Colloidal quantum dot optoelectronics and photovoltaics /edited by Gerasimos Konstantatos, Edward H. Sargent.

"Capturing the most up-to-date research in colloidal quantum dot (CQD) devices, this book is written in an accessible style by the world's leading experts. The application of CQDs in solar cells, photodetectors and light-emitting diodes (LEDs) has developed rapidly over recent years, promising to transform the future of clean energy, communications, and displays. This complete guide to the field provides researchers, students and practitioners alike with everything they need to understand these developments, and begin contributing to future applications. Introductory chapters summarise the fundamental physics and chemistry, whilst later chapters review the developments that have propelled the field forwards, systematically working through key device advances. The science of CQD films is explained through the latest physical models of semiconductor transport, trapping, and recombination, whilst the engineering of organic and inorganic multilayered materials is shown to have enabled major advances in the brightness and efficiency of CQD LEDs"--

Includes bibliographies and index.

Coverpage; Half title; Title; Copyright; Contents; Contributors; Preface; 1 Engineering colloidal quantum dots; 1.1 Colloidal synthesis of inorganic nanocrystals and quantum dots; 1.1.1 Introductory remarks: history and terminology; 1.1.2 Basics of the surfactant-assisted colloidal synthesis of NC quantum dots; 1.2 Long-range ordered NC solids; 1.2.1 Single-component NC superlattices; 1.2.2 Multicomponent NC superlattices; Binary NC superlattices (BNSLs); Ternary and quasi-ternary NC superlattices (TNSLs and quasi-TNSLs); Quasicrystalline BNSLs; 1.2.3 Shape-directed self-assembly of NCs.

1.3 Surface chemistry- a gateway to applications of NCs1.3.1 Organic capping ligands; Initial capping molecules (surfactants, stabilizers); Ligand-exchange with smaller capping molecules and with cross-linking molecules; Cross-linking surface ligands; 1.3.2 Complete removal of organic ligands and inorganic surface functionalization; Inorganic capping ligands; Ligand-free NC surfaces; 2 Aqueous based colloidal quantum dots for optoelectronics; 2.1 Introduction; 2.2 Aqueous colloidal synthesis of semiconductor NCs; 2.2.1 ZnX NCs; 2.2.2 Alloyed ZnSe based NCs; 2.2.3 CdX NCs.

2.2.4 Core/shell CdTe based NCs2.2.5 Alloyed CdTe based NCs; 2.2.6 CdSe, CdSe/CdS NCs; 2.2.7 HgX and PbX NCs; 2.2.7.1 HgX NCs; 2.2.7.2 PbX NCs; 2.3 Assemblies and functional architectures of NCs; 2.3.1 LbL assembly technique; 2.3.2 Assembly of NCs on micro- and nano-beads; 2.3.3 Covalent coupling of NCs; 2.3.4 Controllable aggregation; 2.3.5 Nanowires and nanosheets; 2.3.6 Nanocrystal based gels and aerogels; 2.4 Conclusions and outlook; 3 Electronic structure and optical transitions in colloidal semiconductor nanocrystals; 3.1 Introduction; 3.2 Foundational concepts; 3.3 A simple model.

3.4 Experimental evidence for quantum confinement3.5 Engineered quantum dot structures; 3.6 Advanced theoretical treatments; 3.7 Atomistic approaches; 3.8 Current challenges and future outlook; 4 Charge and energy transfer in polymer/nanocrystal blends; 4.1 Introduction; 4.2 A brief history of QD/polymer optoelectronics; 4.2.1 Quantum dot light emitting diodes (QD-LEDs)- size-tunable emission across the spectrum; 4.2.2 Quantum dot photovoltaics (QD-PV) and photodetectors- converting photons to electrons; 4.2.2.1 QD-PVs; 4.2.2.2 Quantum dot photodetectors.

4.3 The QD-organic interface- ligands and more4.3.1 Ligands; 4.3.2 Energetics; 4.3.2.1 Charge transfer and Förster resonance energy transfer (FRET) in QD-LEDs; 4.3.2.2 Type II heterojunctions and charge transfer in QD-PVs; 4.4 Conclusion and future outlook; 5 Multiple exciton generation in semiconductor quantum dots and electronically coupled quantum dot arrays for application to third-generation photovoltaic solar cells; 5.1 Introduction; 5.2 Relaxation dynamics of photogenerated electron-hole pairs in QDs; 5.2.1 Transient absorption spectroscopy (TA); 5.3 Multiple exciton generation (MEG).

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