Today, with the rapid development of photovoltaic technology, the testing accuracy and efficiency of
standard solar cells are directly related to the reliability of scientific research achievements and the
industrialization process. However, the differences in electrode spacing among different battery
models, multi-electrode layouts and complex testing environments pose strict requirements for the
compatibility, stability and operational convenience of the fixtures. With over two decades of
technological accumulation in the field of optoelectronics, Beijing Saifan Optoelectronic Instrument
Co., Ltd. has launched the 7-SCF08 3M battery fixture, which addresses industry pain points through
innovative design and provides efficient solutions for photovoltaic research and industrial applications.
Precise adaptation, covering the testing requirements of multi-electrode standard batteries
The 7-SCF08 is specially designed for standard solar cells with an electrode spacing of 2.54mm
(1/10 inch) and no more than six electrodes. Its open structure can flexibly adapt to cells of different
sizes, avoiding test errors caused by fixture parameter fixation. For instance, in the research and
development of new photovoltaic materials such as perovskite cells and heterojunction cells, this
fixture can quickly adapt to the size changes of the cells through modular adjustment, ensuring the
precise connection between the electrodes and the testing system. In addition, its dedicated locking
seat can adjust and keep the test surface level in real time. Even when facing thin-film batteries with
micron-level thickness, it can ensure uniform contact pressure and avoid battery damage caused by
improper clamping.
Band switch +BNC interface to achieve efficient integration of four-wire testing
In electrical performance testing, the stability of signal transmission and the anti-interference ability
are the keys to data accuracy. The 7-SCF08 is equipped with two standard BNC interfaces, supporting a
four-wire test mode. It can simultaneously output current and voltage signals, significantly reducing
the impact of contact resistance on test results. For instance, in quantum efficiency (QE) testing, the
series resistance and parallel resistance of the battery can be precisely separated through a four-wire
connection, thereby enhancing the resolution of spectral response analysis. In addition, the built-in
band switch design of the fixture enables users to switch the test electrodes with one click, eliminating
the need to repeatedly disassemble the battery and increasing the testing efficiency of multi-electrode
batteries by more than 50%.
Compatible with multi-dimensional testing systems, build a complete solution
SOFN Instruments is well aware of the systematic requirements for photovoltaic testing. The
7-SCF08 can be seamlessly integrated with accessories such as the 7-SCF06A/B three-dimensional
probe holder and the 7-SCF09 closed 3M battery fixture, forming a comprehensive test solution
covering all dimensions including spectral response, I-V characteristics, and dark current. For example,
by combining the 7-SCF06A three-dimensional probe base, users can achieve electrical performance
analysis with a spatial resolution of micrometer level, which is suitable for defect location and carrier
mobility research of perovskite cells. When paired with the 7-SCF09 closed fixture, it can simulate the
stability test of batteries in high-temperature and high-humidity environments, meeting the verification
requirements of outdoor application scenarios for photovoltaic modules.
Quality certification and case endorsement safeguard scientific research and industrial applications
As a "specialized, refined, distinctive and innovative" small and medium-sized enterprise in Beijing,
SOFN Instruments has always taken the ISO9001 quality system certification as the benchmark
and strictly controlled the production process. During the research and development of 7-SCF08, the
company integrated two core patents, namely spectral testing technology and precision motion control
technology, to ensure the outstanding performance of the fixture in terms of micron-level positioning
accuracy and millisecond-level response speed. At present, this product has been widely applied in
benchmark projects such as Xinjiang Institute of Physics and Chemistry, Chinese Academy of Sciences
and Anhui University, and its stability and durability have been highly recognized by the industry. For
instance, in the perovskite battery pilot line of Anhui University, the 7-SCF08 has been running continuously
for over 2,000 hours without any poor contact issues, significantly reducing the testing cost.
The service network and technical support provide full protection for the scientific research process
SOFN Instruments has established a nationwide service system. Through the service hotline
010-80885970 and the wechat official account platform, it provides users with 7× 24-hour technical
support. From product selection, installation and commissioning to later maintenance, our professional
team will provide full support throughout the process. For instance, in response to the issue raised by
customers that "the edges of the battery cells are fragile", the engineers of Saifan optimized the elastic
contact plate design of the fixture, reducing the battery damage rate to below 0.1%, and provided a free
customized fixture modification plan.
In the current era of accelerated iteration of photovoltaic technology, the 7-SCF08 3M battery fixture,
with its three core advantages of precise adaptation, stable transmission, and system integration, has
become a key tool for promoting the industrialization of standard solar cell research. Beijing Saifan
Optoelectronic Instrument Co., Ltd. will continue to empower scientific research with innovative
technologies and explore the future of green energy together with global partners.
Contact SOFN Instruments immediately to get a customized solution!
Official website: www.7-s.com.cn
National Service Hotline: 010-80885970
Address: 4th Floor, No. 3 Office Building, Fanghe Zhengyuan Courtyard, No. 16 Guanghua Road,
Tongzhou District, Beijing
SOFN Instruments - Let every beam of light become the energy that changes the world.
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