Knowledge

    In order to fundamentally and directly improve the photoelectric conversion rate of TOPcon solar cells, cell manufacturers usually need to carry out an oxidative annealing process on the surface of the solar cell, so that the deposited thin film material has a higher square resistance/...

    The production of solar cell electrodes is an important part of the solar cell manufacturing process, which will directly affect the performance and stability of solar cells. In the process of its production, the selection of electrode materials for solar cells is particularly importan...

1.Texturing     The texturing section (a total of 6 lines) includes pre-cleaning - pure water washing before texturing - texturing *3 - pure water washing after texturing - post-cleaning - pure water washing after cleaning - pickling - pure water washing after pickling - slow lifting pre-d...

    The full English name of PID is: Potential Induced Degradation, that is, potential induced degradation.     In 2005, a company in the United States discovered and proposed the PID effect for the first time, which specifically refers to the long-term operation of the module at...

    The photovoltaic industry is facing a new round of technological reform, and many processes will be used in the production process of solar cells and modules.     One of the major optical losses in solar cells is surface light reflection. The surface light reflection loss of...

    Unlike many other solar cell production processes, the sintering process directly reduces the contact resistance and improves the contact stability of the cell surface through physical means.     The principle of the solar cell sintering process   The working principle a...

Issue   Effect of B expansion doping curve on n-TOPCon cell   1.I-V parameters: VOC/FF/RSER/JSC   2.Peak concentration   3.Junction depth   4.Saturation current density   5.Contact resistivity  Key conclusions   1.Saturation dark current effect    ...

What is a PN junction?   A PN junction is a semiconductor structure that is used as a basic component for the construction of various semiconductor devices. How did it come to be?   By using different doping processes to tightly bond P-type semiconductors and N-type semiconductors to form...

Luminescence imaging The basic principle of luminescence imaging is to excite the surface of a sample to make it glow, and then capture the luminescent imaging with a camera. Two imaging methods commonly used in crystalline silicon cells PL, Photo-luminescence, is excited by incident photons. The li...

TOPCon technical difficulties Difficulties in the TOPCon process Boron diffusion LPCVD winding plating problem PE-poly film burst problem Yield loss due to long process steps Burn-through and diffusion destroy passivation The high-temperature process causes damage to the silicon wafers TOPCon cost d...

  One of the major optical losses in solar cells is surface light reflection. The surface light reflection loss of polished silicon wafers is up to 34%, and the reflection must be reduced to ~10% or less in order to prepare high-efficiency solar cells. In crystalline solar cells, suede is often...

As a key material affecting the conductivity of solar cells, a series of factors such as height, width, and number of solar cell grid wires will determine the photoelectric conversion rate of solar cells. Therefore, after the solar cells are screen-printed and cleaned and texturized, solar cell manu...