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    "title": "Photovoltaics & Applications | Ooitech Technical Blog",
    "description": "Cell and module technology explained: TOPCon, BC, HJT and perovskite routes, the materials used, the machines that build them and the process behind every watt.",
    "keywords": "photovoltaics, solar cell technology, TOPCon, BC, HJT, perovskite, module manufacturing",
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            "text": "Photovoltaics & Applications"
        },
        {
            "level": 2,
            "text": "Our Latest Photovoltaics & Applications"
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        {
            "level": 3,
            "text": "How to Cut Multi-Piece Solar Cells Better?"
        },
        {
            "level": 3,
            "text": "Inside a 600MW TOPCon Full-Auto Solar Panel Production"
        },
        {
            "level": 3,
            "text": "BC-TOPCon's Last Backside Battle: Keep"
        },
        {
            "level": 3,
            "text": "UVID in TOPCon Solar Cells: Non-Contact IV Testing"
        },
        {
            "level": 3,
            "text": "Steel Plate Printing + Local Poly-Silicon Finger:"
        },
        {
            "level": 3,
            "text": "Cell Manufacturing Process: Back Contact Cell to Module"
        },
        {
            "level": 3,
            "text": "TOPCon Cell UVID Study: Non-Contact IV Testing Tracks"
        },
        {
            "level": 3,
            "text": "Latest PIP Research: Chemical Evolution"
        },
        {
            "level": 3,
            "text": "Silver-Free Solar Cells: Copper Paste and Low-Silver"
        },
        {
            "level": 3,
            "text": "Above 26.3% Efficiency: What's Left on the Rear?"
        },
        {
            "level": 3,
            "text": "Photovoltaic Module UV Light-Conversion Film:"
        },
        {
            "level": 3,
            "text": "Why Metallization Sets the Efficiency Ceiling"
        },
        {
            "level": 3,
            "text": "Request A Quote"
        },
        {
            "level": 2,
            "text": "We deliver expertise you can trust our service"
        },
        {
            "level": 3,
            "text": "Cost-Effective Advantages"
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            "level": 3,
            "text": "Our Experience Team"
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            "level": 3,
            "text": "15+ Years Industry Experience"
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            "level": 2,
            "text": "What Our Client Say's about us"
        },
        {
            "level": 3,
            "text": "Diarra From Africa"
        },
        {
            "level": 3,
            "text": "Mark"
        },
        {
            "level": 3,
            "text": "KTECH"
        },
        {
            "level": 3,
            "text": "Amjad"
        },
        {
            "level": 3,
            "text": "Jizzakh Polytechnic Institute"
        },
        {
            "level": 2,
            "text": "Our Latest Products"
        },
        {
            "level": 3,
            "text": "SC-20A Full Automatic Solar Cell Laser Cutting Machine"
        },
        {
            "level": 3,
            "text": "OPT-M960B EL & VI Tester: 0.1mm/pixel, Intel i7"
        },
        {
            "level": 3,
            "text": "Solar Cells for PV Modules"
        },
        {
            "level": 3,
            "text": "OPT-S110H Offline String EL Tester: ≤2s, 4.6MP"
        },
        {
            "level": 3,
            "text": "Solar Panel Layup and Bussing Machine: 10W to 600W Modules, TOPCon BC PERC HJT"
        },
        {
            "level": 3,
            "text": "Solar Panel Sealant and Tape: Silicone, Butyl, PET"
        }
    ],
    "wordCount": 1596,
    "markdown": "# Photovoltaics & Applications | Ooitech Technical Blog\n\n> Cell and module technology explained: TOPCon, BC, HJT and perovskite routes, the materials used, the machines that build them and the process behind every watt.\n\n- [All Articles](Blog.html)\n- [Energy Storage & Applications 4](./Energy-Storage.html)\n- [Photovoltaics & Applications 118](./Photovoltaics.html)\n- [Electrical & Fundamentals 23](./Electrical-Fundamentals.html)\n- [Industry & Insights 22](./Industry-Insights.html)\n\n## Our Latest Photovoltaics & Applications\n\n![How to Cut Multi-Piece Solar Cells Better?](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_15ce62ff44f3df3b9754e60099c852f1.webp)\n\n- [** Jerry](./how-to-cut-multi-piece-solar-cells-better-the-counterintuitive-truth-about-edge-loss-in-n-type-topcon-shj-and-bc-cells.html)\n- [** 348 Views](./how-to-cut-multi-piece-solar-cells-better-the-counterintuitive-truth-about-edge-loss-in-n-type-topcon-shj-and-bc-cells.html)\n\n### How to Cut Multi-Piece Solar Cells Better?\n\nA Nano Energy study from Soochow University overturns 20 years of industry wisdo···\n\n![Inside a 600MW TOPCon Full-Auto Solar Panel Production](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026080545797359.jpg.webp)\n\n- [** Jerry](./inside-a-600mw-topcon-full-auto-solar-panel-production-line.html)\n- [** 309 Views](./inside-a-600mw-topcon-full-auto-solar-panel-production-line.html)\n\n### Inside a 600MW TOPCon Full-Auto Solar Panel Production\n\nA close look at Ooitech's 600MW TOPCon full-auto solar panel production line, fr···\n\n![BC-TOPCon's Last Backside Battle: Keep](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026080419779051.webp)\n\n- [** Jerry](./bc-topcons-last-backside-battle-keep-the-bottom-siox-frozen-zone-the-middle-layer-with-alox-siox.html)\n- [** 259 Views](./bc-topcons-last-backside-battle-keep-the-bottom-siox-frozen-zone-the-middle-layer-with-alox-siox.html)\n\n### BC-TOPCon's Last Backside Battle: Keep\n\nHow next-gen back-contact TOPCon cells push past 27% by freezing the bottom SiOx···\n\n![UVID in TOPCon Solar Cells: Non-Contact IV Testing](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_17aeb9818f648b0a8226d34423b2a293.webp)\n\n- [** Jerry](./uvid-in-topcon-solar-cells-non-contact-iv-testing-tracks-passivation-degradation-and-6-72-efficiency-loss.html)\n- [** 324 Views](./uvid-in-topcon-solar-cells-non-contact-iv-testing-tracks-passivation-degradation-and-6-72-efficiency-loss.html)\n\n### UVID in TOPCon Solar Cells: Non-Contact IV Testing\n\nA study on UV induced degradation (UVID) in TOPCon solar cells using non-contact···\n\n![Steel Plate Printing + Local Poly-Silicon Finger:](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_625b79809fbdf15023835c47b28098ee.webp)\n\n- [** Jerry](./steel-plate-printing-local-poly-silicon-finger-topcons-next-move-is-already-happening.html)\n- [** 312 Views](./steel-plate-printing-local-poly-silicon-finger-topcons-next-move-is-already-happening.html)\n\n### Steel Plate Printing + Local Poly-Silicon Finger:\n\nHow steel plate printing and local poly-silicon (poly finger) technology help TO···\n\n![Cell Manufacturing Process: Back Contact Cell to Module](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026073010101126.webp)\n\n- [** Jerry](./from-cell-to-module-the-manufacturing-process-of-back-contact-bc-solar-modules.html)\n- [** 449 Views](./from-cell-to-module-the-manufacturing-process-of-back-contact-bc-solar-modules.html)\n\n### Cell Manufacturing Process: Back Contact Cell to Module\n\nA step-by-step look at how back-contact (BC) solar cells become finished modules···\n\n![TOPCon Cell UVID Study: Non-Contact IV Testing Tracks](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_17aeb9818f648b0a8226d34423b2a293.webp)\n\n- [** Jerry](./topcon-cell-uvid-study-non-contact-iv-testing-tracks-passivation-degradation-and-6-72-efficiency-loss.html)\n- [** 271 Views](./topcon-cell-uvid-study-non-contact-iv-testing-tracks-passivation-degradation-and-6-72-efficiency-loss.html)\n\n### TOPCon Cell UVID Study: Non-Contact IV Testing Tracks\n\nA TOPCon solar cell UVID study uses ToF-SIMS, depth-profile XPS, EQE and electri···\n\n![Latest PIP Research: Chemical Evolution](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_7f797526b12f6e13e0c7d70cc0cabf75.webp)\n\n- [** Jerry](./latest-pip-research-chemical-evolution-and-electrical-degradation-of-topcon-solar-cells-under-uv-exposure.html)\n- [** 320 Views](./latest-pip-research-chemical-evolution-and-electrical-degradation-of-topcon-solar-cells-under-uv-exposure.html)\n\n### Latest PIP Research: Chemical Evolution\n\nA detailed review of recent Progress in Photovoltaics research explaining how UV···\n\n![Silver-Free Solar Cells: Copper Paste and Low-Silver](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_e128f05e3e415d4dfd34ec5626ec0f3a.webp)\n\n- [** Jerry](./the-silver-free-debate-returns-less-silver-copper-paste-or-copper-plating-which-route-is-more-reliable.html)\n- [** 464 Views](./the-silver-free-debate-returns-less-silver-copper-paste-or-copper-plating-which-route-is-more-reliable.html)\n\n### Silver-Free Solar Cells: Copper Paste and Low-Silver\n\nA detailed comparison of silver reduction, silver-coated copper paste, copper-al···\n\n![Above 26.3% Efficiency: What's Left on the Rear?](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026072418751974.webp)\n\n- [** Jerry](./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-back-ju.html)\n- [** 274 Views](./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-back-ju.html)\n\n### Above 26.3% Efficiency: What's Left on the Rear?\n\nA technical comparison of the 26.34% back-junction p-TOPCon cell and the 26.66% ···\n\n![Photovoltaic Module UV Light-Conversion Film:](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_e39f3cfaa82636ad260570401f1ff97e.webp)\n\n- [** Jerry](./photovoltaic-module-uv-light-conversion-film-functions-working-principle-and-key-quality-parameters.html)\n- [** 365 Views](./photovoltaic-module-uv-light-conversion-film-functions-working-principle-and-key-quality-parameters.html)\n\n### Photovoltaic Module UV Light-Conversion Film:\n\nUV light-conversion film converts ultraviolet light into blue light within the 4···\n\n![Why Metallization Sets the Efficiency Ceiling](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_f9ffca1de7a427f300420d4a7cdf1faf.webp)\n\n- [** Jerry](./why-metallization-sets-the-efficiency-ceiling-for-high-efficiency-solar-cells.html)\n- [** 357 Views](./why-metallization-sets-the-efficiency-ceiling-for-high-efficiency-solar-cells.html)\n\n### Why Metallization Sets the Efficiency Ceiling\n\nA technical look at why metal-semiconductor contact, contact resistance, passiva···\n\n- [**](/Photovoltaics_5.html)\n- [**](/Photovoltaics_7.html)\n\n![](/template/ooitech/assets/img/shape/06.png)\n\n![](https://cdn.ooitech.com/runtime/image/w800_h700_fitblur_v2_w800_h700_fitblur_v2_1757399770541443.webp)\n\n### Request A Quote\n\nAll uploads are secure and confidential.\n\n## We deliver expertise you can trust our service\n\nDirect-from-Factory Equipment.\n\n![](/template/ooitech/assets/img/icon/money-2.svg)\n\n### Cost-Effective Advantages\n\nWe deliver exceptional value, maximizing results while optimizing budgets for clients.\n\n![](/template/ooitech/assets/img/icon/staff.svg)\n\n### Our Experience Team\n\nOur skilled professionals specialize in innovative solutions and tailored strategies.\n\n![](/template/ooitech/assets/img/icon/certified.svg)\n\n### 15+ Years Industry Experience\n\nDeep expertise ensures reliable, trend-aware, and proven outcomes for success.\n\n![](https://cdn.ooitech.com/static/upload/image/20250910/1757477357667605.webp )\n\n![](https://cdn.ooitech.com/static/upload/image/20250910/1757477724911512.webp)\n\n![](/template/ooitech/assets/img/shape/06.png)\n\n## What Our Client Say's about us\n\nClient testimonials praise our deep understanding of their challenges, which leads to innovative solutions and strong ROI. Long-term collaborations—some over a decade—demonstrate their trust and satisfaction. Their success stories drive us to continually exceed expectations. [Know More **](#quote-form)\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nthank you for ooitech's professional support and on time after service.\n\n![](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1784509010217979.webp)\n\n### Diarra From Africa\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThank you again so much again for the very big big help for improving and fixing the factory and also teaching the workers how to use the machines\n\n![](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1757479675272137.webp)\n\n### Mark\n\nBIPV Philippines\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThanks to Ooitech for providing highly suitable BC solar cell experimental equipment.\n\n![](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1776426122864564.webp)\n\n### KTECH\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThanks to Ooitech for providing the fully automated production equipment—your installation and after-sales service have been excellent.\n\n![](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026041720921238.webp)\n\n### Amjad\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nA man with a big soul. Thank you very much for your visit Mr Wu. Thank you very much for the services provided in installing equipment and training my students. The kindest person and professional in his field\n\n![](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026041716444445.webp)\n\n### Jizzakh Polytechnic Institute\n\n## Our Latest Products\n\n![SC-20A Full Automatic Solar Cell Laser Cutting Machine](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1772440338787287.webp)\n\n- [** ooitech](./SC-20A-Full-Automatic-Solar-Cell-Laser-Cutting-Machine-High-Precision-Scribing-Breaking-Solution.html)\n- [** 80264](./SC-20A-Full-Automatic-Solar-Cell-Laser-Cutting-Machine-High-Precision-Scribing-Breaking-Solution.html)\n\n### SC-20A Full Automatic Solar Cell Laser Cutting Machine\n\nSC-20A full automatic laser cutting machine for solar cells and silicon wafers, featuring 1500 cells/hour capacity, ±100um positioning accuracy\n\n![OPT-M960B EL & VI Tester: 0.1mm/pixel, Intel i7](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1774351816741704.webp)\n\n- [** Rachael](./solar-panel-el-tester-and-vi-tester-machine-opt-m960b-m951b-m950b-ooitech-solar-module-el-testing-equipment.html)\n- [** 43886](./solar-panel-el-tester-and-vi-tester-machine-opt-m960b-m951b-m950b-ooitech-solar-module-el-testing-equipment.html)\n\n### OPT-M960B EL & VI Tester: 0.1mm/pixel, Intel i7\n\nOoitech offers professional solar panel EL tester and VI tester machines (OPT-M960B, OPT-M951B, OPT-M950B) with SONY industrial cameras\n\n![Solar Cells for PV Modules](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1774581692247238.webp)\n\n- [** Rachael](./Professional-Solar-Cell-Solutions-for-Modern-PV-Panel-Manufacturing-Ooitech.html)\n- [** 71578](./Professional-Solar-Cell-Solutions-for-Modern-PV-Panel-Manufacturing-Ooitech.html)\n\n### Solar Cells for PV Modules\n\nSolar cell processing equipment for PERC, TOPCon, HJT & BC cells – cutting, stringing, testing. Supports G1/M6/M10/M12 sizes.\n\n![OPT-S110H Offline String EL Tester: ≤2s, 4.6MP](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1774350940561245.webp)\n\n- [** Rachael](./offline-string-el-tester-opt-s110h-solar-cell-string-electroluminescence-testing-equipment-ooitech.html)\n- [** 88470](./offline-string-el-tester-opt-s110h-solar-cell-string-electroluminescence-testing-equipment-ooitech.html)\n\n### OPT-S110H Offline String EL Tester: ≤2s, 4.6MP\n\nOPT-S110H Offline String EL Tester from Ooitech delivers high-speed electroluminescence inspection for solar cell strings up to 1250mm.\n\n![Solar Panel Layup and Bussing Machine: 10W to 600W Modules, TOPCon BC PERC HJT](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_1790216004194913.webp)\n\n- [** ooitech](./solar-panel-layup-and-bussing-machine.html)\n- [** 363](./solar-panel-layup-and-bussing-machine.html)\n\n### Solar Panel Layup and Bussing Machine: 10W to 600W Modules, TOPCon BC PERC HJT\n\nSolar panel layup and bussing machine in six models, SAW-100A to SAW-600A, for 10 W to 600 W modules: high-frequency bus ribbon soldering, 15 s per group, inline or standalone.\n\n![Solar Panel Sealant and Tape: Silicone, Butyl, PET](https://cdn.ooitech.com/runtime/image/w800_h600_fitblur_v2_2026032711586064.jpg.webp)\n\n- [** Rachael](./PV-Module-Sealant-Tape-Solutions-Essential-Components-for-Solar-Panel-Reliability.html)\n- [** 73369](./PV-Module-Sealant-Tape-Solutions-Essential-Components-for-Solar-Panel-Reliability.html)\n\n### Solar Panel Sealant and Tape: Silicone, Butyl, PET\n\nSolar panel sealant and tape for module assembly: silicone frame sealant, butyl tape and busbar insulation tape, UV-resistant for 25-year outdoor exposure.\n",
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