• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.246-249
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• 2007

The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are sol id state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre- manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. So, this paper describes a design and performance test of the 10kW poly metal pv module(pmpp) system. It is concluded that the prediction of BIPV system's performance should be based on the more accurate PV module installation.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.608-609
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• 2008

Photovoltaics and wind energy sources are being increased recognised as cost effective generation sources in small isolated power systems(SIPS) primarily supplied by costly diesel fuel. Deterministic and probabilistic techniques are combined using a system well-being approach to provide useful reliability indices for SIPS containing renewable energy. An evaluation of the contribution from photovoltaics and wind energy sources to SIPS reliability is presented. The practicality and effectiveness of the methodology is illustrated by a case study.

• KIEAE Journal
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• v.6 no.4
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• pp.17-24
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• 2006

The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are solid state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre- manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. Architecture considerations for the integration of PV module to building envelope such as building structure, construction type, safety, regulation, maintenance etc. have been carefully refelected from the early stage of BIPV module design. Trial product of BIPV module are manufactured and sample construction details for demonstration building are purposed. Therefore, this paper intends to advanced its practical use by proposing how to get integrated PV system which can be applied to prefab building material, and how to apply it.

• Vacuum Magazine
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• v.2 no.2
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• pp.12-16
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• 2015

Organic photovoltaics (OPVs) have attracted significant interest in an interdisciplinary research field for the decades as a next-generation photovoltaic device due to their unique advantages. One of requirements for OPVs having high power conversion efficiency is the favorable energy level alignment between the electrode/organic and organic/organic interfaces to manage the exciton dissociation and improve the charge transport. In this review, strategies to enhance the OPV performance by controlling the energy level alignment are discussed. The insertion of an exciton blocking layer leads to the efficient dissociation of photogenerated excitons at the donor/acceptor interface enhancing the short-circuit current density. The choice of a donor having a high ionization energy and an acceptor having a low electron affinity increases the open-circuit voltage. The insertion of an appropriate work function modifier which reduces the charge injection barrier removes the S-kink in current density-voltage characteristics of OPVs and improves the fill factor. This review would give a valuable guide to design the efficient OPV structure.

• Applied Science and Convergence Technology
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• v.23 no.5
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• pp.254-260
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• 2014

Organic solar cells have attracted extensive attention as a promising approach for cost-effective photovoltaic devices. However, organic solar cell has disadvantage of low power conversion efficiency in comparison with other type of solar cell, due to the recombination ratio of hole and electron is too large in the active layer. Thus we have change the surface structure of PEDOT:PSS layers to improve the current density by colloidal lithography method using various-size of polystyrene sphere. The two types of coating method were applied to fabricate the different pattern shape and height, such as spin coating and drop casting. Using the organic solvent, we easily eliminate the PS sphere and could make the varied pattern shapes by controlling the wet etching time. Also we have measured the electrical properties of patterned PEDOT:PSS film to check whether it is suitable for organic photovoltaics.

• Proceedings of the KIEE Conference
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• 2001.10a
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• pp.325-327
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• 2001

So far, because the photovoltaics power generation system can be treated to a harmonics source for the power distribution systems, the PV system combined the function of AF systems as well as the AF systems using the PV module as the power source have never been reported. However, authors have recently proposed a novel concept of the photovoltaics power generation system adding the function of the active filter (PV-AF system). In this paper, in order to confirm the operational characteristics of the PV-AF system, various MPPT controls are applied and analyzed.

• Proceedings of the KIEE Conference
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• 2003.11a
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• pp.100-102
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• 2003

This paper describes a time-sequential simulation technique for the reliability evaluation of a distribution system including Photovoltaics(PV) Generation. A three-state model of a PV is presented, considering variable radiation and the forced outage rate. A test distribution system is utilized to illustrate the proposed model. The effects on the distribution system reliability of the PV parameters are examined and illustrated.

• 한국신재생에너지학회:학술대회논문집
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• 2006.06a
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• pp.138-141
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• 2006

The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are solid state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre-manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. So, the purpose of this research is to integrated prefab building materials depending on the cooling type of PV modules. It is concluded that the prediction of BIPV system's performance should be based on the more accurate PV module temperature. From the basis of these results on the correlation of temperature and irradiation were obtained.

• Journal of the Korean Society of Industry Convergence
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• v.25 no.1
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• pp.71-78
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• 2022

With the advent of cutting-edge technology, renewable energy is significantly considered as alternative resources to supply electric power. However, many barriers such as energy intermittency, high initial installation cost, and low-efficiency generation challenged building new infrastructure with clean energy. Efforts reducing greenhouse gas emissions and reliance on fossil fuels resulted in the decentralization of power generation like distributed energy resource (DER). This paper is to introduce and evaluate the feasibility of building-integrated photovoltaics (BIPV) in a high-rise building in Ulsan. To optimize BIPV, a variety of methods to minimize efficiency decrease and maximize electric power generation after installing BIPV on the building's facade are suggested. The variables causing power losses are analyzed. By utilizing System Advisor Model (SAM), actual power generated from solar panels is measured by Thin-film PV, Mono-crystalline PV, and Poly-crystalline PV.

• Prospectives of Industrial Chemistry
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• v.24 no.1
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• pp.3-13
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• 2021

강유전체는 특유의 높은 유전상수와 자발분극으로 인해 반도체 소자 및 센서 등에서 널리 활용되어 왔다. 강유전체의 특성을 활용하여 광전소자에서 형성된 전하를 원하는 방향으로 쉽게 이동시킬 수 있는 특성을 가지고 있어 광전소재와 결합 시 특성 향상이 가능한 것으로 알려져 있다. 그러나 강유전체와 기존 태양전지와의 융합 연구들은 기초적인 단계의 연구가 산발적으로 진행되고 있으나, 아직 실용화 단계에는 이르지 못하고 있다. 본 서지에서는 최근에 활발히 연구되기 시작한 강유전 기반 광소자와 그 관련 연구를 소개하고자 한다. 특히 강유전체 자체를 활용한 태양전지와 유기태양전지, 실리콘 태양전지, 페로브스카이트 태양전지 등 최근 가장 활발히 연구되고 있는 태양전지 소재와 강유전체를 결합한 새로운 태양전지의 연구동향을 다룰 고자 한다. 이와 같은 자발분극에 의한 캐리어 이동의 변화는 에너지 소자 전반에 기여할 수 있을 것이다.