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Pei F, Chen Y, Wang Q, Li L, Ma Y, Liu H, Duan Y, Song T, Xie H, Liu G, Yang N, Zhang Y, Zhou W, Kang J, Niu X, Li K, Wang F, Xiao M, Yuan G, Wu Y, Zhu C, Wang X, Zhou H, Wu Y, Chen Q. A binary 2D perovskite passivation for efficient and stable perovskite/silicon tandem solar cells. Nat Commun 2024; 15:7024. [PMID: 39147746 PMCID: PMC11327242 DOI: 10.1038/s41467-024-51345-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 08/02/2024] [Indexed: 08/17/2024] Open
Abstract
To achieve high power conversion efficiency in perovskite/silicon tandem solar cells, it is necessary to develop a promising wide-bandgap perovskite absorber and processing techniques in relevance. To date, the performance of devices based on wide-bandgap perovskite is still limited mainly by carrier recombination at their electron extraction interface. Here, we demonstrate assembling a binary two-dimensional perovskite by both alternating-cation-interlayer phase and Ruddlesden-Popper phase to passivate perovskite/C60 interface. The binary two-dimensional strategy takes effects not only at the interface but also in the bulk, which enables efficient charge transport in a wide-bandgap perovskite solar cell with a stabilized efficiency of 20.79% (1 cm2). Based on this absorber, a monolithic perovskite/silicon tandem solar cell is fabricated with a steady-state efficiency of 30.65% assessed by a third party. Moreover, the tandem devices retain 96% of their initial efficiency after 527 h of operation under full spectral continuous illumination, and 98% after 1000 h of damp-heat testing (85 °C with 85% relative humidity).
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Affiliation(s)
- Fengtao Pei
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
- Auner Technology Co., Ltd., Beijing, 100081, China
| | - Yihua Chen
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Qianqian Wang
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Liang Li
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yue Ma
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Huifen Liu
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ye Duan
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
- Auner Technology Co., Ltd., Beijing, 100081, China
| | - Tinglu Song
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Haipeng Xie
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Guilin Liu
- School of Science, Jiangnan University, Wuxi, 214122, P. R. China
| | - Ning Yang
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Auner Technology Co., Ltd., Beijing, 100081, China
| | - Ying Zhang
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Wentao Zhou
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jiaqian Kang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiuxiu Niu
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Kailin Li
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Feng Wang
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Mengqi Xiao
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Guizhou Yuan
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yuetong Wu
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Cheng Zhu
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xueyun Wang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Huanping Zhou
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yiliang Wu
- Auner Technology Co., Ltd., Beijing, 100081, China
| | - Qi Chen
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
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Kovalchuk NM, Sagisaka M, Komiyama H, Simmons MJH. Spreading of aqueous surfactant solutions on oil substrates: Superspreaders vs non-superspreaders. J Colloid Interface Sci 2024; 661:1046-1059. [PMID: 38335789 DOI: 10.1016/j.jcis.2024.02.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/17/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
HYPOTHESIS The question of why aqueous solutions of some surfactants demonstrate a rapid spreading (superspreading) over hydrophobic solid substrates, while solutions of other similar surfactants do not, has no definitive explanation despite numerous previous studies. The suggested hypothesis for this study assumes that once the spreading coefficient of surfactant is positive, there is a concentration range for solutions of any surfactant which demonstrates rapid spreading. As it is impossible to calculate spreading coefficients for solid substrates, we compare the spreading performance of known superspreaders and non-superspreaders on liquid (oil) substrate. EXPERIMENTS The kinetics of spreading of aqueous solutions of a series of branched ionic surfactants and non-ionic trisiloxane surfactants on two liquid substrates was studied and compared with the spreading of a surfactant-free liquid, silicone oil. Both dynamic and equilibrium spreading coefficients were calculated using measured surface and interfacial tensions. FINDINGS There is no difference in spreading rate on liquid substrate between solutions of surfactants proven as superspreaders (while spreading on solid substrate) or non-superspreaders. A rapid spreading (superspreading) with the characteristic rate of spreading O(102-103) mm2/s occurs if the dynamic spreading coefficients exceeds the positive threshold value. If the dynamic spreading coefficient is negative or slightly positive, complete wetting still occurs, but the spreading is slow with the spreading rate is O(1) mm2/s. Spreading exponents for surfactant solutions in the rapid spreading regime are considerably larger than for the surfactant-free liquid. A number of spreading and dewetting patterns were observed depending on the surfactant type, its concentration and substrate.
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Affiliation(s)
- Nina M Kovalchuk
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK.
| | - Masanobu Sagisaka
- Graduate School of Science and Technology, Hirosaki University, 036-8561, Japan
| | - Hinata Komiyama
- Graduate School of Science and Technology, Hirosaki University, 036-8561, Japan
| | - Mark J H Simmons
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK
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Iasella S, Sharma R, Garoff S, Tilton RD. Interaction of impinging marangoni fields. J Colloid Interface Sci 2024; 653:807-820. [PMID: 37757714 DOI: 10.1016/j.jcis.2023.09.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/09/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
HYPOTHESIS Surface tension gradient driven Marangoni flows originating from multiple sources are important to many industrial and medical applications, but the theoretical literature focuses on single surfactant sources. Understanding how two spreading surfactant sources interact allows insights from single source experiments to be applied to multi-source applications. Two key features of multi-source spreading - source translation and source deformation - can be explained by transport modeling of a two-source system. MODELING Numerical simulations of two oleic acid disks placed at varying initial separation distances on a glycerol subphase were performed using COMSOL Multiphysics and compared to spreading of a single surfactant source. FINDINGS Interaction of two spreading sources can be split into three regimes: the independent regime - where each source is unaffected by the other, the interaction regime - where the presence of a second source alters one or more features of the spreading dynamics, and the quasi-one disk regime - where the two sources merge together. The translation of the sources, manifested as increasing separation distance between disk centers of mass, is driven by the flow fields within the subphase and the resultant surface deformation, while deformation of the sources occurs only once the surfactant fronts of the two sources meet.
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Affiliation(s)
- Steven Iasella
- Department of Chemical Engineering, Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Ramankur Sharma
- Department of Chemical Engineering, Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Stephen Garoff
- Department of Physics, Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Robert D Tilton
- Department of Chemical Engineering, Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA; Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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Wei X, Bradley LC. Accessing Thin Film Wetting Regimes during Polymer Growth by Initiated Chemical Vapor Deposition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11550-11556. [PMID: 36108132 DOI: 10.1021/acs.langmuir.2c00979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We investigate the growth of a fluorinated polymer via initiated chemical vapor deposition onto a suite of isotropic and mesogenic liquids with a range of refractive indices. The polymer morphology at fluid interfaces was found to deviate from conformal films predicted by the positive spreading coefficient, and the resulting morphology is attributed to long-range van der Waals interactions during the deposition process. Experiments systematically vary the deposition conditions and compare the liquid phase (isotropic or nematic) to evaluate the effect of kinetic factors and the liquid substrate phase on the interfacial polymer morphology and spatial organization.
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Affiliation(s)
- Xiaoshuang Wei
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts01003, United States
| | - Laura C Bradley
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts01003, United States
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