European Sommer School on Quantum Solar Energy Conversion
|
| |
|
|
Chairman's Message
Quantum solar energy conversion deals with all aspects of solar energy
conversion, where not only the energy current as a whole but the energy
of single photons in particular is important. Such processes occur in photosynthesis,
in photochemistry and in photovoltaics. They produce chemical and electrical
energy. This summer school will concentrate on principles of quantum solar
energy conversion in semiconductor physics, photochemistry and photosynthesis.
Their common aspects are processes of charge transfer across interfaces.
The driving forces and the selectivity of the interfaces which govern this
charge transfer are of particular interest. The participation of scientists
and students in various fields shall bridge the gap between disciplines,
which are used to different ways of describing very similar principles
and processes. An overview is given over each field and new developments
in research and understanding will be presented.
Prof. Peter Würfel
Institut fuer angewandte Physik
Universität Karlsruhe
D - 76128 Karlsruhe
Fax: +[49] (721) 607593
email:
Peter.Wuerfel@physik.uni-karlsruhe.de
Program of the Summerschool
Monday
| 08:00 | | Breakfast |
| 08:30 | Würfel | Introduction |
| | Basics |
| | Thermodynamics of energy
conversion |
| 08:45 | Würfel | Principles of
converting heat radiation into chemical or electrical energy, limits for efficiencies in
general and for quantum systems in particular |
| | Semiconductors |
| 09:30 | Fuhs | Energy bands, doping,
Fermi-distribution, pn- junction in the dark, distribution of electrical potential,
capacitance |
| 10:30 | | Coffee Break |
| 11:00 | Kiess | Optical properties of
semiconductors, generation and recombination of electrons and holes,
quasi-Fermi-distributions, recombination via defects |
| 12:00 | Würfel | Transport of
electrons and holes, structures for charge separation, pn-junction under illumination,
I-V characteristic, surface states |
| 13:00 - | 16:45 | Individual
discussions |
| 16:45 | Fuhs | Semiconducting
materials for photovoltaics |
| 17:30 | Hodes | Preparation of
semiconductor thin films for photovoltaics |
| 18:30 | | Dinner |
Tuesday
| 08:00 | | Breakfast |
| 08:30 | Sariciftci | Organic
semiconductors for photovoltaics |
| | Electrolytes |
| 09:30 | Meissner | Redox systems,
reference electrodes, ion transport, electron states in an electrolyte |
| 10:30 | | Coffee break |
| 11:00 | Meissner | Semiconductor/el
ectrolyte interfaces: potential distribution, electron transfer, chemical and
electrochemical equilibria, corrosive reactions, state of the art of semiconductor /
electrolyte junctions |
| | Energy
Conversion |
| | Chemical reactions and charge
separation at interfaces in photosynthesis |
| 12:00 | Kurrek | Bacterial and plant
photosynthesis, comparison of Calvin and Krebs cycle, chemistry of
photosynthesis |
| 13:00 - | 16:45 | Individual
discussions |
| 16:45 | Schaafsma | Structure and
processes of charge separation and energy transfer in photosynthetic reaction centers
and - antennae.
Photovoltaics of molecular and organized organic homo- and heterojunctions:
the antenna/photoactive layer interface |
| | Charge separation processes in
photovoltaics |
| 17:30 | Kiess | State of the art of
photovoltaics in Silicon solar cells |
| 18:30 | | Dinner |
Wednesday
| 08:00 | | Breakfast |
| 08:30 | Fuhs |
State of the art of photovoltaics in thin film homo- and heterojunction
solar cells |
| 09:30 | Schaafsma |
Interfacial electron and energy transfer in dye sensitized semiconductor
solar cells, interaction of dyes with the semiconductor interface |
| 10:30 | | Coffee break |
| 11:00 | Fuhs | Environmental
aspects of solar energy conversion technologies |
| | Experimental techniques |
| 12:00 | Meissner | Measurement of
lifetimes and mobilities |
| 13:00 - | 16:45 | Individual
discussions |
| 16:45 | Hodes | Characterisation of
semiconductor thin films |
| 17:30 | Würfel | Room
temperature luminescence as a qualifier for solar energy
conversion |
| 18:30 | | Dinner |
Thursday
| | Special
topics |
| 08:00 | | Breakfast |
| 08:30 | Meissner | New solar cell
structures: Spheral, monograin, nanoporous solar cells |
| 09:30 | Hodes | Nanocrystalline
materials for solar energy conversion |
| 10:30 | | Coffee break |
| 11:00 | Kurrek |
Primary events in photosynthesis - the photosynthetic reaction
center |
| 12:00 | Schaafsma |
Optical spectroscopy of primary photophysical processes, intermolecular
interactions and structural properties of thin organic films in solar
cells |
| 13:00 - | 16:45 | Individual
discussions |
| 16:45 | Kurrek |
Present status of photosynthetic processes as studied by time resolved
EPR spectroscopy: photoinduced downhill electron transfer, charge separation,
unidirectionality, efficiency |
| 17:30 | Würfel | Energy
conversion with hot electrons from impact ionisation, the importance of isoenergetic
electron transfer through narrow-band semiconducting electrodes |
| 18:30 | | Dinner |
Friday
| 08:00 | | Breakfast |
| 08:30 | Meissner |
Mapping of surface energy contours with the tunneling microscope. From
photocopier to organic solar cells: phthalocyanine and perylene dye
films |
| 09:30 | Sariciftci |
Photophysics and photovoltaic applications of conjugated
polymers |
| 10:30 | | Coffee break |
| 11:00 | Kiess | Light trapping
structures for improved light absorption |
| 12:00 | Fuhs | New developments
in thin film solar cells |
| 13:00 - | 16:45 | Individual
discussions |
| 16:45 | | Summary and plenary
discussion |
| 18:30 | | Dinner |
Saturday
|
|
|
|
Last updated November 4, 1998
European Society for Quantum Solar Energy Conversion
E-mail: secretary.general@quantsol.org |