59 datasets found

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...

Our research aims to develop plastic films that change the colour of the light that passes through them, not by absorbing certain wavelengths of light, as a simple colour filter...

Polymer solar cells (PSCs) open up new perspectives in the solar cell market. The morphology of the active layer of PSCs plays a crucial role on the corresponding device’s...

The aim of this project is to develop an understanding of the relationships between the processing, nanoscale structure and device performance of bulk heterojunction,...

The aim of our experiment is to understand the link between interfacial width and the photophysics at the interface to the operation of a polymer solar cell. We propose to...

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...

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

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

We would like to evaluate the vertical depth concentration profile for a blend of two materials that make a relatively high efficiency polymer solar cell device. Measurements of...

We propose to characterise the vertical component distribution for polymer:fullerene blend Organic Photovoltaic (OPV) films, which have been processed using environmentally...

We have recently demonstrated, using neutron reflectivity in combination with other techniques, that in organic photovoltaic devices (OPVs) the additive 1,8-diiodooctane (DIO)...

In Sheffield, 9% efficient organic solar cells have been made using a new non-fullerene acceptor called ITIC, when blended with semiconducting polymers. GIWAXS measurements have...

This proposal is a continuation proposal (previous RB 1110285) utilising the Offspec instrument and is aimed at further understanding the utility of the spin echo grazing...

The objective of this experiment is to use neutron reflectivity to study the surface structure and determine chemical depth profiles of Perflouropolyether-PDMS films in air and...

We propose a high-pressure powder neutron diffraction study of the archetypal donor-acceptor complexes (CD3)3N...I2 and (CD3)3N...ICl . These are the simplest structurally...

The aim of this project is to develop an understanding of the relationships between the processing, nanoscale structure and device performance of bulk heterojunction,...

Polymer solar cells (PSCs) open up new perspectives in the solar cell market. The morphology of the active layer of PSCs plays a crucial role on the corresponding device’s...

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 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...