Ligand conformation at semiconductor nanoparticle surfaces for high-efficiency photovoltaics

DOI

The efficiency of silicon solar cells is limited to 29%. One possible way of breaking this limit uses a process called singlet fission, converting a high energy photon into two lower energy photons. An electron-hole pair is created in an organic semiconductor; this then splits into two lower energy electron-hole pairs. If these can be transferred to an inorganic semiconductor nanocrystal, they can recombine to emit lower energy photons. The efficiency of this process depends critically on the nature of the interface between the nanoparticle and the organic material. The nanoparticles have short organic groups - ligands –attached to their surfaces. Our experiment will determine how many of these ligands there are, how they are arranged, and how easily they can replaced by other groups. The resulting insights will help us to design processing routes to put this idea into practise.

Identifier
DOI https://doi.org/10.5286/ISIS.E.85007962
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/85007962
Provenance
Creator Dr Gabriel Bernardo; Professor Richard Jones; Professor Richard Friend; Dr Andrew Parnell; Dr Akshay Rao; Dr Steve King; Professor Neil Greenham; Dr Tom Jellicoe; Dr Daniel Toolan; Dr Nathaniel Davis; Dr Andrew Pearson; Dr Mike Weir
Publisher ISIS Neutron and Muon Source
Publication Year 2020
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2017-10-12T08:00:00Z
Temporal Coverage End 2017-10-13T08:33:03Z