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DOI | 10.1126/science.aav7911 |
SOLAR CELLS Carrier lifetimes of > 1 mu s in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells | |
Tong, Jinhui1,2; Song, Zhaoning3,4; Kim, Dong Hoe1,7; Chen, Xihan1; Chen, Cong3,4; Palmstrom, Axel F.1; Ndione, Paul F.1; Reese, Matthew O.1; Dunfield, Sean P.1,2,5; Reid, Obadiah G.1,2; Liu, Jun1; Zhang, Fei1; Harvey, Steven P.1; Li, Zhen1; Christensen, Steven T.1; Teeter, Glenn1; Zhao, Dewei3,4; Al-Jassim, Mowafak M.1; van Hest, Maikel F. A. M.1; Beard, Matthew C.1; Shaheen, Sean E.2,6; Berry, Joseph J.1; Yan, Yanfa3,4; Zhu, Kai1 | |
2019-05-03 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 364期号:6439页码:475-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; South Korea |
英文摘要 | All-perovskite-based polycrystalline thin-film tandem solar cells have the potential to deliver efficiencies of >30%. However, the performance of all-perovskite-based tandem devices has been limited by the lack of high-efficiency, low-band gap tin-lead (Sn-Pb) mixed-perovskite solar cells (PSCs). We found that the addition of guanidinium thiocyanate (GuaSCN) resulted in marked improvements in the structural and optoelectronic properties of Sn-Pb mixed, low-band gap (similar to 1.25 electron volt) perovskite films. The films have defect densities that are lower by a factor of 10, leading to carrier lifetimes of greater than 1 microsecond and diffusion lengths of 2.5 micrometers. These improved properties enable our demonstration of >20% efficient low-band gap PSCs. When combined with wider-band gap PSCs, we achieve 25% efficient four-terminal and 23.1% efficient two-terminal all-perovskite-based polycrystalline thin-film tandem solar cells. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000466809600032 |
WOS关键词 | LOW SURFACE RECOMBINATION ; DEFECT PASSIVATION ; PHOTOVOLTAICS ; FABRICATION ; VELOCITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/201350 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Natl Renewable Energy Lab, Golden, CO 80401 USA; 2.Univ Colorado, Renewable & Sustainable Energy Inst, Boulder, CO 80309 USA; 3.Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA; 4.Univ Toledo, Wright Ctr Photovolta Innovat & Commercializat, Toledo, OH 43606 USA; 5.Univ Colorado, Mat Sci & Engn Program, Boulder, CO 80309 USA; 6.Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA; 7.Sejong Univ, Dept Nanotechnol & Adv Mat Engn, Seoul 05006, South Korea |
推荐引用方式 GB/T 7714 | Tong, Jinhui,Song, Zhaoning,Kim, Dong Hoe,et al. SOLAR CELLS Carrier lifetimes of > 1 mu s in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells[J]. SCIENCE,2019,364(6439):475-+. |
APA | Tong, Jinhui.,Song, Zhaoning.,Kim, Dong Hoe.,Chen, Xihan.,Chen, Cong.,...&Zhu, Kai.(2019).SOLAR CELLS Carrier lifetimes of > 1 mu s in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells.SCIENCE,364(6439),475-+. |
MLA | Tong, Jinhui,et al."SOLAR CELLS Carrier lifetimes of > 1 mu s in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells".SCIENCE 364.6439(2019):475-+. |
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