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Invited Speakers

Monday, April 03, 14:15:

Prof. Henry Snaith, Oxford Photovoltaics

"Perovskite on Silicon Tandem Cell"

Short CV
Prof Henry J Snaith FRS is a professor of physics at Oxford University and is CSO and Founder of Oxford PV Ltd. His research is focused on developing new materials for photovoltaics and understanding and controlling the optoelectronic processes occurring within the devices and at heterojunctions. He has made a number of significant contributions to the field of photovoltaics research, with the most notable being the discovery of the remarkable PV properties of metal halide perovskites. He was awarded the institute of Physics Patterson Medal in 2012, named as one of "natures ten" people who mattered in 2013, received the Materials Research Society Outstanding Young Investigator award in 2014, elected as a member of the Royal Society in 2015, assessed to be the 2nd "most influential scientific mind" in 2016 and will be awarded the Royal Society Kavli Medal and Lecture in 2017.

Wednesday, April 05, 8:45:

Dr. Kunta Yoshikawa, KANEKA Corporation

"Exceeding Conversion Efficiency of 26% by Silicon Heterojunction Technology"

Short CV
Dr. Kunta Yoshikawa received his Bachelor, Master and Ph.D. degree of Physical Science at the Hiroshima University in 2003, 2004 and 2006 respectively. In 2006, he joined Kaneka Corporation (Japan), and initially worked on thin film silicon photovoltaic research. In 2009, he was assigned to the Kaneka European Photovoltaic laboratory which was established at the imec premises (Belgium), where he worked mainly on crystalline silicon solar cells such as heterojunction solar cells and homojunction interdigitated back contact cells. In 2013, he went back to Japan, assigned to the Photovoltaic & Thin Film Device Research Laboratories and has been leading the R&D of the next generation high efficiency silicon solar cells at Kaneka.

We have developed heterojunction interdigitated back contact solar cells with a conversion efficiency of 26.6% (designated area: 180 cm2) independently confirmed by Fraunhofer Institut für Solare Energiesysteme CalLab. Compared to our previous record efficiency (26.3%), the 0.3% absolute improvement can be regarded as ~10% reduction of remaining losses to the theoretical limit (~29%). We will discuss the analyzed cell properties together with our recent progress to predict how far we can go in reducing the remaining losses in silicon photovoltaic.

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