Avancerad sökning

Visar resultat 1 - 5 av 10 uppsatser som matchar ovanstående sökkriterier.

  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. SnOx electron selective layers for perovskite/silicon tandem solar cells using atomic layer deposition

    Master-uppsats, KTH/Energiteknik

    Författare :Lisa Anna Zafoschnig; [2018]
    Nyckelord :;

    Sammanfattning : In this work the application of ALD deposited SnOx films as electron transport layers in perovskite solar cells is analysed. Processes to fabricate homogeneous, transparent and conductive tin oxide films were developed on an Oxford Instruments FlexAL tool using a TDMASn precursor and H2O as oxidiser. LÄS MER

  4. 3. Modification of a transient EPR and photoluminescence detection setup

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Olof Grund; [2017]
    Nyckelord :EPR; photo luminescence; FSC2;

    Sammanfattning : Climate change has given rise to higher demand of renewable energy. Conventional non-organic solar cells are still seen the most on the market but the last 10-20 years there has been an exponential increase in research about organic solar cells. LÄS MER

  5. 4. AFM Studies of Pristine PCBM Changes Under Light Exposure

    M1-uppsats,

    Författare :Erin Chambers; [2013]
    Nyckelord :PCBM; light; elastic modulus;

    Sammanfattning : Organic solar cells promise a cheap and easy alternative to silicon photovoltaics, but there are many problems that must be solved before they can be a stable and efficient substitute. One such problem is the degradation of solar cells under exposure to light and oxygen. LÄS MER

  7. 5. Measuring the efficiency and charge carrier mobility of organic solar cells

    Master-uppsats, Institutionen för fysik

    Författare :ABASI ABUDULIMU; [2012]
    Nyckelord :Solar cells; P3HT; PCBM; shourt circuit current; open circuit voltage; maximum power; fill factor; efficiency; charge carrier mobility; CELIV; DI-SCLC;

    Sammanfattning : P3HT single layer, P3HT/PCBM bilayer and P3HT/PCBM inverted bilayer devices were produced by spin coating organic layers onto ITO patterned glass in air, and clamping it with an Au coated silicon wafer, as top electrode, at the end (Figure13). Normal and inverted bilayer devices were also fabricated with and without PEDOT:PSS. LÄS MER