• 한국전기화학회:학술대회논문집
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• 2003.10a
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• pp.38-38
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• 2003

• Proceedings of the Materials Research Society of Korea Conference
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• 2001.11a
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• pp.174-174
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• 2001

• Polymer Science and Technology
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• v.17 no.4
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• pp.456-464
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• 2006

• Polymer Science and Technology
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• v.21 no.6
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• pp.557-562
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• 2010

• Proceedings of the Korean Vacuum Society Conference
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• 2007.08a
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• pp.192-192
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• 2007

• Proceedings of the Korean Vacuum Society Conference
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• 2007.08a
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• pp.203-203
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• 2007

• Proceedings of the Korean Vacuum Society Conference
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• 2007.08a
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• pp.211-211
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• 2007

• Journal of IKEEE
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• v.25 no.2
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• pp.267-272
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• 2021

Recently, attention has been focused on renewable energy and carbon neutrality to resolve fossil energy depletion and environmental problems. In addition, high-rise urban buildings and an increase in building energy are rapidly increasing. There are many restrictions on installing solar power in urban areas. In addition, as buildings become taller, a lot of low-light environments in which shade is formed occur. Therefore, in this study, we intend to develop a power plant capable of generating electric power in an outdoor low-light environment and indoor lighting environment. The power plant in a low-light environment used a dye-sensitized solar cell. A unit cell and a 20cm×20cm module were manufactured, and the electrical characteristics of the power plant were measured using light sources of LED, halogen lamp, and 3-wavelength lamp. The photoelectric conversion efficiency of the unit cell was 17.2%, 1.28%, 19,2% for each LED, halogen lamp, and 3-wavelength lamp, and the photoelectric conversion efficiency of the 20cm×20cm module was 10.9%, 8.7%, and 11.8%, respectively. In addition, the maximum power value of the module was 13.1mW, 15.7 mW, and 14.2 mW for each light source, respectively, confirming the possibility of power generation in a low-light environment

• Transactions of the Korean hydrogen and new energy society
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• v.25 no.3
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• pp.289-296
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• 2014

Here, we have studied the effect of water added electrolyte on the photovoltaic performance of dye-sensitized solar cells (DSSCs). It was found that open-circuit voltage ($V_{oc}$) increased and short-circuit current density ($j_{sc}$) decreased with the increase of the amount of added water in the electrolyte of the DSSCs. Electrochemical impedance spectroscopy (EIS) study showed that the electrolyte with added water shifted the dye loaded $TiO_2$ conduction band upward that eventually increased $V_{oc}$ of the cells. On the other hand, the upward shift of $TiO_2$ conduction band decreased the driving force for the electron injection from the lowest unoccupied molecular orbital (LUMO) of the dye molecules to the conduction band of $TiO_2$ that resulted in decreased $j_{sc}$.

• 한국신재생에너지학회:학술대회논문집
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• 2008.05a
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• pp.412-415
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• 2008

In a research on the practical dye-sensitized solar cell, a study on a large module have preference because module must be able to generate the proper current that is possible to convert electrically. So the parallel connection of dye-sensitized solar cells which outputs a large current easily is essential. However, there is a current loss in a paralle connection of dye-sensitized solar cells and the loss becomes larger according to increasing the number of parallel connection. In this study, we analyzed the cause of the current loss in the parallel connection by using the equivalent circuit analysis. One DSC used in this experiment had an active area $8cm^2$(4.62cm$\times$1.73cm) and it attained a conversion efficiency of 5.43% under 1 sun illumination ($P_{in}$ of 100 mW/$cm^2$) using a solar simulator.