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Third-Generation Solar Cell Technology
Integrated Solar Solutions for Curved Buildings & Outdoor Portable Power
What is Perovskite?
Tap an atom — A, B or X — to see what it does
ABX3
Perovskite is a crystal structure — ABX₃ — coated as a film thinner than a hair. It isn't a better silicon panel. It's the third generation of solar.
Tap any atom to explore its role →
A-site cation · Cs⁺ / MA⁺ / FA⁺
The cage filler
Large cations sit at the cube's corners. They don't catch light themselves — they hold the lattice in shape. Blending them is how efficiency is traded off against heat and humidity stability.
B-site metal · Pb²⁺ / Sn²⁺
The light-absorbing heart
The metal sits at the center of every [BX₆] octahedron. Its orbitals form the band edges — this is where a photon becomes an electron. All the electrical work happens here.
X-site halide · I⁻ / Br⁻ / Cl⁻
The tunable bridge
Six halides bridge neighboring B atoms into a 3D network. Swap iodide for bromide and the band gap shifts — retuning the absorption edge, the color and the voltage. That tunability is unique to perovskites.
Inside a perovskite cell
Tap a layer to see its job
Five layers. One sandwich.
A perovskite cell is a stack of five ultra-thin films: conductive – functional – perovskite – functional – conductive. The perovskite layer in the middle makes the charge; the two functional layers sort it; the two conductive layers carry it out.
Tap any layer to see its job →
Layer 01 · Sun side
Conductive layer
The front electrode. Transparent so sunlight passes through, yet conductive enough to collect the current every layer underneath produces.
Layer 02
Functional layer
A charge-transport film between the electrode and the perovskite. It guides one type of charge carrier through while blocking the other — that's how electrons and holes get sorted instead of recombining.
Layer 03 · The power core
Perovskite layer
The only layer that turns light into electricity. ABX₃ crystals coated as a film under 1 µm thick — photons in, electrons out. Every other layer exists to move or extract that charge.
Layer 04
Functional layer
The matching transport film on the other side of the perovskite. It passes the opposite charge carrier from layer 02, completing the split so both types flow out to different electrodes.
Layer 05 · Back side
Conductive layer
The back electrode. It collects the charges routed down through the stack and sends them around the external circuit — closing the loop that powers your device.
Three generations of solar
Generation 1 · 1954
Crystalline Silicon
150–180 µm
Outdoor efficiency
Commercial 21–23%
Lab record ~27%
Theoretical limit ~33%
Generation 2 · 1990s
Thin-Film Solar
Outdoor efficiency
Commercial 16–19%
Lab record 23.6% CIGS
CdTe record 22.1%
Theoretical limit ~33%
Generation 3 · 2009 → Now SunFlex's technology
Flexible Perovskite
<1 µm
perovskite active layer thickness
3.8% → 26.9%
lab efficiency, 2009 → 2026
Low-light champion
Lightweight
Portable
Free-form
Impact-safe
Outdoor efficiency
SunFlex certified 20.09%
Lab cell 26.9%
Single-junction limit ~33%
All-perovskite tandem limit ~45%
Indoor efficiencyunder white LED, 200 lux
Crystalline silicon~8%
Thin-film (a-Si)~9%
Flexible perovskite35%
Three generations, one direction: from rigid wafers to printable films. Generation three is what SunFlex makes.
A film, not a wafer
Perovskite film
< 1 µm
Human hair
~70 µm
Silicon wafer
150–180 µm
Schematic — not to scale. Thickness of the active light-absorbing layer.
"Compared with crystalline silicon PV, the active absorber layer a perovskite cell needs is far thinner."
— U.S. Department of Energy
The layer that makes power is thinner than a human hair — coated, not cut. That's why it can bend, weigh almost nothing, and take any shape.
Why now: the mass-production era
R&D
15+ years of perovskite R&DCAS-backed technical background, from material science to product engineering.
Manufacturing
The world's first flexible perovskite source factory.Purpose-built line for flexible perovskite modules — 6,000,000+ pcs annual capacity, 10,000 ㎡ production area.
Certified
20.09% efficiency, full IEC 63163 certificationCommercial flexible perovskite modules certified by TÜV SÜD under full reliability testing.
Designed
2026 German iF Product Design AwardTechnology that earns its place in consumer products — not just on a spec sheet.
The science took 16 years. The supply chain took a gigafactory. Both are here now — certified, designed for real products, shipping at scale.
From material to your product.
Now that you know the material — scroll on and meet the products.
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