IQDOTPV

All-Inorganic Quantum Dot Films for Photovoltaic Applications

Coordinatore	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH    more  Organization address address: Raemistrasse 101 city: ZUERICH postcode: 8092 contact info Titolo: Prof. Nome: Maksym Cognome: Kovalenko Email: send email Telefono: +41 44 633 41 56
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	192˙622 €
EC contributo	192˙622 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2012-IIF
Funding Scheme	MC-IIF
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-09-01   -   2015-08-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH  Organization address address: Raemistrasse 101 city: ZUERICH postcode: 8092 contact info Titolo: Prof. Nome: Maksym Cognome: Kovalenko Email: send email Telefono: +41 44 633 41 56	CH (ZUERICH)	coordinator	192˙622.20

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 Obiettivo del progetto (Objective)

'Great progress has been achieved over the last 20 years in the colloidal synthesis of semiconductor, metallic, and magnetic nanocrystals (NCs). The state-of-the-art synthetic approaches allow obtaining inorganic nanostructures with high degree of crystallinity and precisely engineered compositions, sizes, and morphologies, while solubility in nonpolar solvents provides remarkable processability of colloidal nanomaterials. In the present time, research efforts are largely focused on the implementation of colloidal nanocrystals in a broad spectrum of electronic and optoelectronic devices. Highly promising is the use of colloidal semiconductor nanocrystals (also known as colloidal quantum dots, QDs) in solar cells with the theoretical potential to overcome the Shockley–Queisser limit of 31-41% power efficiency for single bandgap solar cells. Recently, Sargent et.al. have shown that electronic properties of colloidal NC films currently limit performance of nanocrystal-based solar cells. Efficiency of the carriers’ transport through NCs in the NC solid strongly depends on NC environment. However, NCs prepared by traditional colloidal techniques are capped with long-chain hydrocarbon ligands (“organic capping”) introducing insulating layers around each NC. Significantly improved charge transport has been achieved by using shorter organic linking molecules or by partial removal of ligands by hydrazine treatment. Yet small and volatile organic molecules cause instabilities in solid state devices. Recently, an important breakthrough has been made through the use of small and chemically simple inorganic ligands such as discovery of metal-chalcogenide complexes and metal-free inorganic ligands. The goal of this project is to design inorganic surrounding for colloidal nanocrystals that will lead to semiconductor NC solids with predictable optoelectronic characteristics and eventually to novel absorber layers for all-inorganic, stable and efficient solar cells.'