64 datasets found

We have recently demonstrated, using small angle neutron scattering in combination with other techniques, that in organic photovoltaic devices (OPVs) the additive...

This proposal is part 2 of a set of two proposals on Offspec aimed at understanding some of the effects seen in off-specular data and in particular the use of the spin echo...

We have recently demonstrated that in organic photovoltaic devices (OPVs) the additive 1,8-diiodooctane (DIO) largely remains in the film after spin-coating acting as a...

We wish to develop a rational understanding of the mechanisms underlying the way water soluble polymer brushes - in particular those of polyethylene oxide/polyethylene glycol -...

The key to the use of polymer vesicles as effective molecular delivery systems is in the ability to efficiently encapsulate a molecular payload within the vesicle. We would like...

We propose to study thin-film blends of the polymer:fullerene system PTB7:PC70BM using neutron reflectivity (NR). This system currently exhibits the highest power conversion...

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...

We propose to study a range of new lower energy gap organic photovoltaic (OPV) materials deposited by spray coating using neutron reflectivity. The new materials to be studied...

This projects aims to contribute to a better understanding of the relationship between processing conditions, active layer morphology and device performance in polymer solar...

PffBT4T-2OD is one of the most recent and most successful low bandgap conjugated polymers used in organic photovoltaics - PffBT4T-2OD based OPV devices have power conversion...

Organic solar cells are an exciting, clean energy generating technology offering low-cost, scalable fabrication routes. New non-fullerene acceptors such as ITIC produce highly...

For polymer vesicles to act as effective molecular delivery systems we must efficiently encapsulate a molecular payload within the vesicle. We would like to use neutron...

We propose to use grazing incidence small angle neutron scattering (GISANS) to probe the structure, order and crystallinity of organic solar cell blends. Importantly GISANS...

Nature frequently uses charged, weak-polyelectrolyte brushes at interfaces to control surface function and properties; surface wetting, lubrication, to limit deposition of...

We have recently demonstrated, using small angle neutron scattering in combination with other techniques, that in organic photovoltaic devices (OPVs) the additive...

Neutron reflectometry (NR) is a very powerful technique for the study of thin layers. It is able to measure composition, thickness and roughness and is a very penetrating...

Solar cell materials are routinely used in many applications and many studies are ongoing which have three principle objectives. To increase the efficiency, reduce the cost of...

In organic solar cells the efficiency can be increased by using an additive. However in organic photovoltaics what the use of additives does to the underlying structure is not...

The proposal aims to determine the degree of interfacial mixing and roughness at an interface between two conjugated polymers, as part of a broder program to understand how to...

The world wide trade in chemicals is shipped via large tankers. These tankers have their holds coated in epoxy resin based systems. The major issue in their use is the waste and...