Boosting the Efficiency of Perovskite/Organic Tandem Solar Cells via Enhanced Near-Infrared Absorption and Minimized Energy Losses

Cui, Xinyue1; Xie, Guanshui2; Liu, Yuqiang1; Xie, Xianqiang3; Zhang, Huarui4; Li, Hongxiang5; Cheng, Pei5; Lu, Guanghao3; Qiu, Longbin2; Bo, Zhishan1,4

2024-09-01

10.1002/adma.202408646

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

The compatibility of perovskite and organic photovoltaic materials in solution processing provides a significant advantage in the fabrication of high-efficiency perovskite/organic tandem solar cells. However, additional recombination losses can occur during exciton dissociation in organic materials, leading to energy losses in the near-infrared region of tandem devices. Consequently, a ternary organic rear subcell is designed containing two narrow-bandgap non-fullerene acceptors to enhance the absorption of near-infrared light. Simultaneously, a unique diffusion-controlled growth technique is adopted to optimize the morphology of the ternary active layer, thereby improving exciton dissociation efficiency. This innovation not only broadens the absorption range of near-infrared light but also facilitates the generation and effective dissociation of excitons. Owing to these technological improvements, the power conversion efficiency (PCE) of organic solar cells increased to 19.2%. Furthermore, a wide-bandgap perovskite front subcell is integrated with a narrow-bandgap organic rear subcell to develop a perovskite/organic tandem solar cell. Owing to the reduction in near-infrared energy loss, the PCE of this tandem device significantly improved, reaching 24.5%.

organic solar cells perovskite solar cells recombination losses tandem solar cells ternary structure

SCI

英语

通讯

Natural Science Foundation of Shandong Province["ZR2022QB141","2023HWYQ-087"] ; null[52303239] ; null[51933001]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001315179200001

WILEY-V C H VERLAG GMBH

Web of Science

1.Qingdao Univ, Coll Text & Clothing, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China
2.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Dept Mech & Energy Engn, Shenzhen Key Lab Intelligent Robot & Flexible Mfg, Shenzhen 518055, Peoples R China
3.Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Peoples R China
4.Beijing Normal Univ, Coll Chem, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China
5.Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

Cui, Xinyue,Xie, Guanshui,Liu, Yuqiang,et al. Boosting the Efficiency of Perovskite/Organic Tandem Solar Cells via Enhanced Near-Infrared Absorption and Minimized Energy Losses[J]. ADVANCED MATERIALS,2024.

Cui, Xinyue.,Xie, Guanshui.,Liu, Yuqiang.,Xie, Xianqiang.,Zhang, Huarui.,...&Bo, Zhishan.(2024).Boosting the Efficiency of Perovskite/Organic Tandem Solar Cells via Enhanced Near-Infrared Absorption and Minimized Energy Losses.ADVANCED MATERIALS.

Cui, Xinyue,et al."Boosting the Efficiency of Perovskite/Organic Tandem Solar Cells via Enhanced Near-Infrared Absorption and Minimized Energy Losses".ADVANCED MATERIALS (2024).