Light Trapping Enhancement by Silver Nanoantennas in Organic Solar Cells

dc.contributorAalto Universityen
dc.contributor.authorVoroshilov, Pavel
dc.contributor.authorOvchinnikov, Victor
dc.contributor.authorPapadimitratos, Alexios
dc.contributor.authorZakhidov, Anvar
dc.contributor.authorSimovski, Constantin
dc.contributor.departmentDepartment of Electronics and Nanoengineering
dc.contributor.departmentAalto Nanofab
dc.contributor.departmentUniversity of Texas at Dallas
dc.description.abstractIn this paper, we study experimentally the enhancement of parameters of a typical organic thin film solar cell (OSC) achieved by an originally proposed light trapping structure (LTS). Our LTS is an array of silver nanoantennas supporting collective modes, what provide subwavelength light enhancement in the substrate. Low losses in the metal result from the advantageous optical field distribution that is achieved in the broad range of wavelengths. We study the enhancement of all the main photovoltaic (PV) parameters observed in OSC with our LTS, such as power conversion efficiency (PCE), which is effectively increased by 18%, fill factor (FF), that can also be effected positively and short-circuit current Isc improvement. Although the Ag nanoantenna occupies up to 40% of the photoactive OSC area, it provides the nearly twice enhanced optical absorption, resulting in overall higher Isc and FF. Improvements of the optical and electrical design of OSC architectures are discussed for further enhancement of performance.en
dc.description.versionPeer revieweden
dc.identifier.citationVoroshilov , P , Ovchinnikov , V , Papadimitratos , A , Zakhidov , A & Simovski , C 2018 , ' Light Trapping Enhancement by Silver Nanoantennas in Organic Solar Cells ' , ACS Photonics , vol. 5 , no. 5 , pp. 1767-1772 .
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dc.relation.ispartofseriesACS Photonicsen
dc.relation.ispartofseriesVolume 5, issue 5en
dc.subject.keywordsmall molecules
dc.subject.keywordorganic solar cells
dc.subject.keywordlight trapping
dc.subject.keyworddomino modes
dc.titleLight Trapping Enhancement by Silver Nanoantennas in Organic Solar Cellsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi