Search for dissertations about: "photochromism"

Found 4 swedish dissertations containing the word photochromism.

  2. 1. Photochromism - Logic and Biologic Approaches

    Author : Martin Hammarson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DNA-binding; molecular logic; dithienylethene; photochromism; DNA; photoswitch; spiropyran;

    Abstract : Photochromism is the light-induced colour change of molecules called photo-chromic compounds. The isomerisation causes changes in the electronic properties of the molecules and rearrangements of bonds which can be used in many more applications than the observed colour change. READ MORE

  4. 2. ALL-OPTICAL CONTROL OF MOLECULAR FUNCTIONS - ENERGY TRANSFER SWITCHING AND INFORMATION PROCESSING

    Author : Magnus Bälter; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; white-light generation; molecular logic; spiropyran; photochromism; DNA-binding; diarylethene; energy transfer; all-photonic; fulgimide; dithienylethene; photoswitch; fluorescence modulation;

    Abstract : In this work, the photoswitching of molecular systems endowed with photochromic functionality have been investigated for the reversible photonic gating of excitation energy transfer (FRET) reactions as well as in application for all-photonic molecular logic. The presented systems involves the integration of photochromic entities within both covalent and non-covalent designs and serves to implicate photonic switching of molecular level phenomena. READ MORE

  5. 3. Mimicking the Binary World: Photochromic Compounds in Molecular Logic

    Author : Martin Hammarson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DNA; dithienylethene; molecular logic; spiropyran; photochromism; porphyrin;

    Abstract : The language of the binary world is used in, e.g., electronic circuits of a computer where a signal either can be on, known as 1 or off, known as 0. In the effort to make things smaller, molecules that mimic this binary world have been suggested as potential replacements for electronic circuits. READ MORE

  6. 4. Femtosecond Investigations of Spiropyran Photochromism in Solution

    Author : 1974- Ann-Kathrin Holm; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi;

    Abstract : .... READ MORE