Fraunhofer Institute for Solar Energy Systems ISESMARTLINE PV, an EU-funded project, aims to develop tin perovskite solar modules with selectable colours for specific applications, which will be realized by the Fraunhofer ISE MorphoColor® flexible technology. Significant R&D efforts in the consortium are orientated towards module fabrication on glass and flexible PET substrates with the lowest possible efficiency losses upon upscaling in comparison to single small area devices and their integration in façade elements and roof tiles.
Highly Efficient and Stable Tin Perovskite Solar Cells and Modules
SMARTLINE PV
Overview of the research and development activities of SMARTLINE PV.
Initial Situation
The MorphoColor® technology was originally developed for structured glass and is primarily used in silicon-based photovoltaics. Through a sputtered thin-film filter and microstructured substrates, MorphoColor® enables the production of highly efficient, colored modules. The latest advancement allows for application on microstructured film and aims to increase the possibilities for integrated, colored PV. While the glass-based variant is already available on the market, the film version of MorphoColor® is still in the development phase.
MorphoColor® glass-based demonstrator solar modules on display at the GlasTec exhibition.
Objective
Together with the company temicon, which specializes in micro- and nanostructures for functional surfaces, we aim to further develop the MorphoColor® technology on flexible microstructured substrates to enable lightweight and colorful perovskite modules for innovative and efficient photovoltaic solutions.
One goal is to optically adapt the sputtered coating to the tin perovskite technology to achieve optimal colors and minimize efficiency losses. The MorphoColor® technology suitable for flexible substrates should be designed to be laminated into the perovskite module technology.
Additionally, and novel to the project the MorphoColor® coating will be developed with conductive materials. In this role the MorphoColor® coating serves both as a transparent, conductive front contact and as a color filter and is integrated into the functioning solar cell which has potential for reducing the number of manufacturing steps.
Scheme of the module fabrication process envisaged within SMARTLINE-PV showing the MorphoColor® process integrated into the production.
Approach
To achieve the project goal, we first recorded the optical data of the tin perovskite solar cell and adapted the blue and terracotta-colored MorphoColor® coatings to its cell structure. For lamination tests and to test the solar module demonstrator, we tested a flexible, terracotta-colored MorphoColor® coating in solar roof tiles (see image). To achieve an integrated, conductive MorphoColor® coating, interference stacks were produced using sputtered ITO. We are currently testing perovskite material on these stack systems.
Terracotta-tile PV module laminated with MorphoColor® film.
Project Partner
- TU Graz
- Consiglio Nazionale delle Ricerche (CNR)
- Helmholtz Zentrum Berlin
- Cea liten
- FilBau S.R.O
- Comtes FHT
- Ino GmbH
- Halocell
- temicon GmbH
- Bifa Umweltinstitute GmbH
- Joanneum Research Forschungsgesellschaft
- Terran TETOCSEREP GYARTO KFT
- Commissariat à l’énergie atomique et aux énergies alternatives
Funding
This project has received funding from the Horizon Europe Framework Programme (HORIZON) research and innovation Programme under the grant agreement No 101122327.
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