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Research & Development
Perovskite solar cell based on Prussian blue achieves 26.9% efficiency Researchers have used Prussian Blue nanoparticles to improve the efficiency and stability of perovskite solar cells, achieving efficiencies of up to 26.9%. The approach also enabled the fabrication of large-area modules with certified efficiencies of 22.9% and promising results in accelerated ageing and outdoor stability tests.
Emiliano Bellini
1 hour ago
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Research & Development
Longi sets 28.29% world record for single-junction silicon solar cell efficiency The result was confirmed by Germany’s Institute for Solar Energy Research Hamelin (ISFH).
Emiliano Bellini
Sep 24, 2026
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Umgebaute handelsübliche Kamera misst Leerlaufspannung von Solarzellen
Research & Development
Modified consumer camera can measure solar cell open-circuit voltage German researchers have modified and calibrated a low-cost consumer camera to quantitatively measure electroluminescence from silicon solar cells and modules. The method determines external luminescent quantum efficiency and uses it to derive the corresponding open-circuit voltage
Emiliano Bellini
Sep 24, 2026
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Research & Development
Scientists build 33.3%-efficient perovskite-silicon tandem solar cell processed in ambient air Chinese researchers developed a PNCC polymer hole-transport layer that enables efficient and stable perovskite solar cells to be fabricated under ambient conditions. The material was used in a perovskite-silicon tandem cell that achieved 33.3% efficiency and a certified efficiency of 33.0%.
Emiliano Bellini
Sep 21, 2026
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Research & Development
Researchers build 27.39%-efficient inverted perovskite solar cell based on new molecular design Chinese researchers have developed a molecular additive that reduces defects in perovskite solar cells, enabling a power conversion efficiency of 27.39%. The approach was also used in bifacial mini-modules with efficiencies above 22% and 99.6% power retention after more than 5,000 hours of continuous operation.
Emiliano Bellini
Sep 06, 2026
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Research & Development
New research confirms negligible LeTID degradation in TOPCon solar cells Researchers have found that light- and elevated-temperature-induced degradation (LeTID) has a limited impact on n-type TOPCon solar cells compared with earlier p-type PERC technology. Optimized firing conditions and laser-enhanced contact optimisation can further suppress degradation, with industrial TOPCon cells showing efficiency losses within acceptable warranty tolerances.
Emiliano Bellini
Sep 01, 2026
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Research & Development
Solvent-free perovskite-silicon tandem solar cell achieves 27.3% efficiency German researchers have developed a fully solvent-free perovskite-silicon tandem solar cell using sequential evaporation, achieving a power conversion efficiency of 27.1%. The scalable approach also demonstrated significant stability, retaining 97.06% of its initial efficiency after 6,800 hours of dark storage under nitrogen.
Emiliano Bellini
Aug 31, 2026
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Research & Development
AZO-based HJT solar cells more vulnerable to damp-heat-induced degradation, study finds Researchers have found that aluminum-doped zinc oxide-based silicon heterojunction cells are more vulnerable to damp-heat-induced degradation than their indium tin oxide-based counterparts. To address this issue, they introduced a magnesium fluoride capping layer that significantly improved damp-heat stability by slowing moisture penetration and corrosion.
Emiliano Bellini
Aug 25, 2026
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Research & Development
Mass-scale reuse pilot project finds 15% of second-life solar modules fail to meet safety requirements Australian researchers have identified two scalable routes for electrical safety qualification of second-life PV modules: silicone backsheet repair and faster parallel wet-leakage testing. A Queensland pilot found that 15% of 2,200 reuse-ready modules failed the wet-leakage test, highlighting the need for dedicated safety screening while modified testing could reduce costs and processing time.
Emiliano Bellini
Aug 24, 2026