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Third European Workshop on OPTICS FOR SOLAR ENERGY

(formerly known as Nanophotonics for Solar Energy)


The Third European Workshop on Optics for Solar Energy will review current trends and recent developments in the field of optics and nanophotonics for solar energy conversion devices. The workshop covers various topics such as (nano-)optical light management for single-junction and tandem solar cells and solar fuel devices, photon up- and down conversion, optical modelling of mono- and bifacial solar modules and energy yield calculations. The work­shop is organized by the Helmholtz Excellence Network SolarMath. We encourage the participants to not only present their latest results but also to address problems and open questions – this might help to identify possible topics for collaboration.

We organize the workshop as a hybrid event, where the speakers can present on site in Berlin or online.

5–6 October 2021

Rudower Chaussee 17
12489 Berlin, Germany

Part of Photonics Days Berlin Brandenburg 2021
Organized by the Helmholtz Excellence Network SolarMath



Tuesday, 5 October 2021

Afternoon session (15:00-18:00)

15:00 — Welcome

15:05 — Low-power photon upconversion in photonically-enhanced thin film systems
Rowan MacQueen, Helmholtz-Zentrum Berlin, Germany (on-site).

15:25 — Impact ionization and π-ton optical excitations in strongly correlated electron systems
Anna Kauch, Technical University of Vienna, Austria (online).

15:45 — Concentration on upconversion: experiments and prospects
Georgios Arnaoutakis, Hellenic Mediterranean University (online).

16:05 — Threat and/or Opportunity: Endothermic Triplet Energy Transfer for Efficient Triplet-Triplet Annihilation Upconversion
Nikita Durandin, Tampere University, Finland (online).

16:25 — Short break

16:40 — Optical losses in photoelectrochemical cells
Peter Cendula, University of Žilina, Slovakia (on-site).

17:00 — Accelerating optical simulations of nanostructured solar cells with FEM and machine learning
Martin Hammerschmidt, JCMwave, Germany (on-site).

17:20 — Optimizing metal grating back reflectors for silicon based multijunction solar cells
Peter Tillmann, Helmholtz-Zentrum Berlin, Germany (on-site).

17:40 — Final discussion

Wednesday, 6 October 2021

Morning session (10:00-12:40)

10:00 — Welcome

10:05 — Incoupling and outcoupling of light in solar cells
Nicklas Anttu, Åbo Akademi University, Finland (online).

10:25 — Internal and external photon management strategies for light-energy conversion
Rebecca Saive, University of Twente, the Netherlands (online).

10:45 — Plasmonics for Solar Fuels: Fundamentals and Devices
Giulia Tagliabue, École polytechnique fédérale de Lausanne, Switzerland (online).

11:05 — Short break

11:20 — Optics of perovskite/CIGS tandem solar cells
Marko Jošt, University of Ljubljana, Slovenia (online).

11:40 — Optimization of perovskite / silicon tandem solar cells using the GenPro4 optical model
Rudi Santbergen, Delft University of Technology, the Netherlands (online).

12:00 — Optical Simulations and Energy Yield Modelling of Perovskite-Based Tandem Photovoltaics
Uli Paetzold, Karlsruhe Institute of Technology, Germany (online).

12:20 — Outdoor performance of perovskite-based solar cells and the role of the sun spectrum in it
Mark Khenkin, Helmholtz-Zentrum Berlin, Germany (online)

Lunch break and poster session (12:40-15:00)

Afternoon session (15:00-18:00)

15:00 — Optics and materials for high-efficiency perovskite tandem solar cells
Hairen Tan, Nanjing University, China (online)

15:25 — Random Textures for Perovskite Single-Junction and Tandem Solar Cells
Christian Wolff, École polytechnique fédérale de Lausanne, Switzerland (on site).

15:50 — An update on periodically nanotextured perovskite/silicon tandem solar cells
Philipp Tockhorn, Helmholtz-Zentrum Berlin, Germany (on site).

16:15Short break

16:30 — Carrier Multiplication to Enhance Solar Cell Efficiency
Bruno Ehrler, AMOLF, the Netherlands (on site).

16:55 — Optical strategies for passive thermal management in crystalline Si modules
Vivian Ferry, University of Minnesota, United States (online).

17:20 — Upconversion: will it ever work for photovoltaics?
Bryce Richards, Karlsruhe Institute of Technology, Germany (online).

17:45 — Final discussion and closing remarks

Conference Chairs