Single-crystalline TiO2 Nanoparticles for Narrowing the Scalability Gap towards Stable and Efficient Perovskite Modules [* Cross-Reference *]

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Yong Ding; Bin Ding; Hiroyuki Kanda; Onovbaramwen Jennifer Usiobo; Thibaut Gallet; Zhenhai Yang; Yan Liu; Hao Huang; Jiang Sheng; Cheng Liu; Yi Yang; Valentin I. E. Queloz; Xianfu Zhang; Jean‐Nicolas Audinot; Alex Redinger; Wei Dang; Edoardo Mosconi; Wen Luo; Filippo De Angelis; Mingkui Wang; Jihuai Wu; Guan‐Jun Yang; Songyuan Dai; Paul J. Dyson; Mohammad Khaja Nazeeruddin, 2026, "Single-crystalline TiO2 Nanoparticles for Narrowing the Scalability Gap towards Stable and Efficient Perovskite Modules [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.DL76DG, LIST Open Repository, V1

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Description	Abstract Remarkable progress in power conversion efficiency of perovskite solar cells (PSCs) has been achieved over the last decade, reaching 25.5%. However, transferring these accomplishments from individual small-size devices into large-area modules while preserving their commercial competitiveness compared to other thin-film solar cells remains a challenge. A major obstacle is to reduce the resistive losses and the number of intrinsic defects of electron transport layers (mesoporous TiO 2 , ETL) and to fabricate high-quality large-area perovskite films. Here, we report a facile solvothermal method to synthesize single-crystalline TiO 2 rhombus-like nanoparticles with exposed {001} facets. Owing to their low lattice mismatch with the perovskite absorber, high electron mobility and lower density of defects, single-crystalline TiO 2 nanoparticle-based small-size devices (0.09 cm 2 ) achieve an efficiency of 24.05% and a fill factor of 84.7%. Importantly, these devices maintain about 90% of their initial performance after continuous operation for 1400 h. Combined with vacuum quenching-assisted techniques, we have fabricated large-area modules and obtained a certified efficiency of 22.72% with an active area of nearly 24 cm 2 . This represents the highest efficiency modules with the lowest efficiency loss between small-size devices and modules, enabling to reproducibly fabricate stable and efficient PSC modules. (2021-07-26) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.21203/rs.3.rs-737440/v1 for the original and latest version of the publication* (2026-07-01)
Subject	Engineering; Physics
Keyword	Scalability, Perovskite (structure), Nanoparticle, Materials science, Nanotechnology, Optoelectronics, Computer science, Chemical engineering, Operating system, Engineering
License/Data Use Agreement	CC BY 4.0


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Persistent Identifier	perma:LIST.DL76DG
Publication Date	2026-07-06
Title	Single-crystalline TiO2 Nanoparticles for Narrowing the Scalability Gap towards Stable and Efficient Perovskite Modules [* Cross-Reference *]
Other Identifier	https://doi.org/10.21203/rs.3.rs-737440/v1 OpenAlex ID: https://openalex.org/W3187512805
Author	Yong Ding (North China Electric Power University) - ORCID: https://orcid.org/0000-0002-4921-0979 Bin Ding (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0001-6798-0646 Hiroyuki Kanda (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0002-0327-8775 Onovbaramwen Jennifer Usiobo (Luxembourg Institute of Science and Technology) Thibaut Gallet (University of Luxembourg, ORCID) - ORCID: https://orcid.org/0000-0001-8494-3206 Zhenhai Yang (Chinese Academy of Sciences) - ORCID: https://orcid.org/0000-0002-0429-972X Yan Liu (Xi’an University) - ORCID: https://orcid.org/0000-0002-7337-5052 Hao Huang (Hebei University) - ORCID: https://orcid.org/0000-0002-0774-4374 Jiang Sheng (Chinese Academy of Sciences) Cheng Liu (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0002-3509-951X Yi Yang (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0002-9659-6704 Valentin I. E. Queloz (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0002-0351-917X Xianfu Zhang (North China Electric Power University) - ORCID: https://orcid.org/0000-0003-3925-852X Jean‐Nicolas Audinot (Luxembourg Institute of Science and Technology) - ORCID: https://orcid.org/0000-0002-4966-7653 Alex Redinger (University of Luxembourg) - ORCID: https://orcid.org/0000-0002-2958-3102 Wei Dang (Hebei University) - ORCID: https://orcid.org/0000-0002-8356-1086 Edoardo Mosconi (Italian Institute of Technology) - ORCID: https://orcid.org/0000-0001-5075-6664 Wen Luo (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0003-4250-6168 Filippo De Angelis (University of Perugia) - ORCID: https://orcid.org/0000-0003-3833-1975 Mingkui Wang (Huazhong University of Science and Technology) - ORCID: https://orcid.org/0000-0002-4516-2500 Jihuai Wu (Huaqiao University, ORCID) - ORCID: https://orcid.org/0000-0002-9820-1382 Guan‐Jun Yang (Hebei University) - ORCID: https://orcid.org/0000-0002-7753-3636 Songyuan Dai (North China Electric Power University) Paul J. Dyson (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0003-3117-3249 Mohammad Khaja Nazeeruddin (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0001-5955-4786
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Description	Abstract Remarkable progress in power conversion efficiency of perovskite solar cells (PSCs) has been achieved over the last decade, reaching 25.5%. However, transferring these accomplishments from individual small-size devices into large-area modules while preserving their commercial competitiveness compared to other thin-film solar cells remains a challenge. A major obstacle is to reduce the resistive losses and the number of intrinsic defects of electron transport layers (mesoporous TiO 2 , ETL) and to fabricate high-quality large-area perovskite films. Here, we report a facile solvothermal method to synthesize single-crystalline TiO 2 rhombus-like nanoparticles with exposed {001} facets. Owing to their low lattice mismatch with the perovskite absorber, high electron mobility and lower density of defects, single-crystalline TiO 2 nanoparticle-based small-size devices (0.09 cm 2 ) achieve an efficiency of 24.05% and a fill factor of 84.7%. Importantly, these devices maintain about 90% of their initial performance after continuous operation for 1400 h. Combined with vacuum quenching-assisted techniques, we have fabricated large-area modules and obtained a certified efficiency of 22.72% with an active area of nearly 24 cm 2 . This represents the highest efficiency modules with the lowest efficiency loss between small-size devices and modules, enabling to reproducibly fabricate stable and efficient PSC modules. (2021-07-26) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.21203/rs.3.rs-737440/v1 for the original and latest version of the publication* (2026-07-01)
Subject	Engineering; Physics
Keyword	Scalability Perovskite (structure) Nanoparticle Materials science Nanotechnology Optoelectronics Computer science Chemical engineering Operating system Engineering
Topic Classification	Perovskite Materials and Applications Electronic and Structural Properties of Oxides Quantum Dots Synthesis And Properties
Deposit Date	2021-07-26
Data Type	Preprint
Data Source	Research Square

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