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Thin Film Morphology in Polymer-Fullerene Bulk-Heterojunctions Materials
A promising class of materials for solar energy is conjugated polymer (CP)-fullerene mixtures. They offer the future potential for replacing current inorganic systems with... -
A study of the interfacial width and its effects on fundamental solar cell ba...
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... -
Phase retrieval for non-trivial systems
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... -
Probing bulk heterojunction (BHJ) thin films with graded morphologies using SANS
This projects aims to contribute to a better understanding of the relationship between processing conditions, active layer morphology and device performance in polymer solar... -
A new plastic phase in PCBM from low-energy inlelastic neutron scattering
Phenyl-C61-butyric acid methyl ester (PCBM) is a fullerene-based material of high technological interest due to its use in organic solar photovoltaic cells. A better... -
Morphology in Polymer-Fullerene Bulk-Heterojunctions Materials
A promising class of materials for solar energy is conjugated polymer (CP)-fullerene mixtures. They offer the future potential for replacing current inorganic systems with... -
Solid state processing of conjugated polymer-fullerene blends
Blends of fullerenes with conjugated polymers (CP), such as PCBM-P3HT blends, are being extensively investigated for polymer photovoltaic applications. We have been studying the... -
Composition depth profiling of novel spray-coated plastic solar cell materials
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... -
Non fullerene organic photovoltics
Organic solar cells (OPVs) are photovoltaic devices that can convert the energy from sunlight into electricity and have attracted much attention as a viable green energy source... -
Phase retrieval for non-trivial systems
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... -
Interfacial structure in self-assembling conjugated polymer photovoltaic devices
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... -
Determining the nanostructure of PCBM in thin film photovoltaics
Organic photovoltaics (OPVs) are a low cost alternative to existing photovoltaic materials. The efficiency of OPVs is steadily increasing towards the point where their cost per... -
Dynamics and phase behaviour of Fullerol using low energy neutron spectroscopy
Fullerene and its derivatives have become materials of great technological interest for a number of reasons including their success as electron acceptors in organic photovoltaic... -
Comparison Phase-object approximation and dynamical scattering theory
X-ray, electron and neutron scattering techniques have been used for the structural characterization of surfaces and embedded morphologies. Several theories have been developed...
