7 de fevereiro de 2008

Solar Cells - Interview with Prof. Dr. Kees Hummelen

A Thomson, em um artigo que faz parte da seção de SPECIAL TOPICS, faz uma entrevista ao Prof. Dr. Kees Hummelen, considerado um dos autores mais citados na área de Células Solares Orgânicas.


According to our Special Topics analysis on Solar Cells, the scientist whose work ranks at #3, with 48 papers cited a total of 2,854 times, is Prof. Dr. Kees Hummelen of the University of Groningen, The Netherlands. Prof. Dr. Hummelen is also a co-author on the paper ranked at #1 in this topic, "Plastic solar cells," (Adv. Funct. Mater. 11[1]: 15-26, February 2001). In Essential Science IndicatorsSM, Prof. Dr. Hummelen’s work can be found in the fields of Materials Science and Chemistry. Prof. Dr. Hummelen has been a Full Professor in Chemistry at the University of Groningen since 2000, and is also the Chief Scientific Officer of Solene BV. In the interview below, he talks with us about his highly cited work.


Solar Cells - Interview with Prof. Dr. Kees Hummelen

A novel polymer nanotube composite for photovoltaic packaging applications

J Ravichandran, A G Manoj, J Liu, I Manna and D L Carroll
2008 Nanotechnology 19 085712 (5pp)

Abstract:

Packaging of organic photovoltaic (OPV) devices is an important issue
which has been rarely addressed in the past. With the recent reports of high efficiency organic photovoltaics (6%), the need to produce materials which can effectively protect the device from
degradation due to exposure to oxygen, moisture and radiation is pressing. We report a novel Saran (a co-polymer of vinylidene chloride and acrylonitrile) based polymer nanotube composite, which shows high transparency in the visible region, good barrier properties and thermal stability, for use as an encapsulant for OPV devices. Different loadings of Saran and boron nitride nanotubes were taken and the composites were prepared to optimize the composition of the composite. UV-visible spectroscopy, infra-red spectroscopy and thermal analysis were used to characterize the composite. The barrier properties of the composite were tested on poly(3-hexylthiophene), which is used in high efficiency OPV devices.


Full text PDF:
http://www.iop.org/EJ/article/-alert=19995/0957-4484/19/8/085712/nano8_8_085712.pdf