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000906937 1001_ $$0P:(DE-Juel1)169946$$aDuan, Weiyuan$$b0$$eCorresponding author
000906937 245__ $$aA route towards high‐efficiency silicon heterojunction solar cells
000906937 260__ $$aChichester$$bWiley$$c2022
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000906937 520__ $$aIn this work, we propose a route to achieve a certified efficiency of up to 24.51% for silicon heterojunction (SHJ) solar cell on a full-size n-type M2 monocrystalline-silicon Cz wafer (total area, 244.53 cm2) by mainly improving the design of the hydrogenated intrinsic amorphous silicon (a-Si:H) on the rear side of the solar cell and the back reflector. A dense second intrinsic a-Si:H layer with an optimized thickness can improve the vertical carrier transport, resulting in an improved fill factor (FF). In order to reduce the plasmonic absorption at the back reflector, a low-refractive-index magnesium fluoride (MgF2) is deposited before the Ag layer; this leads to an improved gain of short circuit current density (Jsc). In total, together with MgF2 double antireflection coating and other fine optimizations during cell fabrication process, ~1% absolute efficiency enhancement is finally obtained. A detailed loss analysis based on Quokka3 simulation is presented to confirm the design principles, which also gives an outlook of how to improve the efficiency further.
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000906937 536__ $$0G:(BMWi)0324198D$$aVerbundvorhaben: TuKaN - Tunnelkontakte auf N-Typ: für die Metallisierung mit Siebdruck, Teilvorhaben: Herstellung von Solarzellen mit passivierendem Tunnelkontakt und funktionalen Schichten aus katalytischer und plasmaunterstützter chemischer Gasphasenab (0324198D)$$c0324198D$$x2
000906937 536__ $$0G:(BMWi)0324351$$aTouch - Technologie- und Charakterisierungsplattform für die Entwicklung von hoch-effizienten Silizium-Heterostruktursolarzellen (0324351)$$c0324351$$x3
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000906937 7001_ $$0P:(DE-Juel1)130263$$aLambertz, Andreas$$b1
000906937 7001_ $$0P:(DE-Juel1)130219$$aBittkau, Karsten$$b2
000906937 7001_ $$0P:(DE-Juel1)173822$$aQiu, Depeng$$b3
000906937 7001_ $$0P:(DE-Juel1)178049$$aQiu, Kaifu$$b4
000906937 7001_ $$0P:(DE-Juel1)143905$$aRau, Uwe$$b5
000906937 7001_ $$0P:(DE-Juel1)130233$$aDing, Kaining$$b6
000906937 773__ $$0PERI:(DE-600)2023295-0$$a10.1002/pip.3493$$gVol. 30, no. 4, p. 384 - 392$$n4$$p384 - 392$$tProgress in photovoltaics$$v30$$x1062-7995$$y2022
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