Formation and characterization of phthalocyanine dimer/C60 solar cells

AbstractOrganic solar cells with μ-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 monomer. Dimerization effect was discussed with a molecular orbital calculation, and the crystalline phases of the present solar cells were investigated by X-ray diffraction. Further improvement of the efficiency was discussed on the basis of the experimental results

Fabrication and Characterization of Element-Doped Perovskite Solar Cells

Perovskite solar cells were fabricated and characterized. X-ray diffraction analysis and transmission electron microscopy were used for investigation of the devices. The structure analysis by them showed structural transformation of the crystal structure of the perovskite, which indicated that a cubic-tetragonal crystal system depended on the annealing condition. The photovoltaic properties of the cells also depended on the structures. Metal doping and halogen doping to the perovskite and TiO2 were also investigated. The results showed an increase in the efficiencies of the devices, due to the structural change of the perovskite compound layers

Solar Cells and Energy Materials

Используемые программы Adobe AcrobatSolar Cells and Energy Materials takes an in-depth look at the basics behind energy, solar energy as well as future and alternative energy materials. The author presents insights into the current state-of-the-art of solar cells, including their basic science, inorganic, organic and Perovskite-type cells. The author also gives an outlook into next generation energy materials and sources. The focus of this book is not only the presentation of available and developing energy materials, but their thorough examination and characterization.In addition to solar cell technology and the promising application of nanostructures like quantum dots, the author discusses the science and potential of nuclear fusion materials and other energy materials like hydrogen storage materials, BN nanomaterials, alternative fuel cells and SIC FET.Energy scarcity and solutions how to substitute conventional fuels is currently THE topic of the physical sciences.Focuses on timely and the cutting-edge technologies.Солнечные элементы и энергетические материалы подробно рассматриваются основы энергетики, солнечная энергия, а также материалы будущего и альтернативные источники энергии. Автор представляет информацию о современном состоянии солнечных элементов, включая их фундаментальную науку, неорганические, органические элементы и элементы типа перовскита. Автор также дает представление о материалах и источниках энергии следующего поколения. В центре внимания этой книги не только презентация доступных и разрабатываемых энергетических материалов, но и их тщательное изучение и характеристика. В дополнение к технологии солнечных элементов и многообещающему применению наноструктур, таких как квантовые точки, автор обсуждает науку и потенциал материалов для ядерного синтеза и других энергетических материалов, таких как материалы для хранения водорода, наноматериалы BN, альтернативные топливные элементы и SIC FET. Дефицит энергии и решения о том, как заменить традиционные виды топлива, в настоящее время являются темой физичес

Hydrogen Storage in Boron Nitride and Carbon Nanomaterials

Boron nitride (BN) nanomaterials were synthesized from LaB6 and Pd/boron powder, and the hydrogen storage was investigated by differential thermogravimetric analysis, which showed possibility of hydrogen storage of 1–3 wt%. The hydrogen gas storage in BN and carbon (C) clusters was also investigated by molecular orbital calculations, which indicated possible hydrogen storage of 6.5 and 4.9 wt%, respectively. Chemisorption calculation was also carried out for B24N24 cluster with changing endohedral elements in BN cluster to compare the bonding energy at nitrogen and boron, which showed that Li is a suitable element for hydrogenation to the BN cluster. The BN cluster materials would store H2 molecule easier than carbon fullerene materials, and its stability for high temperature would be good. Molecular dynamics calculations showed that a H2 molecule remains stable in a C60 cage at 298 K and 0.1 MPa, and that pressures over 5 MPa are needed to store H2 molecules in the C60 cage