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About
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Microscope Thermal Stage | Spectrometer and Integrating Sphere Thermal Stage | Electrical Test Thermal Stage
Dual-engine power in the optoelectronics field: the synergistic innovation of GaN‑based mini‑LEDs and Chongguang’s hot‑and‑cold stages.
Release date:
2026-04-24
At the forefront of research, precision temperature-control equipment is essential for unraveling the intrinsic physical mechanisms of optoelectronic devices. For example, a study published by Xiamen University in ACS Photonics (IF = 7) highlights the pivotal role of the Chongguang TS300T-PM cryo‑thermal stage in the temperature‑dependent spectroscopic analysis of GaN‑based green mini‑LEDs. By enabling wide‑range temperature control from −196 °C to 300 °C and integrating microscopic hyperspectral imaging, the research team successfully elucidated the local exciton radiative recombination mechanism. They revealed the synergistic regulation of electron–phonon coupling by polarization‑induced Coulomb screening and band‑filling effects, providing a theoretical foundation for optimizing device color purity and luminous efficiency through strain engineering.
In the current era of rapid iteration in semiconductor optoelectronic technology, GaN base mini-LED Technology is reshaping the foundational architecture of the display and communications industries through disruptive innovation. Its high‑brightness, long‑life characteristics in high‑resolution displays, coupled with its high‑speed, low‑latency advantages in visible light communication, are delivering transformative solutions across consumer electronics, intelligent transportation, industrial IoT, and other domains.
Despite challenges such as massive data migration and efficiency optimization, with the synergistic advancement of materials science, device fabrication, and system integration technologies, GaN base mini-LED It still holds the potential to become a core growth driver for the optoelectronics industry.
At the forefront of research, precision temperature-control equipment is essential for elucidating the intrinsic physical mechanisms of devices. Taking Xiamen University as an example, in “… ACS Photonics 》（ IF=7 ) Taking the published study as an example, Chongguang TS300T-PM The hot-and-cold table is in. GaN Base green mini-LED plays a central role in the study of temperature-dependent spectroscopy. By - 196 °C to 300 By employing wide-temperature-range regulation at ℃ and integrating microscopic hyperspectral imaging, the research team successfully elucidated the local exciton radiative recombination mechanism, revealing the effects of polarization-field–induced Coulomb screening and band-filling on electrons. - The cooperative regulation mechanism of phonon coupling provides a theoretical foundation for optimizing device color purity and luminescence efficiency through strain engineering.
Journal Title: “ ACS Photonics 》
Article Title: « Origin of the Inhomogeneous Electroluminescence of GaN-Based Green Mini-LEDs Unveiled by Microscopic Hyperspectral Imaging 》
Impact Factor: 7
Client Organization: Xiamen University
Application Products: TSL300
Figure 3 : When the temperature range is 25 To 300K At that time, the micro LED was in 100 μA ( 0.5 A/cm² ) Three-dimensional plot of the electroluminescence spectrum under current. The raw spectrum is shown as a black dashed line in the waterfall plot. The fitted spectrum for the zero-phonon line is shaded in green, while the fitted spectra for the satellite emission peaks are shaded in yellow and orange, respectively.
Re-illumination TS300T-PM The temperature‑controlled chamber, a professional‑grade variable‑temperature testing platform, employs liquid‑nitrogen closed‑loop cooling and… PID Intelligent temperature control algorithm, achieving ± 0.01 Temperature control accuracy of ℃. Its modular design supports in-situ electrical and optical measurements under vacuum and ambient‑atmosphere conditions, X/Y axis 100mm The high-precision sample stage of the system can be seamlessly integrated with confocal microscopes and micro‑spectrometers, providing an end-to-end solution—from material characterization to device performance analysis—for fields such as semiconductor devices and two-dimensional materials.
Figure 4 : System Diagram
Temperature range
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-196 °C ~300 °C
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Temperature resolution
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0.01 °C
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Temperature control accuracy
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± 0.01 °C
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Maximum heating rate
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50 °C /min |
Maximum cooling rate
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-30 °C /min |
Sample stage material
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Silver-plated
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Sample stage size
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Phi 16mm |
Maximum amplitude
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≤ 2um |
Clear aperture diameter
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Phi 2mm |
Front observation window size
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Phi 18mm |
Minimum objective working distance
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3.5mm |
Minimum condenser working distance
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12mm |
X 、 Y Working distance of the axis
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± 6mm |
Displacement resolution
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0.001 mm |
Appearance dimensions
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140*95*20mm |
Cavity net weight
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1 kg |
As Mini-LED Technology-oriented Micro-LED As technology evolves, high-precision temperature‑controlled testing equipment is becoming a critical enabler for accelerating innovation cycles. Congtical Technology remains committed to R&D, leveraging breakthroughs in temperature‑control technology to help researchers push the performance limits of optoelectronic materials and devices, and to elevate the semiconductor optoelectronics industry to new heights.
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Products suitable for this type of application
Polarizing Microscope Heating and Cooling Stage
TES120T-PM, TES180T-PM, TE300T-PM, TS600T-PM, TT600T-PM
Contact Information
Room 1201–1202, Building 1, Dingchuang International, No. 58 Guanggu Avenue, East Lake New Technology Development Zone, Wuhan City
WhatsApp：8618502799852
Engineer Li：+8618502799852
Email box：marketing@congtical.com
Congtical Technology