Mitigating VOC Loss in Single-Junction and Four-Terminal Tandem Perovskite/Si Photovoltaics with D-A Phthalocyanines Layers

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dc.authoridLi, Chi/0000-0002-8509-870X
dc.contributor.authorLi, Chi
dc.contributor.authorDogan, Sifa
dc.contributor.authorLi, Yuheng
dc.contributor.authorZhang, Huifeng
dc.contributor.authorTang, Shicheng
dc.contributor.authorYuan, Zhen
dc.contributor.authorLiang, Lusheng
dc.date.accessioned2025-03-17T12:27:46Z
dc.date.available2025-03-17T12:27:46Z
dc.date.issued2024
dc.departmentTarsus Üniversitesi
dc.description.abstractThe performance of perovskite solar cells (PSCs) is often constrained by significant open-circuit voltage (V-OC) losses attributed to non-radiative recombination processes induced by detrimental trap states. Surface treatments using passivating ligands typically involve single active binding sites on perovskite, posing challenges for effective passivation. Here, an aromatic donor-acceptor (D-A) configured phthalocyanine treatment is proposed to aim at dual-site passivation of uncoordinated lead ions and effective mitigation of shallow and deep-level defects on the perovskite surface. The resulting benign p-type surface facilitates a more favorable energy level alignment and reduces energetic mismatches at the perovskite/Spiro-OMeTAD interface. Pc-BTBC, with its aromatic D-A configuration, demonstrated compatibility with various perovskite compositions. Optimized PSCs achieves a power conversion efficiency (PCE) of 25.15% and reduces the V-OC deficit to 0.379 V. Furthermore, encapsulated devices exhibited enhanced stability under damp-heat conditions (ISOS-D-2, 50% RH, 65 degrees C) with a T-92 of 1000 h and maintained maximum power point tracking under continuous light in ambient air at 65 degrees C (ISOS-L-2). Notably, fabricated wide-bandgap semitransparent PSCs (ST-PSCs) achieved a PCE of 20.29%, while four-terminal perovskite/silicon tandem solar cells (4T-P/STSCs) demonstrated an efficiency of 29.38%. This study provides insights into minimizing V-OC losses and represents significant progress toward commercializing perovskite photovoltaics.
dc.description.sponsorshipNational Natural Science Foundation of China; Belt and Road scholarship; [22175180]; [52311530673]
dc.description.sponsorshipP.G. acknowledges the financial support from the National Natural Science Foundation of China (Grant nos. 22175180, 52311530673). M.I. thanks the financial support of the Belt and Road scholarship. HZWTECH is thanked for allowing the use of the DS-PAW and BDF code in Device Studio. The authors also gratefully acknowledge HZWTECH for supporting the computational resources.
dc.identifier.doi10.1002/aenm.202402856
dc.identifier.issn1614-6832
dc.identifier.issn1614-6840
dc.identifier.scopus2-s2.0-85203091460
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/aenm.202402856
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2425
dc.identifier.wosWOS:001307769900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofAdvanced Energy Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectD-pi-A structure
dc.subjectperovskite solar cell
dc.subjectphthalocyanine
dc.subjecttandem solar cell
dc.subjectV-OC loss
dc.titleMitigating VOC Loss in Single-Junction and Four-Terminal Tandem Perovskite/Si Photovoltaics with D-A Phthalocyanines Layers
dc.typeArticle

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