Graphene-functionalisation of solid-state dye sensitivity

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The photovoltaic (PV) market is currently dominated by crystalline silicon solar cells (c-SiSC), with < 21 % power conversion efficiency (PCE), but widespread use of this technologyis cost-limited. Alternatively, thin film solar cells (TFSC) can be manufactured cheaply but donot perform comparably and degrade more quickly than c-Si SC. Although recent advances inTFSC technology have been made using perovskite absorbing layers, a principle challenge inPV cell design is optimising charge collection and a significant breakthrough is required toachieve the theoretical maximum PCE. It has therefore been proposed that the unprecedentedelectronic and structural properties of graphene offer a unique opportunity for a step changeimprovement in TFSC efficiency and surface stability, through carefully engineeredincorporation of graphene into TFSC. The project aims to prove the concept of grapheneincorporation into thin film solid-state Dye Sensitised Solar Cells (ssDSC) based onperovskite, fully exploring the possible efficiency gains, as well as improvements to thesurface properties of graphene encapsulated devices. The outcomes of a successful project canbe developed to produce a step change in SC performance, providing higher PCE at lowercost than existing c-Si SC technologies, with reduced degradation.