Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Recombination losses in organic solar cells: Study of recombination losses in organic solar cells by light intensity-dependent measurements
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Easy manufacturing, light weight and inexpensive materials are the key qualities of organic solar cells that makes them a highly researched area. To make organic solar cells adequate for the market, the efficiency of power conversion has to increase further, and the lifetime of organic solar cells has to improve. Avoiding recombination losses is a piece in the puzzle that can make organic solar cells more efficient. Organic solar cells with two different hole transport layers were therefore examined by I-V measurements. It was found that the organic solar cell with MoO3 as the HTL possesses a higher current density in both the reverse region and forward region. The higher current density in both regions points towards a less successful blocking of electrons travelling to the anode (reverse region) and a better ability to transport holes from the active layer to the anode. Insight to different state of recombination was also found from the slope values in the Voc and Jsc as a function of light intensity plots. It was concluded that both solar cells experience a dominant monomolecular recombination under short circuit condition and evolved into bimolecular recombination under open circuit condition. However, the cell with CuSCN showed a more dominant bimolecular recombination, which was shown from a slope closer to one unity kT/q in the Voc as a function of light intensity plot.

Place, publisher, year, edition, pages
2018. , p. 29
Keywords [en]
Organic solar cells, recombination losses
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kau:diva-68584OAI: oai:DiVA.org:kau-68584DiVA, id: diva2:1233204
Subject / course
Physics
Educational program
Engineering: Engineering Physics (300 ECTS credits)
Presentation
2018-06-08, 21D302, Karlstad, 20:12 (English)
Supervisors
Examiners
Available from: 2018-08-06 Created: 2018-07-16 Last updated: 2018-08-06Bibliographically approved

Open Access in DiVA

Solar cells(2036 kB)9 downloads
File information
File name FULLTEXT01.pdfFile size 2036 kBChecksum SHA-512
6fed624de5fab953fb968172a4759ed31192194512e45aaede3c21aecc142a7b50f6bda0fd65910ace2d4a97995a1ea21f5aeedbb6b8656a480c4d40e5932be8
Type fulltextMimetype application/pdf

By organisation
Department of Engineering and Physics (from 2013)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 9 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 24 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf