TM
Trisol LED (TLED) Class
A+++AA Single Long Pulse Solar
Simulator and I-V / EQE Tester
for Measuring Solar Cells
FEATURES
 Ideal for III-V Multi-Junction (Upto >6),
c-Si, DSSC, Organic & Other Solar Cells
 ~30 LED Wavelengths to provide control
and energy ratios in desired energy bands
 Perfect for R&D and Production
 Beam size 30x30mm, 75x75mm &
208x208mm
 Class A+++/A/A Performance
 Exceeds JIS, IES, ASTM Stndards
 Spectral Match Options
 ~350 - 1100nm (AM1.5D /
AM1.5G)
 ~350 – 1800nm
(AM1.5D/AM1.5G/AM0)
 Advanced Uniform Beam Optics
 Provides Beam Intensity 0 – 1200W/m2
 Temperature Controlled Test Fixture
 Pulse Width 5msec to Continuous
 Provides Dark & Light I-V Curves
 Provides Forward & Reverse I-V Sweeps
 Measures up to ±1-20A/±20V/20-200W
 Normalized I-V Curve
 EQE measurements from 350 – 1800nm
 >360,0000,000 Flashes per LED Lifetime
 Highly Reliable and Long Lifetime
 >99% Uptime
OAI is pleased to introduce a leading edge multipurpose new TrisolTM LED
(Model: TLED) Class A+++ AA Single Long Pulse Solar Simulator & I-V / EQE
Tester for measuring solar cells. The new system provides both I-V
characteristic and EQE spectral response measurements for III-V based
multijunction (upto >6 Junctions), c-Si, DSSC, Organic and various thin film
based solar cells. The system is built using a total of ~30LEDs having
wavelengths 365nm, 380nm, 400nm, 420nm, 440nm, 470nm, 490nm,
520nm, 530nm, 595nm, 620nm, 630nm, 640nm, 660nm, 740nm, 780nm,
850nm, 940nm, 980nm, 1025nm, 1064nm, 1150nm, 1260nm, 1310nm,
1450nm, 1550nm, 1600nm, 1725nm and 1750nm. The LED system comes in
two Class A+++ spectrum range configurations from a) 350 – 1100nm and b)
350 – 1800nm with corresponding AM1.5D, AM1.5G and AM0 spectrum.
The simulator comes in three beam sizes: 30x30mm (Model: TLED-30),
75x75mm (Model: TLED-75) and 208x208mm (Model: TLED-208). The beam
intensity is set at 1Sun condition and can vary from 0 – 1.2 Suns range.
The system software is cable of controlling & adjusting the spectrum and
providing Class A+++ (<±2%) various energy wavelength bands such as 350
– 400nm, 400 - 450nm, 450 – 500nm, 500 - 550nm, 550 - 600nm, 600 650nm, 650 – 700nm, 700 - 750nm, 750 – 800nm, 800 – 850nm, 850 –
900nm, 900 – 950nm, 950 – 1000nm, 1000 - 1050nm, 1050 – 1100nm,
1100 – 1200nm, 1200 - 1300nm, 1300 – 1400nm, 1400 – 1500nm, 1500 –
1600nm, 1600 - 1700nm and 1700 - 1800nm range. Additionally, the
system also provides the capability for external analog signal to
independently control each of the above specified wavelengths.
The TLED Class A+++AA solar simulator provides a variable length light pulse
with duration from 5msec to continuous steady state. The light pulse width
is controlled using proprietary I-V rider software which comes with the
system. Due to the extreme reliability and long life-time of the LED’s, the
TLED system provides about 360,000,000 flashes calculated for a flash
duration of 100msec. This makes the system highly reliable and gives a long
life of > 15 years without the need to replace any LEDs.
TM
Trisol LED (TLED) Class A+++AA Single Long Pulse Solar Simulator
and I-V / EQE Tester for Measuring Solar Cells
Solar Cell I-V Testing
The TLED Class A+++ I-V/EQE Tester comes with a LED Solar Simulator, Source Meter, I-V Rider Software loaded on
Computer and Thermoelectric based Temperature Controlled Vacuum Test Fixture.
The I-V Testing system is equipped with a ±20A / ±20V / 200W source meter and comes with an I-V Rider software
loaded on a computer . OAI can further integrate other source meters with various ratings such as ±1A / ±20V /
20W, ±3A / ±20V / 60W, ±5A / ±20V / 100W and ±10A / ±20V / 200W to customize based on solar cell
characteristics. The source meter comes with voltage and current measurement accuracy of 0.02%. The source
meter provides the 4 quadrant load I-V measurement. The I-V test system completes an I-V measurement in
10msec – >200msec (adjusted to solar cell response time) to provide an accurate measurement. The system
further measures solar cell electrical performance parameters such as Voc, Isc, FF, Rs, Rsh, Imax , Vmax, Pmax and
Efficiency. The I-V rider software follows the algorithms and guidelines per IEC and NREL for calculating the
electrical parameters. The I-V Rider software provides the provision to measure I-V curves in both forward Isc to Voc
and backward Voc to Isc sweep directions. In addition, I-V rider software provides additional capability to adjust the
pulse width and frequency of measurement to arrive at the right voltage sweep rate for obtaining the most
accurate FF and Voc values and to overcome any I-V hysteresis issues. The system comes with a built-in sensor
installed on Test Fixture which records beam intensity against each data point to provide a normalized I-V curve.
The I-V Rider software further provides the capability to write the script for programing the solar cell testing .
The vacuum and temperature controlled test fixture comes in various standard size s of 25x25mm, 52x52mm,
75x75mm, 156x156mm and 208x208mm. The vacuum chuck is fabricated with either a Al or Cu plate and comes
with a vacuum pump to hold samples down. The back plate provides a number of isolated voltage pin contacts and
the plate itself provides sensing of current. The two Micro-manipulators, which comes with the test fixture, in
combination with back plate allow 4 - Point Contact for the I-V measurements. A Peltier / Air Cooling system
provides measurement of solar cell at STC (25 ± 0.5⁰C) condition. The solar cells can be further measured in varying
temperature conditions from 5°C – 70°C with accuracy of ±0.5°C to deduce temperature dependency and
temperature coefficient value. All of these tests can be programmed with the I-V Rider software script. For
measuring a full 156x156mm solar cell, the test fixture can be upgraded to an automated bus-bar frame. The busbar current – voltage pins are designed to provide minimum contact resistance to achieve most accurate I-V
measurement and device Fill-Factor with minimum series resistance.
EQE Spectral Response
The new Trisol TLED multipurpose system further provides the capability to do EQE spectral response
measurement at various wavelengths such as 365nm, 380nm, 400nm, 420nm, 440nm, 470nm, 490nm, 520nm,
530nm, 595nm, 620nm, 630nm, 640nm, 660nm, 740nm, 780nm, 850nm, 940nm, 980nm, 1025nm, 1064nm,
1150nm, 1260nm, 1310nm, 1450nm, 1550nm, 1600nm, 1725nm and 1750nm. One can independently control
each wavelength to collect photocurrent data of a solar cell and integrate to arrive at an EQE plot. The system also
has a built-in calibrated reference photodiode. The EQE spectral response is the ratio of the current generated by
the solar cell to the power incident on the solar cell at a given wavelength of light. The system has the capability of
doing the EQE measurement of the entire area of the solar cell and hence providing an accurate characteristics.
The I-V Rider software provides the capability of doing the EQE measurement.
Note:
The system can be further configured and designed to suite any custom design requirement. All specifications are subject to change by OAI at any time.
TM
Trisol LED (TLED) Class A+++AA Single Long Pulse Solar Simulator
and I-V / EQE Tester for Measuring Solar Cells
Product Specification Table:
Solar Simulator
OAI Specification Compliance
Type of Solar Simulator
TLED
a) 30mm x 30mm (Model TLED - 30)
b) 75mm x 75mm (Model TLED - 75)
c) 208mm x 208mm (Model: TLED - 208)
Short pulse to Steady State Continuous
Maximum Illuminated Area Options
Type of Solar Simulator
Class
Class AAA (Spectral Match, Spatial Non-Uniformity and
Temporal Instability) Classification
Class A+++AA
Exceeds A- IEC 60904-9-2007, A-JIS C8912 and A-ASTM E 927-05
Spectral Match
a) 350 - 1100nm (AM1.5D and AM1.5G)
b) 350 - 1800nm (AM1.5D, AM1.5G and AM0)
0.98 - 1.02 (±2%, Class A+++)
Filter
Air Mass Filter AM0.0, AM1.5D and AM 1.5G
Typical Power Output
1Sun ± 20% (adjustable) per AM0.0 / AM1.5G / AM1.5D Spectrum
Collimation Angle
< ±20% (Half Angle)
Spatial Non-uniformity of Irradiance over Work Area
Lamp Type
≤ ±2%
≤ 0.5% STI
≤ 2.0% LTI
Various LEDs of wavelengths from 365 - 1750nm
Lamp Power Supply
Low Ripple with automatic timer upto 1500W
Working Distance
~2 ± 0.5 inch
Line Regulation
<1%
Pulse Control
No shutter is required. System wil loperate in pulse or continuous mode.
Cooling Mechanism
System comes with required cooling mechanism and safety interlocks
Safety Systems
Comply UL 60950
Phase, Voltage and Frequency
Single Phase, 230VAC, 10A, 50 - 60Hz
Operating Manual
System will come with operating manual in English
I-V Tester
OAI Specification Compliance
Test Fixture
Temperature (5⁰C to 70⁰C) Controlled Vacuum Test Fixture comes in various sizes such
as 25x25mm, 52x52mm, 156x156mm and 208x208mm
I-V Test System Integration
Solar Simulator, I-V Source Meter, Accessories and I-V Software will all come fully
integrated to allow both manual and automatic I-V Measurements
I-V Software Capability
The integrated I-V software allows the plotting of I-V Curve and calculation of various solar
cell parameters such as Isc, Jsc, Voc, FF, Vmax, Imax, Pmax, Cell Efficiency, Rs and
Rsh. The software also calculates power curve. I-V Software allows meaurements and
plots all three Dark, 0.8Sun and full 1Sun I-V curves simultaneously
Source Meter
OAI Source Meter Options: ±20A / ±20V / 200W, ±10A / ±20V / 200W, ±5A / ±20V /
100W, ±3A / ±20V / 60W, ±1A / ±20V / 20W, 100 V to 250 V AC, 50 Hz to 60 Hz
Note: OAI can also further integrate other source meters with rating 1A, 3A, 5A and 10A.
Current / Voltage Accuracy
0.020%
Number of Measurement Points
Upto 2000 readings. The I-V software also allows to independently control voltage steps
and measurement frequency to determine the number of points. The system also has a
unique feature of adjusting the voltage sweep rate to allow most accurate I-V curves when
sweeping in both forward and reverse sweep directions.
Wavelength Range Options
Temporal Instability
Measurement Time
System provides pulse duration and I-V Measurement from 5ms to >0.5s
Software upgrade for Mismatch Correction Factor and Reference
Software calculates the correction factor and Reference Ratio
Ratio
EQE Measurements (350 - 1100 - 1800nm)
Included
Data Storage
I-V Software will allow data storage in ASCII file. SQL database
About OAI
For over 40 years, OAI has been a leader in the generation, control, and measurement of light.
Supplying advanced precision equipment for both R&D and production, OAI has gained a
worldwide reputation in the PV/SOLAR, MEMS, Semiconductor, Microfluidics, MicroTAS, and Flat
Panel industries. The company offers a broad portfolio of field-proven products that include:
solar simulators, IV testers, solar power meters, calibrated reference cells, outdoor panel IV
tracer, UV exposure systems, UV light sources, mask aligners, nano imprint modules, UV
Measurement Instruments and numerous custom-engineered solutions. OAI’s products deliver
exceptional performance, high versatility and outstanding reliability. Based on a proven platform
of modularized subsystems, many of these advanced tools can be custom configured to meet
your specific requirements. With thousands of systems and instruments in use around the world,
OAI prides itself on highly responsive customer service and superior engineering support.
685 River Oaks Parkway • San Jose, CA 95134 USA
Phone (408) 232-0600 • Toll free (800) 843-8259 • [email protected]
www.oainet.com www.oai-instruments.com