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Organic solar cells

Xem 1-12 trên 12 kết quả Organic solar cells
  • This technique is considered as one of the most effective ways to address global energy crisis using a renewable resource. While the high cost production and environmental issues reduced the using of inorganic solar cells in life; low-cost, low energy budgets, solution processing, flexible solar cells, are the keywords associated with organic solar cells, led to improve the attention of scientists to this area.

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  • By using spin-coating technique, a low bandgap conjugated polymer, poly[2,6-(4,4-bis-(2-ethylhexyl)-4Hcyclopen-ta[2,1-b;3,4-b0]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT) and its composite thin films have been prepared. The optical absorption and photoconductive properties with over a wide spectral range, from 350 to 950 nm, were characterized. The obtained results showed that PCPDTBT:10 wt.% CdSe composite is the most suitable for efficient light-harvesting in polymer-based photovoltaic cells.

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: Hafnium metallocene compounds used as cathode interfacial layers for enhanced electron transfer in organic solar cells

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Hafnium metallocene compounds used as cathode interfacial layers for enhanced electron transfer in organic solar cells Keunhee Park1, Se

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Controllable synthesis of flake-like Al-doped ZnO nanostructures and its application in inverted organic solar cells

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  • In this work, we have studied the photoluminescence (PL) quenching of two polymeric composites, poly[2- methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly(3-hexylthiophene) (P3HT) in presence of nc-TiO2 particles by PL- spectroscopy. PL quenching values are 19.2% and 45.5%, for MEH-PPV+nc-TiO2 and P3HT+nc-TiO2, respectively.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Preparation of SnS2 colloidal quantum dots and their application in organic/inorganic hybrid solar cells

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  • The present science book "Application of Solar Energy" is edited by Professor R. D. Rugescu in the series on Solar Power and consists of 7 chapters that begin with the proof of the high thermal efficiency of the gravitational draught through concentrated solar heating. It continues with novel technologies of producing organic fuels through solar heating, new types of photovoltaic cells, long term use of thermal solar power plants, the efficiency of thermal storage and applications in Niger of the Solar power.

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  • The novel properties of multifunctional polymer nanocomposites make them useful for a broad range of applications in fields as diverse as space exploration, bioengineering, car manufacturing, and organic solar cell development, just to name a few. Presenting an overview of polymer nanocomposites, how they compare with traditional composites, and their increasing commercial importance, Multifunctional Polymer Nanocomposites conveys the significance and various uses of this new technology for a wide audience with different needs and levels of understanding. ...

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  • Some insurers have research units and can advise manufacturers and other organizations of theft trends and vulnerabilities of various vehicles to theft. The Coalition Against Insurance Fraud’s public awareness campaign includes airbag theft and works with legislators to address insurance fraud issues. The National Insurance Crime Bureau has brought together insurers and law enforcement agencies to facilitate identification, detection and prosecution of auto theft-related insurance fraud.

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  • Photosynthesis is the primary source of energy for all life forms (except chemolithotrophic prokaryotes). Much of the energy of photosynthesis is used to drive the synthesis of organic molecules from atmospheric CO2. How is solar energy captured and transformed into metabolically useful chemical energy? How is the chemical energy produced by photosynthesis used to create organic molecules from carbon dioxide?

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  • Phototrophy is the process by which organisms trap photons and store energy as chemical energy in the form of adenosine triphosphate (ATP). ATP transports chemical energy within cells for metabolism. There are three major types of phototrophy: Oxygenic and Anoxygenic photosynthesis, and Rhodopsin-based phototrophy. Photosynthesis is a chemical process that converts carbon dioxide into different organic compounds using solar energy. Oxygenic and anoxygenic photosynthesis undergo different reactions in the presence and absence of light (called light and dark reactions, respectively).

    pdf440p conquynho32 15-09-2012 83 6   Download

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