中文版 | English
Title

Organic Solar Cell With Efficiency Over 20% and V-OC Exceeding 2.1 V Enabled by Tandem With All-Inorganic Perovskite and Thermal Annealing-Free Process

Author
Corresponding AuthorKyaw, Aung Ko Ko
Publication Years
2022-07-01
DOI
Source Title
EISSN
2198-3844
Abstract
Organic solar cells (OSCs) based on polymer donor and non-fullerene acceptor achieve power conversion efficiency (PCE) more than 19% but their poor absorption below 550 nm restricts the harvesting of high-energy photons. In contrast, wide bandgap all-inorganic perovskites limit the absorption of low-energy photons and cause serious below bandgap loss. Therefore, a 2-terminal (2T) monolithic perovskite/organic tandem solar cell (TSC) incorporating wide bandgap CsPbI2Br is demonstrated as front cell absorber and organic PM6:Y6 blend as rear cell absorber, to extend the absorption of OSCs into high-energy photon region. The perovskite sub-cell, featuring a sol-gel prepared ZnO/SnO2 bilayer electron transporting layer, renders a high open-circuit voltage (V-OC). The V-OC is further enhanced by employing thermal annealing (TA)-free process in the fabrication of rear sub-cell, demonstrating a record high V-OC of 2.116 V. The TA-free Ag/PFN-Br interface in organic sub-cell facilitates charge transport and restrains nonradiative recombination. Consequently, a remarkable PCE of 20.6% is achieved in monolithic 2T-TSCs configuration, which is higher than that of both reported single junction and tandem OSCs, demonstrating that tandem with wide bandgap all-inorganic perovskite is a promising strategy to improve the efficiency of OSCs.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of China[62150610496] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515010916] ; Department of Education of Guangdong Province University Innovation Foundation[2021KTSCX107] ; Australian Research Council[DP210103006]
WOS Research Area
Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS Subject
Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Accession No
WOS:000829330000001
Publisher
EI Accession Number
20223012402589
EI Keywords
Bromine compounds ; Energy dissipation ; Energy gap ; II-VI semiconductors ; Lead compounds ; Open circuit voltage ; Organic solar cells ; Perovskite solar cells ; Photons ; Sols ; Zinc oxide
ESI Classification Code
Minerals:482.2 ; Energy Losses (industrial and residential):525.4 ; Solar Cells:702.3 ; Semiconducting Materials:712.1 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:9
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/359490
DepartmentDepartment of Electrical and Electronic Engineering
理学院_化学系
Affiliation
1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Guangdong Univ Key Lab Adv Quantum Dot Displays &, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
3.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia
4.Queensland Univ Technol, Ctr Mat Sci, Brisbane, Qld 4000, Australia
First Author AffilicationDepartment of Electrical and Electronic Engineering
Corresponding Author AffilicationDepartment of Electrical and Electronic Engineering
First Author's First AffilicationDepartment of Electrical and Electronic Engineering
Recommended Citation
GB/T 7714
Gu, Xiaoyu,Lai, Xue,Zhang, Yuniu,et al. Organic Solar Cell With Efficiency Over 20% and V-OC Exceeding 2.1 V Enabled by Tandem With All-Inorganic Perovskite and Thermal Annealing-Free Process[J]. ADVANCED SCIENCE,2022.
APA
Gu, Xiaoyu.,Lai, Xue.,Zhang, Yuniu.,Wang, Teng.,Tan, Wen Liang.,...&Kyaw, Aung Ko Ko.(2022).Organic Solar Cell With Efficiency Over 20% and V-OC Exceeding 2.1 V Enabled by Tandem With All-Inorganic Perovskite and Thermal Annealing-Free Process.ADVANCED SCIENCE.
MLA
Gu, Xiaoyu,et al."Organic Solar Cell With Efficiency Over 20% and V-OC Exceeding 2.1 V Enabled by Tandem With All-Inorganic Perovskite and Thermal Annealing-Free Process".ADVANCED SCIENCE (2022).
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