Introduction of REPS Perovskite PV and Organic PV Voc-loss Analyzer Original link: https://enlitechnology.com/home/products/eqe-photon-electron-conversion-testing/reps/ *About Enlitech Enlitech was founded in March 2009. The core technologies include artificial light source and spectrum analyzing technique.Enlitech’s four main product markets include image sensor testing solutions, advanced photoelectric detector testing systems, quantum efficiency test solutions, and various light simulators. Our popular products are QER and SS-X solar simulator. If you are interested, please visit the official website to understand more! https://enlitechnology.com/

1. Enli Technology Co. Ltd.
December 24, 2021
1
Introduction of REPS (Perovskite PV and Organic
PV Voc-loss Analyzer)
Boost Your PV Efficiency and Publication.

2. 2
Basic Introduction
• To push the conversion efficiency to the limitation of
Thermodynamics, organic solar cells and perovskite
solar cells strive to increase the open-circuit voltage
(Voc) to Shockley-Queisser limit.
• REPS is a complete system that can help scientists
measure, calculate, and analyze the Voc-loss in the
working solar cells, and give the process improving
idea for the next step. REPS not only can detect the
extremely low EL-EQE signal (as low as 10-5%,
which is 7 orders of magnitude), but can also
calculate thermodynamic Voc, radiative
recombination Voc, and non-radiative recombination
Voc (through its software SQ-VLA).
• In addition, it can also analyze ΔE1, ΔE2, and ΔE3
losses between different type of devices in one
histogram chart. Most importantly, the analyzing
software can help users match the calculated Voc-
loss with the real Voc-loss of the device IV curve,
thereby promoting the research progress and journal
publication.

3. 3
Contents
 Features
 Specification
 Application

4. 4
Features
• It can measure: absolute EL-EQE, EL spectra(V), JV curve, EQE-J.
• The software can display the charts including: EL-EQE(J), EL-EQE(V), multi-EL-
spectra, JVL curve, ΔE1, ΔE2, and ΔE3 histogram chart.
• The system can calculate and analyze thermodynamic Voc, radiative recombination
Voc, and non-radiative recombination Voc.
• The wavelength detection range: 300~1100nm; and can be extended to 1700nm
(option).
• NIST-traceable absolute radiometric calibration (Watt, from 300~1100nm).
• EL-EQE detection range: 10-5% to 100% (Dynamic range 7 orders).
• EL-EQE un-repeatability < 1%.
• EL-EQE un-reproducibility < 1.5%.
• EL low-light detection SN ratio: >50:1 @5×10-5% (REPS Pro).
• Glove Box integration toolkit.
• Customized test fixtures.

5. 5
Features
The relation between the improvement of VocFF and non-radiative loss (Spiro-
mF).

6. 6
Specification
• We provide three different types of REPS system to match your requirement
which have different detection capability and speed.
• REPS Pro
• REPS G2
• REPS+
EL-EQE Speed Un- Repeatability
REPS-Pro
100%~1×10-5
%
(≧ 7 orders)
Fast
(12,500 sa/sec)*
≦ 1%
SN ratio: > 50:1@5×10-
REPS-G2
100%~5×10-5
%
(≧ 6.5 orders)
Medium
(1,000 sa/sec)
≦ 1%
SN ratio: > 50:1@5×10-
REPS+
100%~1×10-4
%
(≧ 6 orders)
Slow ≦ 2%

7. 7
Application
• OPV Voc-loss Improvement
• Perovskite Voc-loss Improvement
• Charge Transfer State Identification

8. 8
For more Proofs and Installation Gallery of REPS, please
click on the following link:
https://enlitechnology.com/home/products/eqe-photon-electron-
conversion-testing/reps/

9. Thank you for your
time and
attention.
ENLITECH CONFIDENTIAL
9

10. 10
ENLITECHCONFIDENTIAL
• R&D and Production of Quantum Efficiency/
Spectral Response/IPCE Measuring Equipment
• Image Sensor/Photodiode/Semiconductor Testing System
• ISO/IEC 17025 (TAF) Certificated Lab QE/SR/Jsc Certification
• Innovative R&D/Technology Integration/Total Solutions
for Customers
Visit our website: https://enlitechnology.com/
ENLIGHTENYOUR IDEA
Headquarter:
ADD/ 1F., No.96, Luke 5th Rd., Luzhu Dist.,
Kaohsiung City, Taiwan (Kaohsiung Science Park)
TEL/ +886-7-6955669
Email: qeservice@enli.com.tw
Shanghai Branch:
Room 5I, Block 3, No.100, Lane 1505, Zu Chong Zhi Road,
Pudong New District, Shanghai, China
TEL/+86-21-31338780 / 18512186724