All-perovskite tandem solar cells with 3D/3D bilayer perovskite heterojunction - Nature
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Abstract . All-perovskite tandem solar cells promise higher power-conversion efficiency (PCE) than single-junction perovskite solar cells while maintaining a low fabrication cost 1–3 . However, their performance is still largely constrained by the subpar performance of mixed Pb-Sn narrow-bandgap perovskite subcells, mainly due to a high trap density on the perovskite film surface 4–6 . Although heterojunctions with intermixed 2D/3D perovskites could reduce surface recombination, this common strategy induces transport losses and thereby limits device fill factors 7–9 . Here we develop an immiscible 3D/3D bilayer perovskite heterojunction with type-II band structure at the Pb-Sn perovskite/electron-transport layer interface to suppress the interfacial non-radiative recombination and facilitate charge extraction. The bilayer perovskite heterojunction is formed by depositing a layer of lead-halide wide-bandgap perovskite on top of the mixed Pb-Sn narrow-bandgap perovskite via a hybrid evaporation/solution processing method. This heterostructure allows us to increase the PCE of Pb-Sn perovskite solar cells having a 1.2-?m-thick absorber to 23.8%, together with a high open-circuit voltage ( V oc ) of 0.873 V and a high fill factor of 82.6%. We thereby demonstrate a record-high PCE of 28.5% (certified 28.0%) in all-perovskite tandem solar cell. The encapsulated tandem devices retain over 90% of their initial performance after 600 hours of continuous operation under simulated one-sun illumination. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution Access options . Access through your institution Access through your institution Change institution Buy or subscribe Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 24,99?? /?30?days cancel any time Learn more Subscription info for Chinese customers We have a dedicated website for our Chinese customers. Please go to naturechina.com to subscribe to this journal. Go to naturechina.com Rent or buy this article Get just this article for as long as you need it $39.95 Learn more Prices may be subject to local taxes which are calculated during checkout Additional access options: . Log in . Learn about institutional subscriptions . Read our FAQs . Contact customer support . Author information . Author notes These authors contributed equally: Renxing Lin, Yurui Wang, Qianwen Lu Authors and Affiliations . National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China Renxing Lin,?Yurui Wang,?Qianwen Lu,?Jiayi Li,?Han Gao,?Yuan Gao,?Hongjiang Li,?Jin Wen,?Pu Wu,?Chenshuaiyu Liu,?Siyang Zhao,?Ke Xiao,?Zhou Liu,?Yu Deng,?Ludong Li?&?Hairen Tan School of Physical Sciences, University of Science and technology of China, Hefei, China Beibei Tang?&?Fengjia Fan i-Lab & Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou, China Changzeng Ding?&?Changqi Ma Authors Renxing Lin View author publications You can also search for this author in PubMed ? Google Scholar Yurui Wang View author publications You can also search for this author in PubMed ? Google Scholar Qianwen Lu View author publications You can also search for this author in PubMed ? Google Scholar Beibei Tang View author publications You can also search for this author in PubMed ? Google Scholar Jiayi Li View author publications You can also search for this author in PubMed ? Google Scholar Han Gao View author publications You can also search for this author in PubMed ? Google Scholar Yuan Gao View author publications You can also search for this author in PubMed ? Google Scholar Hongjiang Li View author publications You can also search for this author in PubMed ? Google Scholar Changzeng Ding View author publications You can also search for this author in PubMed ? Google Scholar Jin Wen View author publications You can also search for this author in PubMed ? Google Scholar Pu Wu View author publications You can also search for this author in PubMed ? Google Scholar Chenshuaiyu Liu View author publications You can also search for this author in PubMed ? Google Scholar Siyang Zhao View author publications You can also search for this author in PubMed ? Google Scholar Ke Xiao View author publications You can also search for this author in PubMed ? Google Scholar Zhou Liu View author publications You can also search for this author in PubMed ? Google Scholar Changqi Ma View author publications You can also search for this author in PubMed ? Google Scholar Yu Deng View author publications You can also search for this author in PubMed ? Google Scholar Ludong Li View author publications You can also search for this author in PubMed ? Google Scholar Fengjia Fan View author publications You can also search for this author in PubMed ? Google Scholar Hairen Tan View author publications You can also search for this author in PubMed ? Google Scholar Corresponding author . Correspondence to Hairen Tan . Supplementary information . Supplementary Information . Reporting Summary . Rights and permissions . Reprints and Permissions About this article . Cite this article . Lin, R., Wang, Y., Lu, Q. et al. All-perovskite tandem solar cells with 3D/3D bilayer perovskite heterojunction. Nature (2023). https://doi.org/10.1038/s41586-023-06278-z Download citation Received : 07 November 2022 Accepted : 31 May 2023 Published : 08 June 2023 DOI : https://doi.org/10.1038/s41586-023-06278-z Share this article . Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative Comments . By submitting a comment you agree to abide by our Terms and Community Guidelines . If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate. .
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