Perovskite is named after Russian mineralogist Perovski, originally referring to the mineral calcium titanate (CaTiO3), and later called the structure ABX3 and similar crystals as perovskite minerals.
A: Organic ions, CH3NH3+, C2H5NH3+, etc.;
B: Divalent metal ions, Pb2+, Sn2+, etc.;
X: Halogen anion, Cl-, Br-, I-, etc.
Solar cell development history
The first generation: crystalline silicon solar cells
1950s Bell Labs reports
Monocrystalline silicon conversion efficiency 26.7%
Polysilicon conversion efficiency 20.8%
Approaching the limit, with a market share of 89%
Relying on high-purity silicon, manufacturing costs are high
Second generation: thin-film solar cells
Amorphous gallium arsenide efficiency 30%
Rare earth elements are required
Complex process CVD or PECVD
The preparation process is heavily polluted
It is difficult to promote further
The third generation: new solar cells such as perovskite
Since 2009, the highest PCE has reached 25.7%
Flexible PSCs up to 21.75% PCE
Low manufacturing cost
Flexible structures can be prepared
At the World Economic Forum 2016, it was named one of the "Top 10 Emerging Technologies with the Most Commercialization Potential"
01High photoelectric conversion efficiency
The flexible substrate of silver nanowires is used instead of ITO, which has a simple preparation process and high conversion efficiency.
02Low manufacturing cost
The preparation process of full coating is adopted to reduce costs.
03Flexible structure can be prepared
The flexible substrate is light and thin, bendable and foldable, easy to carry, and the scene is more extensive.
The traditional preparation process is complex, cumbersome in steps, consuming, and costly.
HKT technical route and advantages
It can block 90% of near-infrared rays and 80% of visible light and most ultraviolet bands, and has functions such as decoration/privacy/energy saving/intelligent control
Experience in the synthesis of nanomaterials related to perovskite solar cells
Roll to Roll Precision coating mechanism with large area flexible electrodes
Large-area flexible material light curing equipment
HKT perovskite solar cell application scenarios
Curved walls inside and outside the building
Aesthetic building curtain wall
Foldable solar curtains
Solar car power generation window