Hsieh,Shou-Yi Kuo,

In this study, a sub-wavelength structure (SWS) on silicon(Si) solar cells using the rigorous coupled-wave analysis(RCWA) method is presented. Various SWS of different shapes and period are discussed in detail. The optimized reflectance is under 1% during 500-600nm incident wavelength and enhancement is 47%.

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Paper No.  2014-Thu-P0902-P004
HONG-SYUAN LIN Study of Negative Bias Effect on Pulse Electrochemical Deposition of TiO2 on ZnO for Dye-sensitized Solar Cells

We studied the effect of negative bias on deposition of TiO2 on ZnO in the electrochemical deposition process for the preparation of anodes of dye-sensitized solar cells. We found that oxygen vacancies at ZnO/TiO2 interface, thickness of TiO2 layer, and Ti4+/Ti3+ ratio are 3 major factors affecting the performance.

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Paper No.  2014-Thu-P0902-P005
Chih-Hung Tsai Graphene Nanosheets-Platinum Stacked Counter Electrodes for Dye-Sensitized Solar Cells
Chih-Hung Tsai,Chih-Han Chen,Yu-Chen Hsiao,Ping-Yuan Chuang,Wei-Chien Wu,Wei-Chih Huang,Po-Hsi Fei,

In this study, graphene nanosheets-Pt stacked counter electrodes were characterized and used to fabricate DSSCs. The Jsc, Voc, and fill factor of the DSSC based on conventional Pt counter electrode are 14.56 mA/cm2, 0.70 V and 0.70, respectively, yielding an overall efficiency of 7.13%. The DSSC based on graphene nanosheets-Pt stacked counter electrodes showed an enhanced efficiency of 8.16%. Power conversion efficiency of the DSSC was enhanced by ~14% with using the graphene nanosheets-Pt stacked counter electrodes.

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Paper No.  2014-Thu-P0902-P006
Yen-Ju Lin Advantages of Coupling Quantum Dot Structure with GaAsSb as interlayer in IBSC Design
Yen-Ju Lin,David Jui-Yang Feng,Tzy-Rong Lin,Mao-Kuen Kuo,

We analysis the coupling QD structure advantages in forming intermediate band. In structure design, we convinced that the coupling QD structure will help to broaden the bandwidth of intermediate band. The results revealed that the GaAsSb thickness equal to 5.5 nm with Sb concentration 0.12 will help in IBSC design.

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Paper No.  2014-Thu-P0902-P007
Thiyagu Subramani Silicon nanohole inorganic/organic hybrid heterojunction solar cells
Thiyagu Subramani,Chen-Chih Hsueh,Chien-Ting Liu,Hong-Jhang Syu,Song-Ting Yang,Ching-Fuh Lin,

In this work, high density silicon nanohole (SiNH) arrays were fabricated on n-type wafer by using simple solution process two-step metal-assisted chemical etching method. SiNHs exhibit very low reflectance from range of wavelength 300 to 1100 nm irrespective of the angle of incidence. Si/PEDOT:PSS hybrid solar cells exhibit high Jsc of 36.80 mA/cm2, voc of 0.52V, FF of 66.50%, and thus power conversion efficiency (PCE) of 12.72%.

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Paper No.  2014-Thu-P0902-P008
Chia-Hsin Cheng The selection of buffer/window layers for tin sulfide solar cells by simulation
Chia-Hsin Cheng,Zih-Yang Chen,Ming-Jer Jeng,

Recently, tin sulfide (SnS) has been demonstrated to be a potential photovoltaic absorber for the future thin film solar cells due to high absorption coefficient (~105 cm-1) and the bandgap of 1.3eV. In order to study the solar performance, the buffer layer of CdS and ZnS and the window layer of FTO, ITO and ZnO for using in SnS thin film solar cells are simulated by the AMPS-1D simulation software in this work. It is observed that the SnS solar cells with a ZnO/ZnS/SnS layer structure exhibit higher solar efficiency than that with a ZnO/CdS/SnS layer structure, owing to less buffer layer absorption and good conduction band alignment. In addition, the SnS solar cells with the layer structures of FTO/SnS, ZnO/SnS and ZnO/ZnS/SnS demonstrate higher efficiency, open circuit voltage and short circuit current than that with the structure of ITO/SnS and ZnO/CdS/SnS.

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Paper No.  2014-Thu-P0902-P009
Jing-Han Chou Flexible Dye-Sensitized Solar Cells with Quasi-Solid Electrolyte
Jian-Yang Lin,Jing-Han Chou,

In this work, Electrolyte mixed with PVDF-HFP and P25 particle was used as quasi-solid electrolyte for the flexible dye-sensitized solar cells (DSSCs). The effects of quasi-solid electrolyte on the performance of the DSSCs have been investigated in this work. The TiO2 particles added in the quasi-solid electrolyte can improve the photovoltaic conversion efficiency of the DSSCs. The flexible DSSCs with quasi-solid electrolyte have achieved photovoltaic conversion efficiency as high as 1.17%.

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Paper No.  2014-Thu-P0902-P010
Ming-Hsien Li Nickel Oxide Compact Layer by RF sputtering in Mesoscopic NiO/CH3NH3PbI3 Perovskite Heterojunction Solar Cells
Ming-Hsien Li,Kuo-Chin Wang,Po-Shen Shen,Shi Chen,Ming-Wei Lin,Peter Chen,Tzung-Fang Guo,

We introduce the use of low temperature sputtered NiOx thin film and solution-processed NiOx as an effective electron blocking layer for mesoscopic NiO/CH3NH3PbI3 perovskite solar cells. The cell efficiency has been improved from 9.511 to 10.7% for devices using NiOx fabricated under pure argon atmosphere. With adequate doping under 10% oxygen flow ratio, we achieved power conversion efficiency of 11.6%.

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Paper No.  2014-Thu-P0902-P011
Ming Yi Lin Analysis of optical absorption effect in polymer solar cell
Ming Yi Lin,Chia-Yu Shen,Yih Chih Tseng,Yi Jiun Chen,Yu Ling Kang,Hoang Yan Lin,

The performances of P3HT:PC61BM solar cells are studied experimentally and theoretically. The absorption spectra for those with different thicknesses are simulated by RCWA method and compared with the experimental results. The power conversion efficiency of the polymer solar cell can reach 3.34%.

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Paper No.  2014-Thu-P0902-P012
Wei Jhen Chen Optical measurement monitoring photovoltaic module encapsulation process
ShangYeh Wen,WeiJhen Chen,ChengYu Peng,JenLoong Hwang,

The optical constants of the measurement conditions for different packages of the ethylene-vinyl acetate, in a non-destructive way to monitor the reliability of photovoltaic module encapsulation.

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Paper No.  2014-Thu-P0902-P013
Zih-Rong Chen Planar solar concentrator
Zih-Rong Chen,Jyh-Rou Sze,An-Chi Wei,

A planar solar concentrator consisting of one planar substrate is proposed. The grooves scratched on the bottom side of this concentrator reflect the incident sunlight to both side walls of the concentrator. To evaluate the performance of the proposed planar concentrator, the optical properties of concentrator are simulated and analyzed.

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Paper No.  2014-Thu-P0902-P014
Jyun-Hong Li Study on transparent electrodes for solar cells
Jyun-Hong Li,An-Chi Wei,

A method based on the transmission line model is applied to investigate the contact resistivity of the electrode in the solar cell herein. Meanwhile, an additional pad between the transparent electrode, such as graphene, and the substrate is proposed to reduce the contact resistance and then enhance the efficiency.

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Paper No.  2014-Thu-P0902-P015
ChaoKai Chang Electrochemical Impedance Study of Titanium Oxide Anodes of the Dye-Sensitized Solar Cells
ChaoKai Chang,ChaoKai Chang,

From EIS measurement, we identify 2 distinct synchronized frequencies corresponding to 2 charge transfer mechanisms in the dye-sensitized solar cells, by varying the anode thickness and the applied voltage. The identification is critical in confirmation of corresponding mechanisms as a result of any improvement attempt of the solar cells.

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Paper No.  2014-Thu-P0902-P016
Pin-Yao Chen Synthesis and Opto-electrical Investigation of Linear and Hyperbranched Polythiophene Derivatives Containing Diketopyrrolopyrroles as Linking Groups
Chia-Hao Hsieh,Pin-Yao Chen,Sheng-Hsiung Yang,

Linear and hyperbranched polythiophene derivatives containing diketopyrrolopyrrole (DPP) as linking groups were synthesized. Thermal stabilities of polymers were enhanced by introducing DPP groups, while their energy levels were also modified. All polymers were used as active layers for fabrication of inverted solar cell devices.

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Paper No.  2014-Thu-P0902-P017
Yean-San Long A Study of Capacitance Effect in DSC from High to Low Level Lighting by Real-Time One-Sweep Method
Yean-San Long,Yean-San Long,

To accurate characterization of DSC requires different level lighting consideration on each very slow temporal response. Good accuracy data showed measurement shall be real time removing capacitance effect with a Real-Time One-Sweep Method (RTOSM), which is useful to measuring cell more accurately and rapidly when evaluating performance.

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Paper No.  2014-Thu-P0902-P018
Han-Chang Liu Enhanced module performance-PID free module
Bo-Han Wu,Han-Chang Liu,Wen-Kuei Lee,Chung-Teng Huang,

Potential Induced Degradation (PID) is a serious PV reliability issue it caused the PV module power loss and lifetime degradation. In this paper a new module structure design can help to achieve high reliability and without PID issue PV module products.

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