Oxford Photovoltaics (Oxford PV)

Last updated on Mon 10/06/2024 - 16:41
Company Type:  

Oxford Photovoltaics (Oxford PV) was founded in 2010 as a spin-out from the University of Oxford, to commercialize a new technology for thin-film solar cells. It was amongst the first in the world to recognize the potential of perovskites to act as a low-cost, highly efficient solar cell absorber material to convert sunlight into electricity.

The Company focuses on developing and commercializing a perovskite-based solar technology. Its research and development site in Oxford, UK, and pilot and production line near Berlin, Germany, enable the accelerated transfer of Oxford PV's technology into industrial-scale perovskite-on-silicon tandem solar cell manufacturing. 


The Company exclusively licensed the rapidly growing portfolio of fundamental intellectual property developed by its academic team.

Oxford PV has acquired the former thin-film production site of Bosch Solar in Germany, to establish a fab with pilot-scale capacity for perovskite wafers. To that end, the Company also received funding from the European Investment Bank (EIB), to support the commercialization of its perovskite-on-silicon tandem solar cell technology.

Company Address

Unit 7–8 Oxford Pioneer Park
Mead Road, Yarnton
Kidlington, Oxon
United Kingdom

Sunmaxx PVT and Oxford PV unveil world’s most efficient solar PVT module

Sunmaxx PVT, a German developer and manufacturer of photovoltaic-thermal solar modules, and Oxford PV, a producer of high-efficiency tandem solar cells, announced the launch of the “Solar Hammer" module. This partnership marks the first use of perovskite-on-silicon tandem solar cells in a photovoltaic thermal module, enabling a very high conversion efficiency. Both the cells and the modules are produced in Germany.

Sunmaxx PVT’s modules combine proven thermal management technology from the automotive industry with photovoltaics, leading to a total conversion efficiency of 80%, certified by Fraunhofer ISE. Oxford PV’s perovskite-on-silicon tandem solar cells have broken multiple records for conversion efficiency. In combination, these technologies enable more usable electricity and heat to be generated from the sun’s energy. The new module comes at a record efficiency of 26.6% electrical and 53.4% thermal efficiency, totaling 80% overall efficiency on aperture area level of 1.63 m2. The electrical power of the module with 6×10 M6 cells is 433 W, surpassing the previous record of Fraunhofer ISE.

Read the full story Posted: Jun 21,2024

Oxford PV unveils residential solar module with record-setting 26.9% efficiency

Oxford PV has announced a record-setting 26.9% efficiency for its double-glass, 60-cell “residential sized” perovskite tandem module at the Intersolar Europe 2024 event. The module reportedly has a surface area of a little over 1.6 m square meters (1m x 1.7m) and weighs a little under 25 kg, “the ideal size for residential applications,” according to Oxford PV.

Oxford PV produces the proprietary high efficiency tandem solar cells at its manufacturing facility in Brandenburg an der Havel, Germany, and uses both in-house and contract services for the module assembly.

Read the full story Posted: Jun 19,2024

Oxford PV and Fraunhofer ISE announce full-sized tandem PV module with 25% efficiency

A research team from the Fraunhofer Institute for Solar Energy Systems ISE has reported a PV module using perovskite silicon tandem solar cells from Oxford PV with an efficiency of 25% and an out-put of 421 watts on an area of 1.68 square meters, stating it is a record efficiency for a silicon perovskite tandem solar module in industrial format. 

For the manufacturing process, the researchers used equipment at Fraunhofer ISE's Module-TEC that is already used in mass production and optimized the processes for the tandem technology.

Read the full story Posted: Jan 31,2024

Researchers examine shingling as an interconnection method for perovskite-silicon tandems

A group of scientists from Germany's Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE), with support from Oxford PV Germany, have examined shingling as an interconnection method for perovskite-silicon tandem (PVST) cells.

Full-format perovskite-silicon tandem shingle modules produced at Fraunhofer ISE in collaboration with Oxford PV. Image from Solar Energy Materials and Solar Cells.

The scientists explained that the combination of PVST cells with shingling allows boosting the module efficiency even further due to the increase of the photoactive area through the absence of cell gaps. They went on to say that shingling suits the temperature limitations of the PVST cells since the main factor for the choice of the processing temperature is the curing conditions of the electrically conductive adhesive.

Read the full story Posted: Oct 15,2023

Oxford PV's perovskite-on-silicon tandem solar cells used in the Bridgestone World Solar Challenge

Oxford PV has announced that its perovskite-on-silicon tandem solar cells will be deployed for the first time on the race car of the Top Dutch Solar Racing team for the upcoming Bridgestone World Solar Challenge. 

Taking place between the 22nd and 29th of October 2023, the competition brings some of the world’s greatest scientific and engineering talent to Australia to travel 3,000 kilometers in a vehicle powered only by the energy of the sun. University-affiliated teams push the limits of technological innovation and travel the outback in solar-powered vehicles that they have designed, engineered and ultimately built themselves.

Read the full story Posted: Oct 11,2023

Researches develop low-temperature processes to reduce silver use in tandem perovskite-silicon solar cells

Researchers from the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) and Oxford PV Germany have developed low temperature manufacturing processes for perovskite silicon tandem cells and heterojunction solar cells. The novel techniques are reportedly able to reduce silver consumption and avoid lead-containing soldering materials.

The scientists developed two different processes: front-side metallization at very low temperatures for full-size perovskite silicon tandem solar cells; and the interconnection to high-efficiency full-format demonstrator modules with an output power of more than 400 W.

Read the full story Posted: Oct 03,2023

Oxford PV announces new efficiency record

Oxford PV has announced 'a new world record for the efficiency of a commercial-sized solar cell'. The efficiency record was achieved on a commercial-sized ‘M4’ (258.15 cm2) solar cell. The cell is a 2T device made by depositing a perovskite thin-film cell onto a conventional silicon heterojunction cell.

The record-breaking solar cell converted 28.6% of the sun’s energy into electricity, as independently certified by Fraunhofer ISE. The solar cell was produced at Oxford PV’s integrated production line in Brandenburg an der Havel, Germany. The factory has commenced initial production of the company’s tandem solar cells for integration by solar module manufacturing partners and is ramping up to higher volumes. The site, operational since 2017, houses the world’s first volume manufacturing line for perovskite-on-silicon tandem solar cells.

Read the full story Posted: May 24,2023

"Katana" project to establish reliable measuring system for tandem solar cells

To pave the way for the industrial implementation of efficient perovskite-silicon PV modules, a reliable measuring system for tandem solar cells and modules must be established. Only then can objective comparisons between different cells and modules take place. In contrast to conventional silicon PV modules, however, the calibration is considerably more challenging. 

A project consortium, led by the Fraunhofer Institute for Solar Energy Systems ISE, is therefore developing methods for characterizing perovskite-based tandem modules in the "Katana" project, funded by the German Federal Ministry for Economic Affairs and Climate BMWK. The solar simulator specially built for this purpose by the company Wavelabs Solar Metrology Systems GmbH is now in use in the CalLab PV Modules of the research institute.

Read the full story Posted: May 22,2023

New project will utilize quantum computing to advance perovskite PV materials

A UK-based quantum software company called Phasecraft will lead a project modelling new perovskite-silicon materials for solar photovoltaics. The project, in collaboration with Oxford PV and scientists at University College London (UCL), is aimed to support the development of quantum computing to simulate “currently intractable problems” in PV materials modelling, according to a recent statement.

Not many details were given regarding the new project, which received an award from UK Research and Innovation’s Commercializing Quantum Technologies Challenge. It was, however, said that it will set out to develop a modelling capability that is tailored to the real-world needs of the PV industry.

Read the full story Posted: Aug 06,2022

Researchers examine the environmental performance of perovskite-on-silicon tandem solar cells

A team of scientists from Technische Universität Berlin, Oxford PV Germany, German Philipps-Universität Marburg, Helmholtz Zentrum Berlin (HZB) and Oxford PV UK has, for the first time, assessed the environmental performance of industrially produced perovskite-on-silicon PV modules. Understanding the environmental impact of solar PV modules across their entire lifecycle is essential for the design of more sustainable solar energy systems. However, lifecycle assessment of perovskite-on-silicon PV modules has so far relied heavily on data from laboratory and test facilities rather than manufacturers.

The researchers conducted a comprehensive lifecycle assessment of a perovskite-on-silicon module across a number of categories including global warming potential, water consumption, human and marine toxicity, and metals usage. They assessed the materials and energy input for a module’s ‘cradle to gate’ lifecycle, covering all materials and energy input for wafer production, manufacture of the perovskite cell, and module production. The researchers then weighed up the environmental impact of the tandem module against the electricity generated over its lifetime.

Read the full story Posted: Jul 11,2022