Description of the technology
Products
Our perovskite solar cells are made using a scalable manufacturing methodology and materials set that can be tuned to cover a range of applications. We have demonstrated the feasibility of producing small (6.5 X 7 cm2) monolithically series interconnected modules (8 subcells) that yielded a stabilized power conversion efficiency of over 23%. Our product offers a lower production cost than traditional silicon solar cells, while also providing a higher energy yield.
Prototype Product 1: 6.5 X 7 cm2 Mini-modules
Prototype Product 2: 30 x 30 cm2 Modules
Prototype Product 3: 100 X 120 cm2 Modules
Perovskites Materials
General formula: ABX3
A (green): Cs+ , CH3NH3+ or CH(NH2)2+
B (dark grey): Pb2+, Sn2+ : X (red): Br- , Cl, - I-
- Perovskite Properties:
- Strong light absorption in the visible region
- Tunable band gap and remarkable defect tolerance
- Small exciton dissociation energy (<30 meV)
- 1. High efficiencies beyond that of traditional silicon photovoltaics.
- 2. Low-cost production as the materials and manufacturing processes are comparably inexpensive.
- Flexibility and versatility as the panel can be made in glass or plastic, the latter being 100 times lighter than current commercial silicon photovoltaics.
- Rapid production as low-energy solution-based processes are used.
- Potential for innovation as the product can be continuously upgraded as superior components are discovered.
- Environmental Benefits as they are based earth abundant elements, are inexpensive to fabricate and are fully recyclable.
Device structures
n-i-p device structure diagram: SEM image of cross-section view for the device
Photovoltaic performance of PSCs and perovskite solar modules. a Cross-section SEM image of the fabricated PSC. b J–V characteristics of the best-performing device. c Photograph of the nine-subcell perovskite solar module.
Device performance Aperture area: 27.22 cm2
New record efficiency
on mini-module 22.50%
Module performance
