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Electrical Property
1, Solar Cells Structure
2, Mechanical Date and Design
Format | 156x156mm ±0.5mm |
Diameter | 220±0.5mm |
Thickness | 200±20um |
Weight | 12±0.5g |
Front(-) | 1.8mm bus bars (Silver) |
Blue anti-reflecting coating (Silicon nitride) | |
Back (+) | 3mm wide soldering pads (Silver) |
Back surface field (aluminum). |
3, Electrical Parameters
Efficiency cell (%) | Maximum power Pmpp(w) | Peak voltage Vmp(V) | Peak current Imp (A) | Open-circuit Voltage Voc(V) | Short-circuit current Isc(A) |
17.0-17.2 | 4.14 | 0.523 | 7.957 | 0.628 | 8.454 |
16.8-17.0 | 4.09 | 0.520 | 7.883 | 0.627 | 8.362 |
16.6-16.8 | 4.04 | 0.518 | 7.832 | 0.626 | 8.315 |
16.4-16.6 | 3.99 | 0.516 | 7.779 | 0.623 | 8.265 |
16.2-16.4 | 3.94 | 0.514 | 7.772 | 0.620 | 8.210 |
16.0-16.2 | 3.89 | 0.511 | 7.668 | 0.618 | 8.158 |
15.8-16.0 | 3.84 | 0.509 | 7.610 | 0.615 | 8.102 |
4,Temperature Characteristics
Name | Unit | Value |
α (Isc) | [%/°C] | 0.0574 |
β (Voc) | [%/°C] | -0.3083 |
ϒ (Pmax) | [%/°C] | -0.4060 |
5, Intensity Dependence
Irradiance[W/m²] | Open-circuit voltage[%] | Short-circuit current[%] | Maximum power[%] |
1000 | 100.0 | 100.0 | 100.0 |
800 | 98.56 | 80.05 | 79.86 |
600 | 97.39 | 60.08 | 59.51 |
400 | 95.70 | 40.11 | 39.13 |
200 | 92.66 | 20.07 | 18.88 |
6.I-V Curve & Spectral Response
7.Feature:
High conversion efficiencies resulting in superior power output performance
Outstanding power ourput even in low light or high temperature conditions
Optimized design for ease of soldering and lamination
Long-term stability,reliability and performance
Low breakage rate
Color uniformity
8.Quality Assurance & Control
ISO9001 quality management system and ISO14001 environmental management system standard are completely implemented in our company's solar cell manufacture process.
1, classified efficiency grades by both minimum power and power current
2, Screened for reverse current and shunt resistance
3, Constant reliability monitoring
4, Sorted into four defined color classes
5, Minimal button marks
6, No beading
7,Low warpage and bowing
8, REACH-SVHC and RoHS compliant
How Solar Cells Work
Photovoltaic cells, also known as PV or solar cells, are created from semiconductor material such as silicon. The process of solar conversion works as follows:
1) When light strikes the cells, a specific portion or "band" of the light wave is absorbed by the material.
2) That solar energy causes the semiconductor material to release electrons.
3) The semiconductor material is positioned within an electrical field by using negatively and positively charged silicon (n-type and p-type), so that all electrons set "fee" from the material are forced to flow-generating electrical current.
Solar Cells Manufacturing Line
Solar Cells Manufacturing Process
Parameter Test
Especially mentioned that you can't multimeter to test the solar cells, it is not the right way!
To test solar cell should use the professional equipment, please check above photos to see how we test.
Please noted that, there have many PM points on the solar cells, use multimeter only can touch 1 or 2 PM point, it is hard to make the current come out. You can see our test equipment; there have many metal needles, almost touch the whole solar cell busbar. Normally, to use the multimeter, no matter what kind solar cells, sometime there only very less current come out, like 0.1-0.5A!
Test Result
Package
3.9Watt 156mm Polycrystalline Silicon Solar Cell (2BB)