Description
A photoelectric cell, also called cell, photocell, or cell PV is an electronic device that can transform the light energy (photons) into electrical energy (electrons) by photovoltaic effect.
They are made from monocrystalline silicon which has photoelectric effect: photons absorb light and emit electrons. When these free electrons are captured, the result is an electric current that can be used as electricity.
These cells pseudosquared of high-efficiency monocrystalline silicon are made of a single crystal of high purity silicon, to transform solar radiation energy into electrical energy of current.
Its performance is excellent over the entire range of light spectrum, with particularly high yields in low light situations or cloudiness to direct sunlight (diffuse radiation).
With high quality criteria used in its manufacture and test of control is achieved that the performance differences between different cells is less than 0.3 %.
Data
Electrical Characteristics
|
Efficiency (%)
|
Pmpp (W)
|
Vmpp (V)
|
Impp (A)
|
Voc (V)
|
Isc (A)
|
FF (%)
|
|
21.63
|
5.45
|
0.0.5857
|
9.46
|
0.68
|
10.03
|
79.82
|
|
21.72
|
5.47
|
0.58
|
9.47
|
0.68
|
10.03
|
79.99
|
|
21.82
|
5.50
|
0.58
|
9.48
|
0.68
|
10.04
|
80.17
|
|
23.00
|
5.80
|
0.60
|
9.64
|
0.70
|
10.13
|
82.09
|
STC: 
Irradiance: 1,000 W/m2 + 
Module temperature: 25º C + 
Air quality: 1,5
Mechanical Characteristics
|
Size
|
Thickness
|
Front side (-)
|
Rear side (+)
|
|
158 x 158 mm ± 0.5 mm
|
180 um ± 30 µm
|
0.70 mm
busbars (Ag)
blue antireflection coating (Si3 N4)
|
1.65 mm
wide soldering pads (Ag)
back surface field (Al)
|
|
Growth Method
|
CZ
|
|
Conductive Type
|
P
|
|
Dopant
|
Boron (B)
|
|
Orientation
|
<100>
|
|
Off Orientation
|
<± 3º
|
|
Resistivity (ρ)
|
0.5 – 3 Ω cm
|
|
Minority Carrier Life (τ d)
|
> 10 µS
|
|
Qxygen Content (O2)
|
≤ 1.0 x 1018 cm³
|
|
Carbon Content (C)
|
≤ 2.0 x 1017 cm³
|
|
Dislocation Density (Nd)
|
≤ 3,000/cm2
|
|
Size
|
158 x 158 mm ± 0.5 mm
|
|
Diameter
|
223 mm ± 0.25 mm
|
|
Thickness
|
180 µm ± 30 µm
|
|
TTV
|
< 30 µm
|
Thermal Characteristics
|
Temperature coefficient of voltage at maximum power
|
%/K
|
- 0.240
|
|
Temperature coefficient of current at maximum power (Impp)
|
%/K
|
+ 0.069
|
|
Temperature coefficient of maximum power (Pmpp)
|
%/º C
|
- 0.368
|
Measurements
|
MEASUREMENTS PERFORMED IN ACCORDANCE WITH STANDARD TEST METHODS
EN 60904-3 AND ASTM E1036, CORRECTED TO STANDARD TEST CONDITIONS (STC)
|
|
Air quality/Spectral distribution
|
AM
|
1.5 ASTM G173-03e1 (2,008)
|
|
Luminous intensity/Radiation
|
W/m2
|
1,000
|
|
Cell temperature
|
º C
|
25 ± 2
|
|
TEST ACCURACY
|
|
Temperature coefficient of maximum power γ (Pmpp)
|
+ 1.50% rel.
|
|
Efficiency
|
± 0.25% abs.
|
|
MEASUREMENTS PERFORMED IN SOLAR SIMULATOR
|
|
Class
|
AAA (according to IEC 60904-4)
|
|
Power measurement uncertainty is within
|
± 3 %
|
Structural Characteristics
High efficiency solar cells with anisotropic surface etching.
Low reverse current, high drop resistance and reliability.
Continuous inspections in raw material, production, exit and packaging.
Check 100% reverse current and visual appearance.
Low light-induced degradation.
Performance Graphs
Intensity Dependence
|
Intensity [W/m2]
|
Isc *
|
Voc *
|
Pmpp
|
|
1.000
|
1.0
|
1.000
|
1.000
|
|
900
|
0.9
|
0.997
|
0.897
|
|
800
|
0.8
|
0.990
|
0.796
|
|
500
|
0.5
|
0.966
|
0.490
|
|
300
|
0.3
|
0.938
|
0.288
|
|
200
|
0.2
|
0.914
|
0.186
|
(*) Ratio of Voc (Isc) at intensity to Voc (Isc) at 1.000 W/m2
Drawings
Size
Photoelectric Effect
PV Value Chain
Pictures
Videos
Certificates
Our manufacturing plants have been prepared in accordance with:
ISO 9001, in terms of Quality Systems and Business.
ISO 14001, in terms of Environmental Management Systems.
ISO 45001, in terms of Management Systems Health and Safety.
We have a quality control divided into three elements:
Regular inspections allow us to guarantee the quality of the raw material.
Quality control in the process of our manufacturing procedures.
Quality control of finished products, we conduct through inspections and tests of reliability and performance.
Factory
ISO 9001
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ISO 14001
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ISO 45001
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Guarantee
All solar cells manufactured by Solar Innova have the following minimum guarantees:
Packing
Box
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