Essays about: "electron recombination"

Showing result 1 - 5 of 9 essays containing the words electron recombination.

  1. 1. The modernization of a DOS-basedtime critical solar cell LBICmeasurement system.

    University essay from Karlstads universitet

    Author : Gunnar Hjern; [2019]
    Keywords : Pascal programming language; Linux; operating system; real-time; PREEMPT_RT patch; Free Pascal compiler; Lazarus; multi-threading; computer controlled measurements; false color map; refactoring; software modernization; adaptation layer; MS-DOS; GPIB; IEEE-488; silicon solar cell; quantum efficiency; LBIC; electron recombination; serial communication; micro-controller; ISR; incremental encoder; lock-in amplifier; trans-impedance amplifier; triggered measurement;

    Abstract : LBIC is a technique for scanning the local quantum efficiency of solar cells. This kind of measurements needs a highly specialized, and time critical controlling software. In 1996 the client, professor Markus Rinio, constructed an LBIC system, and wrote the controlling software as a Turbo-Pascal 7.0 application, running under the MS-DOS 6. READ MORE

  3. 2. Time-Resolved Photoluminescence Studies of InGaP Nanowires for Improving the Internal Quantum Efficiency

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Lert Chayanun; [2017]
    Keywords : Physics and Astronomy;

    Abstract : Semiconductor Nanowires are promising building blocks for advanced optoelectronic devices since their small diameter give rise to quantization effects. The small diameter also makes them susceptible to non-radiative recombination due to surface states. READ MORE

  4. 3. Copper-based Redox Systems for Dye-sensitized Solar Celles

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Rebecca Pernechele; [2017]
    Keywords : ;

    Abstract : In order to take on the challenge of the world energy issues, there is a necessity to identify alternative energy sources to the fossil fuels. The sun represents the most abundant source of energy, and one way to harvest it is by photovoltaic devices directly converting sunlight into electricity. READ MORE

  5. 4. Interligand Electron Transfer Dynamics in Ruthenium Polypyridyl Complexes for Dye Sensitized Solar Cells Determined with Femtosecond Transient IR Absorption Anisotropy

    University essay from Uppsala universitet/Fysikalisk kemi

    Author : Belinda Pettersson Rimgard; [2016]
    Keywords : Interligand electron transfer; dye sensitized solar cell; ruthenium; N3; N712; transient absorption spectroscopy; ultrafast spectroscopy; anisotropy;

    Abstract : Interligand electron transfer (ILET) may be an essential parameter for the injection ofan electron from the dye into the semiconductor surface of a dye sensitized solar cell(DSSC). Without an efficient injection, competing recombination paths may become apparent. READ MORE

  6. 5. NANOMATERIALS FOR THE DECONTAMINATION OF WASTE WATER CONTAINING PHARMACEUTICAL DRUGS

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Joydip Paul; [2015]
    Keywords : ;

    Abstract : The existent of pharmaceutical drugs in our aquatic media is a preeminent burden for the environment effect including health fitness issues. The presence of tiny amount of organic and inorganic pharmaceutical drugs including hormones, birth control pills, NSAID, antibodies can causes a huge destruction for our living entity now a days. READ MORE