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    Our Latest Blog

    BC-TOPCon's Last Backside Battle: Keep the Bottom SiOx Frozen, Zone the Middle Layer with AlOx/SiOx
    04 Aug

    BC-TOPCon's Last Backside Battle: Keep the Bottom SiOx Frozen, Zone the Middle Layer with AlOx/SiOx

    How next-gen back-contact TOPCon cells push past 27% by freezing the bottom SiOx···

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    UVID in TOPCon Solar Cells: Non-Contact IV Testing Tracks Passivation Degradation and 6.72% Efficiency Loss
    04 Aug

    UVID in TOPCon Solar Cells: Non-Contact IV Testing Tracks Passivation Degradation and 6.72% Efficiency Loss

    A study on UV induced degradation (UVID) in TOPCon solar cells using non-contact···

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    Steel Plate Printing + Local Poly-Silicon Finger: TOPCon's Next Move Is Already Happening
    04 Aug

    Steel Plate Printing + Local Poly-Silicon Finger: TOPCon's Next Move Is Already Happening

    How steel plate printing and local poly-silicon (poly finger) technology help TO···

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    From Cell to Module: The Manufacturing Process of Back-Contact (BC) Solar Modules
    30 Jul

    From Cell to Module: The Manufacturing Process of Back-Contact (BC) Solar Modules

    A step-by-step look at how back-contact (BC) solar cells become finished modules···

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    TOPCon Cell UVID Study: Non-Contact IV Testing Tracks Passivation Degradation and 6.72% Efficiency Loss
    27 Jul

    TOPCon Cell UVID Study: Non-Contact IV Testing Tracks Passivation Degradation and 6.72% Efficiency Loss

    A TOPCon solar cell UVID study uses ToF-SIMS, depth-profile XPS, EQE and electri···

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    Latest PIP Research: Chemical Evolution and Electrical Degradation of TOPCon Solar Cells Under UV Exposure
    24 Jul

    Latest PIP Research: Chemical Evolution and Electrical Degradation of TOPCon Solar Cells Under UV Exposure

    A detailed review of recent Progress in Photovoltaics research explaining how UV···

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    The Silver-Free Debate Returns: Less Silver, Copper Paste, or Copper Plating—Which Route Is More Reliable?
    24 Jul

    The Silver-Free Debate Returns: Less Silver, Copper Paste, or Copper Plating—Which Route Is More Reliable?

    A detailed comparison of silver reduction, silver-coated copper paste, copper-al···

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    Above 26.3% Efficiency, What Is Left to Optimize on the Rear? n-Type Rear Contacts Pursue Bifacial Synergy, While p-Type Rear Contacts Move Toward Bac
    24 Jul

    Above 26.3% Efficiency, What Is Left to Optimize on the Rear? n-Type Rear Contacts Pursue Bifacial Synergy, While p-Type Rear Contacts Move Toward Bac

    A technical comparison of the 26.34% back-junction p-TOPCon cell and the 26.66% ···

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    EL Shows You Where It Is Dark, but Not Why: The Four-Layer Pyramid of PV Inspection Tools
    22 Jul

    EL Shows You Where It Is Dark, but Not Why: The Four-Layer Pyramid of PV Inspection Tools

    EL imaging can reveal dark areas, broken fingers, cracks, and current-distributi···

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    Photovoltaic Module UV Light-Conversion Film: Functions, Working Principle, and Key Quality Parameters
    21 Jul

    Photovoltaic Module UV Light-Conversion Film: Functions, Working Principle, and Key Quality Parameters

    UV light-conversion film converts ultraviolet light into blue light within the 4···

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    Why Does Fill Factor Reveal Solar Cell Mass-Production Defects First?
    21 Jul

    Why Does Fill Factor Reveal Solar Cell Mass-Production Defects First?

    Learn why solar cell fill factor is highly sensitive to metallization, printing,···

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    Why Metallization Sets the Efficiency Ceiling for High-Efficiency Solar Cells
    20 Jul

    Why Metallization Sets the Efficiency Ceiling for High-Efficiency Solar Cells

    A technical look at why metal-semiconductor contact, contact resistance, passiva···

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    Our Products

    Our Latest Products

    Solar Panel EL Tester & VI Tester Machine OPT-M960B M951B M950B | Ooitech Solar Module EL Testing Equipment
    2025-09-06 11:38:03

    Solar Panel EL Tester & VI Tester Machine OPT-M960B M951B M950B | Ooitech Solar Module EL Testing Equipment

    Ooitech offers professional solar panel EL tester and VI tester machines (OPT-M960B, OPT-M951B, OPT-M950B) with SONY industrial cameras, automatic image mosaicing, MES interfacing, and high-precision electroluminescence and visual inspection for solar mod

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    Portable HD EL Tester for Solar Module Inspection Portable EL tester
    2026-05-12 18:21:37

    Portable HD EL Tester for Solar Module Inspection Portable EL tester

    Portable high definition EL tester with 24MP auto focus infrared camera for solar module electroluminescence testing, supporting USB and WiFi connection for laboratory and field inspection.

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    SC-20D Dual-Laser Solar Cell Cutting Machine for Shingled Solar Cell Production
    2025-08-17 17:41:21

    SC-20D Dual-Laser Solar Cell Cutting Machine for Shingled Solar Cell Production

    SC-20D is the advanced version of SC-20A, specially designed for shingled solar cell production, featuring dual laser heads and two lasers working simultaneously for higher-throughput cutting.

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    Gsolar Solar Panel Tester Sun Simulator GIV-20A2616 | A+A+A+ Class Solar Module IV Tester
    2025-09-08 13:49:42

    Gsolar Solar Panel Tester Sun Simulator GIV-20A2616 | A+A+A+ Class Solar Module IV Tester

    Gsolar GIV-20A2616 A+A+A+ class solar panel tester and sun simulator with 2600mm x 1600mm testing area, 10ms-100ms long pulse duration, and GSN technology for accurate IV testing of crystalline, PERC, HJT, N-type, IBC, shingled, and half-cell solar module

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    Solar Panel Tester Sun Simulator OTMT-A | AAA Class Solar Module IV Tester | Ooitech
    2026-03-27 19:16:32

    Solar Panel Tester Sun Simulator OTMT-A | AAA Class Solar Module IV Tester | Ooitech

    Ooitech OTMT-A Solar Panel Tester Sun Simulator is an AAA class solar module IV testing system featuring xenon lamp technology, IEC 60904-9 compliance, ±2% light non-uniformity, and 300,000 flash lamp life. Ideal for mono-Si and poly-Si solar panel produc

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    SUNPOWER Back Contact Cell Welding Machine SL-1000 | IBC Back Contact Solar Cell Stringer
    2025-09-05 21:43:58

    SUNPOWER Back Contact Cell Welding Machine SL-1000 | IBC Back Contact Solar Cell Stringer

    SUNPOWER Back Contact Cell Welding Machine SL-1000 by Ooitech features electromagnetic welding, CCD+SCARA robot positioning, dual cell loading, and automatic loading/unloading. Capacity up to 600 pcs/h for 1/3 cut cells. Supports 125mm and 166mm cell size

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