liu.seSearch for publications in DiVA
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Light trapping in thin film organic solar cells
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
2014 (engelsk)Inngår i: Materials Today, ISSN 1369-7021, E-ISSN 1873-4103, Vol. 17, nr 8, s. 389-396Artikkel, forskningsoversikt (Fagfellevurdert) Published
Abstract [en]

A major issue in organic solar cells is the poor mobility and recombination of the photogenerated charge carriers. The active layer has to be kept thin to facilitate charge transport and minimize recombination losses. However, optical losses due to inefficient light absorption in the thin active layers can be considerable in organic solar cells. Therefore, light trapping schemes are critically important for efficient organic solar cells. Traditional light trapping schemes for thick solar cells need to be modified for organic thin film solar cells in which coherent optics and wave effects play a significant role. In this review, we discuss the light trapping schemes for organic thin film solar cells, which includes geometric engineering of the structure of the solar cell at the micro and nanoscale, plasmonic structures, and more.

sted, utgiver, år, opplag, sider
Elsevier, 2014. Vol. 17, nr 8, s. 389-396
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-103929DOI: 10.1016/j.mattod.2014.05.008ISI: 000344209800018OAI: oai:DiVA.org:liu-103929DiVA, id: diva2:693135
Tilgjengelig fra: 2014-02-03 Laget: 2014-02-03 Sist oppdatert: 2017-12-06bibliografisk kontrollert
Inngår i avhandling
1. Chargeand Light Management in Organic Solar Cells
Åpne denne publikasjonen i ny fane eller vindu >>Chargeand Light Management in Organic Solar Cells
2014 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Solar cells based on organic materials are extensively investigated both in academia and industry, owing to their potential of being inexpensive, lightweight, flexible and suitable for roll-to-roll production. Performance of organic solar cells has been rapidly improving, and the state of the art organic solar cells have an efficiency over 10%.

This thesis aims to provide a comprehensive study of device engineering and device physics of organic solar cells. The ambition has been to investigate and optimize the conditions for light in-coupling and charge extraction in organic solar cells with alternative geometries. The ultimate goal is to propose methods that could potentially get the power conversion efficiency of organic solar cells with industrially compatible geometries over the current limit of 10%.

To achieve such a goal, we employed a conjugated polymer as an interface modifier to improve the surface and electrical properties of substrate electrodes for solar cells with active layers based on blends containing conjugated polymers and fullerenes. A possibility of improving photovoltaic performance of easily fabricated reverse geometry solar cells (bottom metal cathode/active layer/top  transparent anode) has been demonstrated via this simple interface modification. Systematic investigations revealed that the enhanced device performance was not only related to the modified active layer/electrode interface but also changes in the bulk of the active layer. Consequently, the device performance of a reversed solar cell was found to be as good as that of a standard solar cell. The understanding of the effects of the interlayer modification on the performance of reversed solar cells, and the methodology provided in this thesis is a guideline for further studying and developing interface materials for highly efficient organic solar cells.

An ITO electrode was further converted into a cathode by the polymer interlayer to construct semi-transparent solar cells with great potentials for building integrated photovoltaic applications. By stacking semi-transparent solar cells on top of each other, we showed that light can be more efficiently harvested compared to a conventional architecture solar cell. It has also been demonstrated that semitransparent solar cells combined with macroscopic light trapping elements can also be highly efficient.

However, this thesis is not only about papers that I have published as a graduate student. The first five chapters have been included to provide background in the field of organic photovoltaics.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2014. s. 79
Serie
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1567
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-103930 (URN)978-91-7519-419-6 (ISBN)
Disputas
2014-03-07, Planck, Fysikhuset, Campus Valla, Linköpings universitet, Linköping, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2014-02-03 Laget: 2014-02-03 Sist oppdatert: 2014-02-03bibliografisk kontrollert

Open Access i DiVA

fulltext(2333 kB)493 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2333 kBChecksum SHA-512
1b3f50027a4cd9aaa46ff1efaa414d9d86405ff89912c7da100a1b02d5165e496c6b1bc61c7818bea955338c59272681d3f2030f5d569c3e5aeeec05c6ac3f5a
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Tang, ZhengTress, WolfgangInganäs, Olle

Søk i DiVA

Av forfatter/redaktør
Tang, ZhengTress, WolfgangInganäs, Olle
Av organisasjonen
I samme tidsskrift
Materials Today

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 493 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 615 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf