Photovoltaic materials

Xem 1-10 trên 10 kết quả Photovoltaic materials
  • Solar cells are optoelectronic devices that convert the energy of solar radiation directly into electricity by the photovoltaic (PV) effect. Assemblies of cells electrically connected together are known as PV modules, or solar panels. The photovoltaic effect was first recognized in the 19th century but the modern PV cells were developed in the mid-1950s. The practical application of photovoltaics started to provide energy for orbiting satellites.

    pdf0p ktcn_1 10-07-2012 56 22   Download

  • The third book of four-volume edition of “Solar Cells” is devoted to solar cells based on silicon wafers, i.e., the main material used in today's photovoltaics. Single-crystalline Si (c-Si) modules are among the most efficient but at the same time the most expensive since they require the highest purity silicon and involve a lot of stages of complicated processes in their manufacture. Polycrystalline silicon (mc-Si) cells are less expensive to produce solar cells but are less efficient.

    pdf0p ktcn_1 10-07-2012 52 20   Download

  • A look on energy, renewable energies, energy storage and synthetic fuels, hybrid architecture, fuel cells, hydrogen as a vector of energy of the future.The Earth resources are quite limited in quantity Many challenges to mankind in 21st century: development, health, water, food, demography, education, energy.In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation"[1]) is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

    pdf156p dienquochuy 21-12-2012 42 19   Download

  • Photovoltaics covers an extremely wide range of different fields of science and technology that are in a state of continuous development and improvement for decades. Solar cells and models that have been developed to the level of industrial production or prototype samples, as well as the devices of exploratory types are divided into the so-called generations of photovoltaics. Chapters, which concern the problems of the first, second and third generations of solar cells are included in the relevant three books of this edition....

    pdf0p ktcn_1 10-07-2012 50 15   Download

  • SOLAR CELLS – DYE-SENSITIZED DEVICES Edited by Leonid A. Kosyachenko .Solar Cells – Dye-Sensitized Devices Edited by Leonid A. Kosyachenko Most solar modules used in photovoltaics are currently produced from crystalline and polycrystalline silicon wafers, the representatives of so-called first generation of solar cells. This type of devices are among the most efficient but at the same time the most expensive since they require the highest purity silicon and involve a lot of stages of complicated processes in their manufacture.

    pdf0p ktcn_1 10-07-2012 37 13   Download

  • The study of quasi 1-dimensional (1d) semiconductor nano-crystals (so-called nanowires) represents the forefront of today’s solid state physics and technology.

    pdf198p samsungwifi 10-04-2012 96 7   Download

  • Free-standing semiconductor nanowires have been used to fabricate nanometer-scale field-effect transistors (FETs), bipolar junction transistors, and light- emitting diodes, nano-scale lasers, complementary inverters, complex logic gates, gas sensors, nano-resonators, nano-generators and nano-photovoltaic devices. Since the very first pioneering works carried out by K. Hiruma in Japan in the mid 90’s, and by C.M.

    pdf230p samsungwifi 10-04-2012 70 6   Download

  • In this chapter, we will find out how to get the most solar energy out of the sun by considering the time, the altitude angle, the radiation and the photovoltaic (PV) materials. A simple PV model helps to understand the mechanism of energy conversion - solar to electricity. We will further use a simple equivalent circuit to represent a PV cell to investigate its current-voltage characteristics.

    pdf14p vanthang122141 13-05-2011 63 18   Download

  • A wide variety of detail regarding genuine and proprietary research from distinguished authors is presented, ranging from new means of evaluation of the local solar irradiance to the manufacturing technology of photovoltaic cells. Also included is the topic of biotechnology based on solar energy and electricity generation onboard space vehicles in an optimised manner with possible transfer to the Earth. The graphical material supports the presentation, transforming the reading into a pleasant and instructive labor for any interested specialist or student....

    pdf0p cucdai_1 16-10-2012 39 12   Download

  • Solar energy refers primarily to the use of solar radiation for practical ends. However, all renewable energies, other than geothermal and tidal, derive their energy from the sun. Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, pumps, and fans to convert sunlight into useful outputs.

    pdf0p nhacchovina 23-03-2013 18 3   Download

CHỦ ĐỀ BẠN MUỐN TÌM

Đồng bộ tài khoản