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Energy transfer in the system of PbS quantum dots

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Vorsina, Tatiana
dc.date.accessioned 2016-08-26T09:06:39Z
dc.date.available 2016-08-26T09:06:39Z
dc.date.issued 2016-08-24
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/21613
dc.description.abstract This work is devoted the investigation of the process of nonradiative energy transfer via FRET mechanism between lead sulphide QDs of different size in the porous matrix and on the glass surface at both room and decreased temperatures. As a result, we observed quenching of photoluminescence (PL) for donors together with flare-up of PL of acceptors, which was accompanied by significant increasing of lifetimes of acceptors up to values characteristic for donors. This unexpected effect can be explained using three-level model which based on a complex energy structure of PbS quantum dots-donors, which are involved in the energy transfer. The observed effect can lead to a significant change in the dynamic characteristics of the charge carriers in quantum dot solar cells. en
dc.format.extent 50+0
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Energy transfer in the system of PbS quantum dots en
dc.type G2 Pro gradu, diplomityö fi
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.subject.keyword quantum dots en
dc.subject.keyword energy transfer en
dc.subject.keyword solar cells en
dc.subject.keyword luminescence en
dc.identifier.urn URN:NBN:fi:aalto-201608263069
dc.programme.major Micro- and Nanosciences fi
dc.programme.mcode ELEC3037 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Sopanen, Markku
dc.programme NanoRad - Master’s Programme in Nano and Radio Sciences (TS2013) fi
dc.location P1 fi
local.aalto.openaccess yes
dc.rights.accesslevel openAccess
local.aalto.idinssi 54281
dc.type.publication masterThesis
dc.type.okm G2 Pro gradu, diplomityö

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