Performance variations and recovery effects in dye sensitized solar cells during long term exposure to natural winter conditions

Syed Hashmi, Peter Lund

Research output: Contribution to conferencePaperScientific

Abstract

We report here on performance tests of dye sensitized solar cells in cold outdoor conditions with temperatures down to -30 °C. Two different types of DSSCs: traditional thermally platinized counter electrode and carbon composite counter electrode based dye sensitized solar cells were installed on a vertical window in Finland and exposed for a period of about 3 months. Photovoltaic performance (IV) and electrochemical impedance spectroscopy (EIS) measurements were performed in regular intervals of the cells. Increase in the cell resistance of the DSSCs with thermally platinized counter electrodes significantly affected the fill factor and reduced the efficiency by 12%. The EIS investigations revealed an increase in charge transfer resistance for thermally platinized counter electrodes whereas the carbon composite counter electrode based DSSC exhibited much stable performance and their overall efficiency marginally affected.
Original languageEnglish
Pages1101 - 1110
Number of pages12
DOIs
Publication statusPublished - 2015
EventEuropean Photovoltaic Solar Energy Conference and Exhibition - Congress Center Hamburg, Hamburg, Germany
Duration: 14 Aug 201521 Aug 2015
Conference number: 31

Conference

ConferenceEuropean Photovoltaic Solar Energy Conference and Exhibition
Abbreviated titleEU PVSEC
Country/TerritoryGermany
CityHamburg
Period14/08/201521/08/2015

Keywords

  • carbon
  • stability
  • dye sensitized solar cells
  • composites
  • winter and counter electrodes

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