1
|
Huang Y, Yu G, Khan D, Wang S, Sui Y, Yang X, Zhuang Y, Tang J, Gao H, Xin M, Aierken A, Tang Z. A Functional Biological Molecule Restores the PbI 2 Residue-Induced Defects in Two-Step Fabricated Perovskites. Molecules 2023; 28:7120. [PMID: 37894599 PMCID: PMC10608809 DOI: 10.3390/molecules28207120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
Coating the perovskite layer via a two-step method is an adaptable solution for industries compared to the anti-solvent process. But what about the impact of unreacted PbI2? Usually, it is generated during perovskite conversion in a two-step method and considered beneficial within the grain boundaries, while also being accused of enhancing the interface defects and nonradiative recombination. Several additives are mixed in PbI2 precursors for the purpose of improving the perovskite crystallinity and hindering the Pb2+ defects. Herein, in lieu of adding additives to the PbI2, the effects of the PbI2 residue via the electron transport layer/perovskite interface modification are explored. Consequently, by introducing artemisinin decorated with hydrophobic alkyl units and a ketone group, it reduces the residual PbI2 and improves the perovskites' crystallinity by coordinating with Pb2+. In addition, artemisinin-deposited perovskite enhances both the stability and efficiency of perovskite solar cells by suppressing nonradiative recombination.
Collapse
Affiliation(s)
- Yuanmei Huang
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Shenzhen 518118, China
| | - Guoping Yu
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Shenzhen 518118, China
| | - Danish Khan
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Shenzhen 518118, China
| | - Shuanglin Wang
- College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Yujie Sui
- College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Xin Yang
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
| | - Yu Zhuang
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
| | - Jun Tang
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Shenzhen 518118, China
| | - Huaxi Gao
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
| | - Ming Xin
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
| | - Abuduwayiti Aierken
- School of Energy and Environment, Yunnan Normal University, Juxian Road 768, Chenggong, Kunming 650500, China
| | - Zeguo Tang
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Shenzhen 518118, China
| |
Collapse
|
2
|
Pancini L, Montecucco R, Larini V, Benassi A, Mirani D, Pica G, De Bastiani M, Doria F, Grancini G. A fluorescent sensor to detect lead leakage from perovskite solar cells. MATERIALS ADVANCES 2023; 4:2410-2417. [PMID: 37287527 PMCID: PMC10242455 DOI: 10.1039/d3ma00068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/15/2023] [Indexed: 06/09/2023]
Abstract
Hybrid perovskites have been considered a hot material in the semiconductor industry; included as an active layer in advanced devices, from light emitting applications to solar cells, where they lead as a new strategic solution, they promise to be the next generation high impact class of materials. However, the presence - in most cases - of lead in their matrix, or lead byproducts as a consequence of material degradation, such as PbI2, is currently hindering their massive deployment. Here, we develop a fluorescent organic sensor (FS) based on the Pb-selective BODIPY fluorophore that emits when the analyte - lead in this case - is detected. We carried out a fluorimetric analysis to quantify the trace concentration of Pb2+ released from lead-based perovskite solar cells, exploring different material compositions. In particular, we immersed the devices in rainwater, to simulate the behavior of the devices under atmospheric conditions when the sealing is damaged. The sensor is studied in a phosphate buffer solution (PBS) at pH 4.5 to simulate the pH of acidic rain, and the results obtained are compared with ICP-OES measurements. We found that with fluorometric analysis, lead concentration could be calculated with a detection limit as low as 5 μg l-1, in agreement with ICP-OES analysis. In addition, we investigated the possibility of using the sensor on a solid substrate for direct visualization to determine the presence of Pb. This can constitute the base for the development of a Pb-based label that can switch on if lead is detected, alerting any possible leakage.
Collapse
Affiliation(s)
- Lorenzo Pancini
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Riccardo Montecucco
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Valentina Larini
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Alessandra Benassi
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Diego Mirani
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Giovanni Pica
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Michele De Bastiani
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Filippo Doria
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| | - Giulia Grancini
- Department of Chemistry & INSTM Università di Pavia Via T. Taramelli 14 Pavia 27100 Italy
| |
Collapse
|
3
|
Xiang H, He J, Ran R, Zhou W, Wang W, Shao Z. Iodide/triiodide redox shuttle-based additives for high-performance perovskite solar cells by simultaneously passivating the cation and anion defects. NANOSCALE 2023; 15:4344-4352. [PMID: 36757208 DOI: 10.1039/d2nr06710b] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Halide perovskite solar cells (PSCs) have received remarkably increasing interests due to their facile fabrication procedures, use of cost-effective raw materials, and high power conversion efficiencies (PCEs) during the past 10 years. Nevertheless, the state-of-the-art organic-inorganic PSCs suffer from high defect concentration and inferior humid/thermal stability, significantly restricting the widespread applications of PSCs. More specifically, point defects including metallic lead (Pb0) and halide iodine (I0) are easily generated in Pb/I-based PSCs during fabrication processes and operational conditions due to the inferior interaction between the anions and cations in halide perovskites and promote detrimental carrier recombination and ion migration, leading to inferior PCEs and durability of the PSCs. Herein, to tackle the above-mentioned issues, iodide/triiodide (I-/I3-) redox shuttles as a new additive were introduced to simultaneously passivate the cation and anion defects of methylammonium lead iodide (MAPbI3)-based PSCs. In particular, I-/I3- redox shuttles play a vital role in regenerating the cation (Pb0) and anion (I0) defects through the redox cycles of Pb0/Pb2+ and I0/I-. Consequently, the cell with an optimized amount of I-/I3- additive generated a superior PCE of 20.4%, which was 12% higher than the pristine device (18.2%). Furthermore, the introduction of the I-/I3- additive remarkably improved the humid and thermal stability of MAPbI3-based PSCs. This work manifests the importance of the design of redox shuttle-based additives to boost the efficiency and durability of organic-inorganic PSCs.
Collapse
Affiliation(s)
- Huimin Xiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Jingsheng He
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Ran Ran
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Wei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Zongping Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia
| |
Collapse
|
4
|
Cai Q, Yao Y, Lu Y, Wang M, Zhang Y, Song D, Xu Z, Li X, Wei D. Stable perovskite solar cells with 22% efficiency enabled by inhibiting migration/loss of iodide ions. Phys Chem Chem Phys 2023; 25:6955-6962. [PMID: 36805571 DOI: 10.1039/d2cp04422f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Iodide ions (I- and I3-) in perovskites tend to migrate resulting in phase segregation and degradation of perovskite films and devices under illumination or operation conditions. In order to overcome this intrinsic difficulty, passivation and additive strategies have been developed in many studies. In this work, we introduced polyetheramine (PEA) into perovskite films to inhibit the migration and loss of iodides and suppress defects related to these migrated ions. The perovskite films with PEA barely suffered iodide loss even under long-term ultraviolet (UV) illumination and possessed a lower trap density than that of the pristine films before and after aging under UV illumination. Density functional theory (DFT) calculations revealed that PEA can form strong interactions with iodides and Pb2+ in perovskites via PbO and H-I bonds, and the iodide ions (I- and I3-) could be locked firmly by PEA, preventing them from migration or loss. Using this method, the efficiency of perovskite solar cells (PSCs) can be improved from 19.71% (without PEA) to 22.02% (with PEA). After 200 h of maximum power point (MPP) tracking, the efficiency of PSCs with PEA remained 89% of its initial value and that of PSCs without PEA fully degraded.
Collapse
Affiliation(s)
- Qingrui Cai
- Fujian Normal University, College of Physics and Energy, FuZhou, 350117, Fujian, P. R. China.
| | - Yao Yao
- Fujian Normal University, College of Physics and Energy, FuZhou, 350117, Fujian, P. R. China.
| | - Yao Lu
- Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing, 100044, P. R. China
| | - Mingliang Wang
- Fujian Normal University, College of Physics and Energy, FuZhou, 350117, Fujian, P. R. China.
| | - Yanqiu Zhang
- Fujian Normal University, College of Physics and Energy, FuZhou, 350117, Fujian, P. R. China.
| | - Dandan Song
- Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing, 100044, P. R. China
| | - Zheng Xu
- Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing, 100044, P. R. China
| | - Xiaodan Li
- Xiamen Univ. Technol., Sch. Mat. Sci. & Engn., Fujian Prov. Key Lab Funct. Mat. & Applicat., Xiamen, 361024, Fujian, P. R. China
| | - Dong Wei
- Fujian Normal University, College of Physics and Energy, FuZhou, 350117, Fujian, P. R. China.
| |
Collapse
|