Sökning: "heterojunction"

Visar resultat 1 - 5 av 14 uppsatser innehållade ordet heterojunction.

  1. 1. Organic Solar Cell Fabrication and Study on the Influence of Spin-dependent Processes on the Photocurrent using Spin-sensitive Techniques

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets fysik

    Författare :Ronja Olsmats Baumeister; Evelina Roxner; [2022]
    Nyckelord :EDMR; EPR; trEDMR; PEDOT:PSS; PCBM; P3HT; organic solar cells; osc; opv;

    Sammanfattning : Research in recent years on novel materials in organic solar cells (OSCs) have contributed to a rapid advancement in OSC efficiency. Here, OSCs with the well-studied organic semiconductors poly(3-hexylthiophene):[6,6]-phenyl C60-butyric acid methylester (P3HT:PCBM) in a bulk heterojunction structure were prepared to establish a baseline procedure for fabrication and spin-sensitive spectroscopy. LÄS MER

  3. 2. Cu2O/TiO2 Nanorod Heterojunctions: Synthesis, Characterization and Applications as Solar Cells on the Nanoscale

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Edward Dellamary; [2020]
    Nyckelord :;

    Sammanfattning : Novel solar cells are being synthesized from sustainable, non-toxic, and economic materials. All metal oxide semiconductors are one such class of these materials. LÄS MER

  4. 3. Properties of III-V/Si heterojunction fabricated by HVPE

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Prakhar Bhargava; [2020]
    Nyckelord :;

    Sammanfattning : Silicon is a promising material and is used for a wide range of applications in the electronics industry because of the high quality surface passivation given by the native oxide layer SiO2e. However, Si is not an ideal candidate for optoelectronic applications due to its indirect bandgap of 1. LÄS MER

  5. 4. Spatial control of electron & hole states in InAs/GaSb heterostructures

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Felix Vennberg; [2018]
    Nyckelord :InAs; GaSb; Nanowires; ambipolar; heterostructures; III-V; Physics and Astronomy;

    Sammanfattning : Single nanowire transistors employing three separately controlled electrostatic gates were fabricated to investigate band gap modulation in InAs-GaSb heterostructures. The aim is to show hybridization between electron and hole states over the heterojunction. LÄS MER

  7. 5. Nanoscale electrical properties of heterojunction interfaces for solar cells : modeling and experiments

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Martin Eriksson; [2018]
    Nyckelord :solar cell; heterojunction; ZnO; Cu2O; Comsol; atomic force microscopy; I-V characteristics;

    Sammanfattning :   A numerical model have been developed in order to describe and achieve deeper understanding of experimentally obtained I-V curves from Cu2O/ZnO p-n heterojunctions for potential use as future solar cell material. The model was created using the simulation software COMSOL Multiphysics® and their semiconductor module. LÄS MER