Print Email Facebook Twitter Photogeneration Diffusion and Decay of Charge Carriers in Quantum-Dot Solids Title Photogeneration Diffusion and Decay of Charge Carriers in Quantum-Dot Solids Author Gao, Y. Contributor Siebbeles, L.D.A. (promotor) Van der Zant, H.S.J. (promotor) Faculty Applied Sciences Department Chemical Engineering Date 2012-10-16 Abstract Semiconductor nanocrystals (NCs), which can have a variety of sizes, shapes and chemical compositions, will be a large and important family of future advanced materials.This thesis focuses on colloidal semiconductor NC solids, also called quantum-dot (QD) solids, which are promising materials for many applications, such as photo-detectors, field-effect transistors, solar cells, light-emitting diodes, and lasers. The thesis presents studies on the charge carrier properties of PbSe QD solids, going through the charge carrier photogeneration, thermalization, diffusion and decay, which together are the ``life and fate'' of the charge carriers. Diverse tools have been utilized to reveal the whole picture of the ``life and fate''. The most important ones are: femtosecond transient absorption spectroscopy (TA) (Chapter 2, 3, 4), picosecond Terahertz spectroscopy (THz) (Chapter 2), the nanosecond time-resolved microwave conductivity technique (TRMC) (Chapter 2-5), and Monte Carlo simulations (Chapter 4). Subject quantum dotAuger Decaycharge carrier conductivitysemiconductor To reference this document use: https://doi.org/10.4233/uuid:ac907049-96d0-4304-a5d1-5b2661741ab1 Publisher Posen & Looijen ISBN 9789064645922 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 2012 Gao, Y. Files PDF DelftThesis_YunanGao_Chem ... eering.pdf 24.41 MB Close viewer /islandora/object/uuid:ac907049-96d0-4304-a5d1-5b2661741ab1/datastream/OBJ/view