检索结果-南通市图书馆

Effects of Au nanoparticle addition to hole transfer layer in organic solar cells based on copper naphthalocyanine and fullerene

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2014年第3期24卷 179-183页

作者： Akihiko Nagata Takeo Oku Tsuyoshi Akiyama atsushi suzuki Department of Materials Science The University of Shiga Prefecture

Organic solar cells based on copper naphthalocyanine(CuNc) and fullerene(C60) were fabricated, and their photovoltaic properties were investigated. C60 and CuNc were used as n-type and p-type semiconductors, respectively. In addition, the effect of Au nanoparticle addition on a hole transfer layer was investigated, and the power conversion efficiency of the devices was improved after blending the Au nanoparticles into the hole transport layer. Nanostructures of Au nanoparticles were investigated by transmission electron microscopy and X-ray diffraction. Energy levels of molecules were calculated by molecular orbital calculations, and the nanostructure and electronic properties were discussed.& 2014 Chinese Materials Research Society. Production and hosting by Elsevier B.V. All rights reserved.

关键词： Solar cell Copper naphthalocyanine Fullerene Au nanoparticle

Fabrication and characterization of TiO2-based dye-sensitized solar cells

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2011年第2期21卷 122-126页

作者： Takeo OKU Nariaki KAKUTA Kengo KOBAYASHI atsushi suzuki Kenji KIKUCHI Department of Materials Science The University of Shiga PrefectureShiga 522-8533Japan

Dye-sensitized solar cells TiO2with were *** phase composition and microstructures of the solar cells were examined by X-ray diffractometry and transmission electron microscopy,and the energy levels of the present solar cells were also *** results show that a solar cell mixed with xylenol orange and rose Bengal shows a higher conversion efficiency compared to solar cells with a single *** introduction of amorphous TiO2layers results in an improvement of the conversion efficiency.

关键词： solar cell TiO2 dye porphyrin microstructure

Fabrication,nanostructures and electronic properties of nanodiamond-based solar cells

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2010年第1期20卷 38-43页

作者： Akihiko NAGATA Takeo OKU Kenji KIKUCHI atsushi suzuki Yasuhiro YAMASAKI Eiji OSAWA Department of Materials Science The University of Shiga Prefecture Orient Chemical industries Co.Ltd. Department of New Business8-1 Sanra-Higashi-MachiNeyagawaOsaka572-8581Japan 3. NanoCarbon Research Institute Ltd.3-15-1 TokidaUedaNagano386-8567Japan

Nanodiamond-based solar cells were fabricated and the photovoltaic properties were ***(C60)and fullerenol(C60(OH)10-12)were used as n-type semiconductors,and diamond nanoparticles and metal phthalocyanine derivative were used as p-type *** nanostructures of the solar cells were investigated by transmission electron microscopy and X-ray diffracometry,and the electronic property was discussed.

关键词： solar cell nanodiamond C60 phthalocyanine

Formation and characterization of phthalocyanine dimer/C60 solar cells

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2011年第1期21卷 27-30页

作者： Akihiro TAKEDA Akira MINOWA Takeo OKU atsushi suzuki Kenji KIKUCHI Yasuhiro YAMASAKI Department of Materials Science The University of Shiga Prefecture2500HassakaHikoneShiga 522-8533Japan Orient Chemical Industries Co.Ltd.Department of New Business8-1Sanra-Higashi-MachiNeyagawaOsaka 572-8581Japan

Organic solar cells withμ-oxo-bridged gallium phthalocyanine dimer(GaPc dimer) and fullerene were produced by an evaporation method.A device based on the GaPc dimer provided a conversion efficiency of 4.2×10-3%,which is better compared to a device based on phthalocyanine *** effect was discussed with a molecular orbital calculation,and the crystalline phases of the present solar cells were investigated by X-ray *** improvement of the efficiency was discussed on the basis of the experimental results.

关键词： phthalocyanine dimmer fullerene solar cell

Slotted Hole Effect on Damage Mechanism of Gymnasium Building with RC Frame and Steel Roof

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Civil Engineering 2020年第2期10卷 162-174页

作者： atsushi suzuki Tomomi Fujita Yoshihiro Kimura Oyu Tolgoi Project Team Premium Industrial and Engineering LLC Ulaanbaatar Mongolia Architectural Course National Institute of Technology: Sendai College Natori Japa Graduate School of Engineering Tohoku University Sendai Japan

On the 2011 off the Pacific Coast of Tohoku Earthquake, gymnasium buildings exhibited the unexpected structural damages, which prevented a use as evacuation shelters in during- and post-disaster periods. The major failure occurring on the connection between the RC column top and steel roof as well as the cracks in the RC column base was observed during the emergent inspection. According to the earlier studies, it was implied that the presence of the slotted hole possibly deteriorates the seismic capacity;however, the length of slotted hole was fixed at a certain value. Facing this concern, this research attempts to clarify the influence of the slotted hole length through a comprehensive parametric study by pushover and seismic response analyses. In conclusion, it has been discovered that the slotted hole deteriorates the seismic capacity for the connection failure up to almost 50% of that without slotted hole. Moreover, the discrepancy of characteristics obtained by the static and dynamic analyses is originated by means of the presence of slotted hole. This slotted hole effect should be noted by structural engineers and researchers to provide the adequate seismic diagnosis and strengthening.

关键词： RC Frame with Steel Roof Structure The 2011 off the Pacific Coast of Tohoku Earthquake Damage Mechanism Pushover Analysis Seismic Response Analysis

Microstructures and Photovoltaic Properties of Polysilane/C<sub>60</sub>-Based Solar Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2012年第8期3卷 557-561页

作者： atsushi Kawashima Takeo Oku atsushi suzuki Kenji Kikuchi Shiomi Kikuchi Department of Materials Science The University of Shiga Prefecture Hikone Japan

Polysilane/C60-based solar cells were fabricated and investigated. Two-types of devices with bulk heterojunction and heterojunction structures were examined and characterized. Addition of silicon-based polymer to the organic solar cells improved the conversion efficiency by wide optical absorption and high carrier mobility. Microstructures of the solar cells were investigated by using X-ray diffraction and transmission electron microscopy. Energy levels in the present solar cells were discussed.

关键词： Bulk Heterojunction Polysilane Fullerene Microstructure

Fabrication and Characterization of Phthalocyanine-Based Organic Solar Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2014年第5期5卷 278-284页

作者： Makoto Iwase atsushi suzuki Tsuyoshi Akiyama Takeo Oku Department of Materials Science The University of Shiga Prefecture Shiga Japan

Organic solar cells using poly (copper phthalocyanine), copper tetrakis (4-cumylphenoxy) phthalocyanine, copper phthalocyanine and titanyl phthalocyanine were fabricated and characterized. Photovoltaic properties of the solar cells with inverted structures were investigated by optical absorption, current density-voltage characteristic and incident photon to current conversion efficiency. These phthalocyanines absorbed light with wavelength longer than 500 nm. A carrier transport mechanism is proposed based on the energy level diagram.

关键词： Organic Solar Cells Phthalocyanine Copper Poly Phthalocyanine

Fabrication and Characterization of Bulk Heterojunction Solar Cells Based on Liquid-Crystal Semiconductive Polymer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and Power Engineering 2012年第6期4卷 459-464页

作者： atsushi suzuki Shinichi Ogahara Tsuyoshi Akiyama Takeo Oku Department of Materials Science The University of Shiga Prefecture Hikone Japan

Bulk heterojunction solar cells based on poly poly(9,9-dioctylfluorene-co-bithiophene) (F8T2) as liquid crystal semiconductive polymer and C60 as electron acceptor were fabricated and characterized. Thermal treatment of the bulk heterojunction films at annealing in the range of glass temperature and liquid crystal transition was performed for tuning optimization with improving the photovoltaic and optical properties. The photovoltaic performance was depended on morphological behavior in active layer at crystal state below glass temperature. The F8T2 thin film worked for electron-donor layer as p-type semiconductor to support charge transfer in active layer. Mechanisms of the photovoltaic properties were discussed on the basis of experimental results.

关键词： Liquid Crystal Polymer Bulk Heterojunction Solar Cell Photovoltaic Property Optical Property

Theoretical Study of Gallium Phthalocyanine Dimer-Fullerene Complex for Photovoltaic Device

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Modern Physics 2011年第9期2卷 966-969页

作者： Akihiro Takeda Takeo Oku atsushi suzuki Yasuhiro Yamasaki 不详

Geometry and electronic structures of gallium phthalocyanine dimer and fullerene molecules were investigated by theoretical calculation. The highest occupied molecular orbital was localized on the donor site, and the lowest unoccupied molecular orbital were localized on accepter site. The present results indicate that high conversion efficiency would be expected when phthalocyanine dimers were used as solar cell materials.

关键词： Phthalocyanine Dimer Fullerene Solar Cell