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Projects: Projects for Investigator
Reference Number EP/R023840/1
Title Carrier Selective Layers: Enabling the True Potential of Nanostructured Photovoltaics
Status Completed
Energy Categories Renewable Energy Sources(Solar Energy, Photovoltaics) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Physics) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr S Mokkapati
No email address given
Physics and Astronomy
Cardiff University
Award Type Standard
Funding Source EPSRC
Start Date 01 April 2018
End Date 22 January 2020
Duration 22 months
Total Grant Value £279,442
Industrial Sectors Energy
Region Wales
Programme Energy : Energy
Investigators Principal Investigator Dr S Mokkapati , Physics and Astronomy, Cardiff University (100.000%)
  Industrial Collaborator Project Contact , Oxford Instruments plc (0.000%)
Web Site
Abstract I aim to demonstrate light weight, flexible solar cells with high efficiency to cost ratio using compound semiconductors for niche applications like wearable electronics and un-manned, light weight drones.High power conversion efficiency in solar cells can be achieved by controlling the (i) light absorption and emission characteristics of the absorber and (ii) separation of photo-generated electron-hole pairs, to generate current. Nanotechnology has emerged as a powerful tool to control the light-semiconductor interaction and nanostructured semiconductors with absorption and emission characteristics suitable for high efficiency solar cells have already been demonstrated. Nanostructured semiconductors also reduce the volume of semiconductor material required for high efficiency solar cells, providing a pathway to light weight and flexible devices.Charge separation and extraction from these nanostructured semiconductors is currently limiting the efficiency of nanostructured solar cells. Conventionally, a p-n junction is used to separate photo-generated electrons and holes in a solar cell. It is, however, very challenging to form good quality p-n junctions in nanostructures. In this project, I propose a novel mechanism for charge extraction from nanostructures that eliminates the need to form p-n junctions, to achieve the high power conversion efficiencies promised by nanostructured solar cells.This project will benefit research communities worldwide interested in nanostructured photovoltaics or the third-generation photovoltaic technologies and is the first step towards establishing a new research programme on nanostructured compound semiconductor photovoltaics in the UK.In addition to uncovering fundamental physics at the nanoscale, this project paves the way towards sustainable and green energy generation by addressing the important issue of efficiency to cost ratio of photovoltaics. The technology developed during this project will generate intellectual property related to nanostructured PV. I will work with Cardiff University's commercial development team and Cardiff University's patent holding company, University College Cardiff Consultants Limited (UC3) to protect any IP resulting from this project. I will work with the recently established Institute for Compound Semiconductors (ICS) and Innovate UK's Advanced Materials, High Value Manufacturing and Compound Semiconductor Catapult (CSC) programmes to transfer the research outcomes to industry, creating technological jobs in the energy sector in the UK.

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Added to Database 16/08/18