Skip to ContentSkip to Navigation
About usNews and EventsNews articles

Efficiency enhancement of polymer fullerene solar cells

23 October 2009

Promotie: M. Lenes, 16.15 uur, Academiegebouw, Broerstraat 5, Groningen
Proefschrift: Efficiency enhancement of polymer fullerene solar cells
Promotor(s): prof.dr. P.W.M. Blom
Faculteit: Wiskunde en Natuurwetenschappen
Contact: Martijn Lenes, tel. +34691163518 (werk), e-mail: martijn.lenes@uv.es

Efficiency enhancement of polymer fullerene solar cells

Polymer solar cells are considered to be a promising candidate for a flexible, light weight, large area, and most importantly low cost energy source. Despite many progress is made in understanding and improving of this type of solar cell, the efficiencies achieved are still too low for large scale commercialization. Martijn Lenes describes in his thesis how he analyzed several critical loss mechanism in solar cells, based on a polymer as an electron donor and a fullerene as an electron acceptor and he gives strategies to improve the efficiency. Several of these strategies are used in the development of new materials and have been tested. The fabricated cell are tested by him and analyzed with the current models which exist for these type of devices. In some cases he adapted the existing models to account for newly observed phenomenon. He shows that in the optimization of the energy levels of the used materials a large improvement in efficiency can be obtained. In some cases this resulted in the ability of the solar cell to absorb a larger part of the solar spectrum, in another case this resulted in an enhanced output voltage of the solar cell. In the latter case, using a new fullerene resulted in a relative improvement of the efficiency of 20% compared to the model polymer:fullerene system, a breakthrough in performance.

Last modified:15 September 2017 3.38 p.m.

More news

  • 02 April 2019

    ‘Sense of loss drives voting behaviour’

    ‘Everybody here loves that academia has returned to Friesland. We teach, carry out research and think along about solutions to problems that are relevant for Friesland,’ says Caspar van den Berg, Professor of Global and Local Governance at the UG Campus...

  • 29 March 2019

    Royal Decoration for Prof. Jeff De Hosson

    On Friday 29 March, Prof. J.Th.M. De Hosson has been awarded the Royal Decoration of Knight of the Order of the Dutch Lion. He was presented with this decoration by acting Mayor Koos Wiersma of the Westerkwartier municipality directly after his valedictory...

  • 27 March 2019

    Local levies for home owners rise by 2.7%

    Households that own their own homes will on average pay 2.7% more in municipal, provincial and water board taxes. Municipal taxes are set to rise by 3.5% on average, the water rates by 2.3% and the provincial taxes by 0.3%. This is revealed by the Atlas...