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Identifier 000430480
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Title Device engineering of organic and organic-inorganic solar cells
Alternative Title Μηχανική συσκευών οργανικών και οργανικών -ανόργανων φωτοβολταϊκών κελιών
Author Κρασσάς, Μύρων
Thesis advisor Κιοσέογλου, Γεώργιος
Reviewer Κυμάκης, Εμμανουήλ
Πετρίδης, Κωνσταντίνος
Σταθάτος, Ηλίας
Κουτσολέλος, Αθανάσιος
Χώχος, Χρήστος
Στρατάκης, Εμμανουήλ
Abstract Organic solar cells are consider a very promising technology among the third generation solar cells. A great tailback of the organic solar cell is the small exciton diffusion length and the high binding energy of the exciton. So the first two works are based on the incorporation of a third component in the photoactive layer in order to increase the number of dissociated exciton. The presence of the third component led to an increasement of the current and the enhancement of the PCE of the photovoltaic device. In the second part, in collaboration with another group, the study of low band gap polymers is shown. The OPVs absorb in the visible light of the solar spectrum, leaving the near infrared unexploited. LBG polymers, although they have small efficiencies, can be added in the photoactive layer of the device and act as a second absorber. The result will be an increasement of the absorption spectrum further from the visible and into the infrared region, which will lead in an enhancement of the current and finally of the PCE of the device. In the final part, the stability of two different polymer was studied, P3HT and PCDTBT, two very well-known polymers in world of OPVs. Both collaborations aimed to study the effect that polymer properties, device structure (inverted/conventional and buffer layers) and encapsulation procedure have to the device stability and lifetime, and used as guidance for the fabrication of stable OPVs based on those two polymers.
Language English
Subject Bulk heterojunction
Organic photovoltaics
Organic polymers
Small molecule
Ternary blend
Ετεροδομή
Μικρό μόριο
Οργανικά πολυμερή
Οργανικά φωτοβολταϊκά
Τριαδική διάταξη
Issue date 2020
Collection   Faculty/Department
  Type of Work--Doctoral theses
Permanent Link https://elocus.lib.uoc.gr//dlib/0/f/2/metadata-dlib-1594283183-811564-17897.tkl Bookmark and Share
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