TNC2.0

When a laser cuts through crystalline silicon

disrupting the perfect crystal lattice

photogenerated carriers are consumed at the cut surface

and energy silently dissipates before collection

Tongwei's TPE technology

constructs a precision passivation layer at the cut surface

"sealing" the crystal's "wounds",

and reshaping the path of light

The origin of TPE

can be traced back to the development of half-cell technology

……

PART 1

The Half-Cell Revolution

The Awakening of Fission Energy

What is a half-cell?

Simply put

it involves dividing a complete solar cell

into two halves along a line perpendicular to the main grid lines

This is half-cell technology

The application of this technology significantly reduces resistive losses

giving the module's power generation efficiency a boost

while also enhancing reliability

Compared to traditional modules

products using half-cell technology

can maintain higher power generation efficiency even under partial shading

ensuring the continuity of power output

and greatly reducing the interference of environmental factors on power generation

PART 2

The Way of Healing

The Rebirth of Order at the Boundary

Half-cell technology, based on laser cutting processes

while unlocking efficiency potential

also introduces new issues at the cut edges

The cut edges contain a large number of dangling bonds, impurities, and lattice defects

If not repaired

they will become a "drain" for energy loss

Tongwei's TPE technology

was born to heal these "wounds"

Its core principle lies in

constructing a barrier at the cut edges

to block charge recombination

thereby extending the lifetime of photogenerated carriers

Enhancing minority carrier lifetime

enhancing open-circuit voltage

enhancing photoelectric conversion efficiency

Through the application of TPE technology, TNC 2.0 modules

see a 0.2%+ increase in cell efficiency

and a 5W increase in module power

PART 3

The Evolution of Time, the Evolution of Efficiency

In the traditional process

after cell production is completed

cells are packaged and stored in "whole cell" form

followed by sorting, cutting, and other operations

Tongwei's TPE technology

optimizes this process

avoiding the risk of damage from cutting after whole-cell passivation

At the same time, passivated half-cells can be directly used for module encapsulation

reducing the complexity of subsequent processes

The journey of light

should not be worn down by cracks

Tongwei's TPE technology

drives the value limit of every kilowatt-hour through technological innovation

The Theory of Efficiency Evolution is continuously updated

……

Planned and produced by: Module Marketing Division of PV Business Department, and the Administrative Department

Content support: PV Technology Department, Product Management Division of PV Business Department