Both Nano-Tandem and NanoSol are built around nanowire photovoltaic technology, with NanoSol explicitly focused on commercializing Sol Voltaics' proprietary nanowire deposition process.
SOL VOLTAICS AB
Swedish deep-tech SME developing nanowire deposition technology to boost efficiency of conventional silicon solar cells without replacing existing manufacturing lines.
Their core work
Sol Voltaics AB is a Swedish deep-tech SME commercializing nanowire-based solar cell technology — a manufacturing process that deposits semiconductor nanowires onto conventional solar cells to improve light absorption and efficiency without replacing existing production lines. Their core intellectual property centers on aerotaxy, a gas-phase growth technique for producing gallium arsenide nanowires at scale. They bridge the gap between advanced III-V semiconductor research and industrial photovoltaic manufacturing, positioning themselves as a technology supplier to solar cell makers rather than a panel manufacturer themselves.
What they specialise in
Nano-Tandem (2015–2019) investigated nanowire-based tandem solar cell configurations designed to exceed single-junction efficiency limits.
NanoSol was funded under the SME Instrument Phase 2 scheme — the most competitive EU commercialization grant — confirming Sol Voltaics' ability to execute a business-scale technology transition plan.
Nanowire solar cells using gallium arsenide and related III-V compounds are the underlying material science across both projects.
How they've shifted over time
Sol Voltaics entered H2020 as a research participant in Nano-Tandem, exploring the scientific viability of nanowire tandem architectures alongside academic and industrial partners. Within a year, they had advanced sufficiently to lead their own SME Instrument project, NanoSol, focused explicitly on accelerating commercialization — a sharp pivot from exploratory research to market entry. This compressed trajectory, from consortium participant to solo project coordinator with a €1.74M grant in under two years, suggests a company that moved quickly through TRL stages and was already engaging industrial customers during the project period.
Sol Voltaics was on a clear trajectory toward industrial scale-up and licensing of their nanowire deposition technology to solar cell manufacturers — though their post-2019 status should be verified before assuming current activity.
How they like to work
Sol Voltaics demonstrates a dual collaboration mode: joining larger research consortia as a specialist technology contributor when early-stage science is needed, and leading smaller, focused projects when commercialization is the goal. Their SME Instrument project (NanoSol) was coordinator-led, which means they are comfortable owning the business case and managing EU project obligations independently. With only 6 unique partners across 2 projects, they work in compact, focused consortia rather than broad networks.
Sol Voltaics has collaborated with 6 unique partners across 5 countries, a small but internationally spread network consistent with a focused deep-tech SME building targeted research and supply-chain relationships rather than broad academic networks.
What sets them apart
Sol Voltaics occupies a rare niche: they are not a solar panel manufacturer and not a pure research lab, but a technology platform company whose product is a manufacturing process that improves any silicon solar cell's efficiency by adding a nanowire layer on top. This makes them a potential technology licensor or process equipment supplier to the entire photovoltaic industry. A Lund-based spinout with roots in academic nanoscience, they combine IP ownership with EU-validated commercialization capability — a combination that is genuinely uncommon among European solar SMEs.
Highlights from their portfolio
- NanoSolCoordinated as lead organization under the highly selective SME Instrument Phase 2, receiving €1.74M specifically to commercialize nanowire solar cell technology — the largest and most business-focused grant Sol Voltaics has held.
- Nano-TandemParticipation in this multi-partner research project on nanowire tandem cells placed Sol Voltaics alongside academic and industrial leaders in advanced photovoltaics, validating their technology at a scientific level before their own commercialization push.