Search for dissertations about: "doping in semiconductors"

Showing result 1 - 5 of 77 swedish dissertations containing the words doping in semiconductors.

  2. 1. Photon Upconversion in Heavily Doped Semiconductors

    Author : Kilian Mergenthaler; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; III-V semiconductor materials; nanowires; photoluminescence; Photon upconversion; semiconductors; doping; Fysicumarkivet A:2016:Mergenthaler;

    Abstract : In this thesis the luminescence properties of highly doped semiconductors are studied with focus on degenerately n-doped InP. It is demonstrated how photoluminescence measurements on degenerately doped semiconductors allow an estimation of the doping concentration without need for electrical contacts. READ MORE

  4. 2. Determination of the Polaron Density in Chemically Doped Conjugated Polymers

    Author : Emmy Järsvall; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; organic semiconductors; chemical doping; spectroscopy; molecular dopants polaron density; conjugated polymers; double doping;

    Abstract : Semiconductors have become indispensable in modern electronics, playing vital roles across diverse devices such as computers, mobile phones, and solar cells. While inorganic semiconductors, such as silicon, currently dominates the industry, organic semiconductors offer promising alternatives. READ MORE

  5. 3. Image dipoles and polarons in organic semiconductors

    Author : Yongzhen Chen; Mats Fahlman; Xianjie Liu; Yiqiang Zhan; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; Interface dipole; Polaron; Conjugated polymer; Photoelectron spectroscopy; N-type doping; Electron transport material;

    Abstract : The rapid development of organic electronics depends on the synthesis of new π-conjugated molecules/polymers and the exploration of fundamental physics. However, most of the efforts have been concentrated on the former, leading to a lack of thorough understanding of many important concepts, which will become the ultimate limiting factor for overall performance and applications. READ MORE

  6. 4. Molecular Doping of Polar Conjugated Polymers

    Author : David Kiefer; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; thermal stability; dopant dianion; air stability; compatibility; polar conjugated polymer; double doping; molecular doping;

    Abstract : Organic semiconductors may enable a wide range of flexible electronics, such as flexible displays or solar cells. Conjugated polymers constitute one of the most widely studied class of organic semiconductors. READ MORE

  7. 5. Interplay of Nanostructure and Molecular Doping of Poly(3-hexylthiophene)

    Author : Jonna Hynynen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Thermoelectric plastic; P3HT; semiconducting polymer; Mo tfd-COCF3 3; F4TCNQ; structure-property relationships; doping;

    Abstract : The accelerating growth of the number of inter-connected small devices, which together make up the so-called Internet of Things, is increasing the need for autonomous power sources. Heat is an abundant and often wasted source of energy. Thermoelectric generators could be used to harvest this waste energy. READ MORE