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Lin HY, Jiang Z, Liu SC, Du Z, Hsu SE, Li YS, Qiu WJ, Yang H, Macdonald TJ, McLachlan MA, Lin CT. Overcoming Microstructural Defects at the Buried Interface of Formamidinium-Based Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:47763-47772. [PMID: 39188091 PMCID: PMC11403615 DOI: 10.1021/acsami.4c11052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Since the advent of formamidinium (FA)-based perovskite photovoltaics (PVs), significant performance enhancements have been achieved. However, a critical challenge persists: the propensity for void formation in the perovskite film at the buried perovskite-interlayer interface has a deleterious effect on device performance. With most emerging perovskite PVs adopting the p-i-n architecture, the specific challenge lies at the perovskite-hole transport layer (HTL) interface, with previous strategies to overcome this limitation being limited to specific perovskite-HTL combinations; thus, the lack of universal approaches represents a bottleneck. Here, we present a novel strategy that overcomes the formation of such voids (microstructural defects) through a film treatment with methylammonium chloride (MACl). Specifically, our work introduces MACl via a sequential deposition method, having a profound impact on the microstructural defect density at the critical buried interface. Our technique is independent of both the HTL and the perovskite film thickness, highlighting the universal nature of this approach. By employing device photoluminescence measurements and conductive atomic force microscopy, we reveal that when present, such voids impede charge extraction, thereby diminishing device short-circuit current. Through comprehensive steady-state and transient photoluminescence spectroscopy analysis, we demonstrate that by implementing our MACl treatment to remedy these voids, devices with reduced defect states, suppressed nonradiative recombination, and extended carrier lifetimes of up to 2.3 μs can be prepared. Furthermore, our novel treatment reduces the stringent constraints around antisolvent choice and dripping time, significantly extending the processing window for the perovskite absorber layer and offering significantly greater flexibility for device fabrication.
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Affiliation(s)
- Heng-Yi Lin
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Zhongyao Jiang
- Department of Materials, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, U.K
| | - Shi-Chun Liu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Zhaoyi Du
- Department of Materials, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, U.K
| | - Shih-En Hsu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Yun-Shan Li
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Wei-Jia Qiu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Hongta Yang
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Thomas J Macdonald
- Department of Electronic & Electrical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Martyn A McLachlan
- Department of Materials, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, U.K
| | - Chieh-Ting Lin
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
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2
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Hsu HC, Tsao JC, Yeh CH, Wu HT, Wu CT, Wu SH, Shih CF. Large-Area Perovskite Solar Module Produced by Introducing Self-Assembled L-Histidine Monolayer at TiO 2 and Perovskite Interface. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1315. [PMID: 39120420 PMCID: PMC11314024 DOI: 10.3390/nano14151315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/31/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
Perovskite solar cells have been proven to enhance cell characteristics by introducing passivation materials that suppress defect formation. Defect states between the electron transport layer and the absorption layer reduce electron extraction and carrier transport capabilities, leading to a significant decline in device performance and stability, as well as an increased probability of non-radiative recombination. This study proposes the use of an amino acid (L-Histidine) self-assembled monolayer material between the transport layer and the perovskite absorption layer. Surface analysis revealed that the introduction of L-Histidine improved both the uniformity and roughness of the perovskite film surface. X-ray photoelectron spectroscopic analysis showed a reduction in oxygen vacancies in the lattice and an increase in Ti4+, indicating that L-Histidine successfully passivated trap states at the perovskite and TiO2 electron transport layer interface. In terms of device performance, the introduction of L-Histidine significantly improved the fill factor (FF) because the reduction in interface defects could suppress charge accumulation and reduce device hysteresis. The FF of large-area solar modules (25 cm2) with L-Histidine increased from 55% to 73%, and the power conversion efficiency (PCE) reached 16.5%. After 500 h of aging tests, the PCE still maintained 91% of its original efficiency. This study demonstrates the significant impact of L-Histidine on transport properties and showcases its potential for application in the development of large-area perovskite module processes.
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Affiliation(s)
- Hung-Chieh Hsu
- Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (H.-C.H.); (J.-C.T.); (C.-H.Y.)
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Tainan 711010, Taiwan
| | - Jung-Che Tsao
- Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (H.-C.H.); (J.-C.T.); (C.-H.Y.)
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Tainan 711010, Taiwan
| | - Cheng-Hsien Yeh
- Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (H.-C.H.); (J.-C.T.); (C.-H.Y.)
- Applied High Entropy Technology (AHET) Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsuan-Ta Wu
- Department and Institute of Electrical Engineering, Minghsin University of Science and Technology, Hsinchu 30401, Taiwan;
| | - Chien-Te Wu
- Symbio, Inc., New Taipei City 241457, Taiwan;
| | - Shih-Hsiung Wu
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Tainan 711010, Taiwan
| | - Chuan-Feng Shih
- Department of Electrical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (H.-C.H.); (J.-C.T.); (C.-H.Y.)
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Tainan 711010, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan
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3
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Wu DT, Zhu WX, Dong Y, Daboczi M, Ham G, Hsieh HJ, Huang CJ, Xu W, Henderson C, Kim JS, Eslava S, Cha H, Macdonald TJ, Lin CT. Enhancing the Efficiency and Stability of Tin-Lead Perovskite Solar Cells via Sodium Hydroxide Dedoping of PEDOT:PSS. SMALL METHODS 2024:e2400302. [PMID: 38634222 DOI: 10.1002/smtd.202400302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Tin-lead (Sn-Pb) perovskite solar cells (PSCs) have gained interest as candidates for the bottom cell of all-perovskite tandem solar cells due to their broad absorption of the solar spectrum. A notable challenge arises from the prevalent use of the hole transport layer, PEDOT:PSS, known for its inherently high doping level. This high doping level can lead to interfacial recombination, imposing a significant limitation on efficiency. Herein, NaOH is used to dedope PEDOT:PSS, with the aim of enhancing the efficiency of Sn-Pb PSCs. Secondary ion mass spectrometer profiles indicate that sodium ions diffuse into the perovskite layer, improving its crystallinity and enlarging its grains. Comprehensive evaluations, including photoluminescence and nanosecond transient absorption spectroscopy, confirm that dedoping significantly reduces interfacial recombination, resulting in an open-circuit voltage as high as 0.90 V. Additionally, dedoping PEDOT:PSS leads to increased shunt resistance and high fill factor up to 0.81. As a result of these improvements, the power conversion efficiency is enhanced from 19.7% to 22.6%. Utilizing NaOH to dedope PEDOT:PSS also transitions its nature from acidic to basic, enhancing stability and exhibiting less than a 7% power conversion efficiency loss after 1176 h of storage in N2 atmosphere.
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Affiliation(s)
- Dong-Tai Wu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung, 402-27, Taiwan
| | - Wen-Xian Zhu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung, 402-27, Taiwan
| | - Yueyao Dong
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Matyas Daboczi
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Gayoung Ham
- Department of Energy Convergence and Climate Change, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hsing-Jung Hsieh
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung, 402-27, Taiwan
| | - Chi-Jing Huang
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung, 402-27, Taiwan
| | - Weidong Xu
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge, CB3 0AS, UK
| | - Charlie Henderson
- Department of Physics and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Ji-Seon Kim
- Department of Physics and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Salvador Eslava
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Hyojung Cha
- Department of Energy Convergence and Climate Change, Kyungpook National University, Daegu, 41566, Republic of Korea
- Department of Hydrogen and Renewable Energy, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Thomas J Macdonald
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Chieh-Ting Lin
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung, 402-27, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung City, 402, Taiwan
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Kerr R, Macdonald TJ, Tanner AJ, Yu J, Davies JA, Fielding HH, Thornton G. Zero Threshold for Water Adsorption on MAPbBr 3. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301014. [PMID: 37267942 DOI: 10.1002/smll.202301014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/19/2023] [Indexed: 06/04/2023]
Abstract
Hybrid organic-inorganic perovskites (HOIPs) have shown great promise in a wide range of optoelectronic applications. However, this performance is inhibited by the sensitivity of HOIPs to various environmental factors, particularly high levels of relative humidity. This study uses X-ray photoelectron spectroscopy (XPS) to determine that there is essentially no threshold to water adsorption on the in situ cleaved MAPbBr3 (001) single crystal surface. Using scanning tunneling microscopy (STM), it shows that the initial surface restructuring upon exposure to water vapor occurs in isolated regions, which grow in area with increasing exposure, providing insight into the initial degradation mechanism of HOIPs. The electronic structure evolution of the surface was also monitored via ultraviolet photoemission spectroscopy (UPS), evidencing an increased bandgap state density following water vapor exposure, which is attributed to surface defect formation due to lattice swelling. This study will help to inform the surface engineering and designs of future perovskite-based optoelectronic devices.
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Affiliation(s)
- Robin Kerr
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- London Centre for Nanotechnology, University College London, London, WC1H 0AH, UK
| | - Thomas J Macdonald
- Department of Chemistry & Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK
- School of Engineering & Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Alex J Tanner
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- London Centre for Nanotechnology, University College London, London, WC1H 0AH, UK
| | - Jiangdong Yu
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- London Centre for Nanotechnology, University College London, London, WC1H 0AH, UK
| | - Julia A Davies
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Helen H Fielding
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Geoff Thornton
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- London Centre for Nanotechnology, University College London, London, WC1H 0AH, UK
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5
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Abate SY, Yang Z, Jha S, Emodogo J, Ma G, Ouyang Z, Muhammad S, Pradhan N, Gu X, Patton D, Li D, Cai J, Dai Q. Promoting Large-Area Slot-Die-Coated Perovskite Solar Cell Performance and Reproducibility by Acid-Based Sulfono-γ-AApeptide. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37201183 DOI: 10.1021/acsami.3c02571] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Homogeneous and pinhole-free large-area perovskite films are required to realize the commercialization of perovskite modules and panels. Various large-area perovskite coatings were developed; however, at their film coating and drying stages, many defects were formed on the perovskite surface. Consequently, not only the devices lost substantial performance but also their long-term stability deteriorated. Here, we fabricated a compact and uniform large-area MAPbI3-perovskite film by a slot-die coater at room temperature (T) and at high relative humidity (RH) up to 40%. The control slot-die-coated perovskite solar cell (PSC) produced 1.082 V open-circuit voltage (Voc), 24.09 mA cm-2 short current density (Jsc), 71.13% fill factor (FF), and a maximum power conversion efficiency (PCE) of 18.54%. We systematically employed a multi-functional artificial amino acid (F-LYS-S) to modify the perovskite defects. Such amino acids are more inclined to bind and adhere to the perovskite defects. The amino, carbonyl, and carboxy functional groups of F-LYS-S interacted with MAPbI3 through Lewis acid-base interaction and modified iodine vacancies significantly. Fourier transform infrared spectroscopy revealed that the C═O group of F-LYS-S interacted with the uncoordinated Pb2+ ions, and X-ray photoelectron spectroscopy revealed that the lone pair of -NH2 coordinated with the uncoordinated Pb2+ and consequently modified the I- vacancies remarkably. As a result, the F-LYS-S-modified device demonstrated more than three-fold charge recombination resistance, which is one of the primary requirements to fabricate high-performance PSCs. Therefore, the device fabricated employing F-LYS-S demonstrated remarkable PCE of 21.08% with superior photovoltaic parameters of 1.104 V Voc, 24.80 mA cm-2 Jsc, and 77.00%. FF. Concurrently, the long-term stability of the PSCs was improved by the F-LYS-S post-treatment, where the modified device retained ca. 89.6% of its initial efficiency after storing for 720 h in air (T ∼ 27 °C and RH ∼ 50-60%).
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Affiliation(s)
- Seid Yimer Abate
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Ziqi Yang
- Department of Chemistry, University of South Florida, 4202 E Fowler Avenue, Tampa, Florida 33620, United States
| | - Surabhi Jha
- School of Polymer Science and Engineering, Center for Optoelectronic Materials and Devices, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Jada Emodogo
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Guorong Ma
- School of Polymer Science and Engineering, Center for Optoelectronic Materials and Devices, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Zhongliang Ouyang
- Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Shafi Muhammad
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Nihar Pradhan
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Xiaodan Gu
- School of Polymer Science and Engineering, Center for Optoelectronic Materials and Devices, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Derek Patton
- School of Polymer Science and Engineering, Center for Optoelectronic Materials and Devices, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Dawen Li
- Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E Fowler Avenue, Tampa, Florida 33620, United States
| | - Qilin Dai
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
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6
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Li Y, Lohr PJ, Segapeli A, Baltram J, Werner D, Allred A, Muralidharan K, Printz AD. Influence of Halides on the Interactions of Ammonium Acids with Metal Halide Perovskites. ACS APPLIED MATERIALS & INTERFACES 2023; 15:24387-24398. [PMID: 37162743 DOI: 10.1021/acsami.3c01432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Additive engineering is a common strategy to improve the performance and stability of metal halide perovskite through the modulation of crystallization kinetics and passivation of surface defects. However, much of this work has lacked a systematic approach necessary to understand how the functionality and molecular structure of the additives influence perovskite performance and stability. This paper describes the inclusion of low concentrations of 5-aminovaleric acid (5-AVA) and its ammonium acid derivatives, 5-ammoniumvaleric acid iodide (5-AVAI) and 5-ammoniumvaleric acid chloride (5-AVACl), into the precursor inks for methylammonium lead triiodide (MAPbI3) perovskite and highlights the important role of halides in affecting the interactions of additives with perovskite and film properties. The film quality, as determined by X-ray diffraction (XRD) and photoluminescence (PL) spectrophotometry, is shown to improve with the inclusion of all additives, but an increase in annealing time from 5 to 30 min is necessary. We observe an increase in grain size and a decrease in film roughness with the incorporation of 5-AVAI and 5-AVACl with scanning electron microscopy (SEM) and atomic force microscopy (AFM). Critically, X-ray photoelectron spectroscopy (XPS) measurements and density functional theory (DFT) calculations show that 5-AVAI and 5-AVACl preferentially interact with MAPbI3 surfaces via the ammonium functional group, while 5-AVA will interact with either amino or carboxylic acid functional groups. Charge localization analysis shows the surprising result that HCl dissociates from 5-AVACl in vacuum, resulting in the decomposition of the ammonium acid to 5-AVA. We show that device repeatability is improved with the inclusion of all additives and that 5-AVACl increases the power conversion efficiency of devices from 17.61 ± 1.07 to 18.07 ± 0.42%. Finally, we show stability improvements for unencapsulated devices exposed to 50% relative humidity, with devices incorporating 5-AVAI and 5-AVACl exhibiting the greatest improvements.
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Affiliation(s)
- Yanan Li
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Patrick J Lohr
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Allison Segapeli
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Juliana Baltram
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Dorian Werner
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Alex Allred
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Krishna Muralidharan
- Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Adam D Printz
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, Arizona 85721, United States
- Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, United States
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7
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Macdonald TJ, Lanzetta L, Liang X, Ding D, Haque SA. Engineering Stable Lead-Free Tin Halide Perovskite Solar Cells: Lessons from Materials Chemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022:e2206684. [PMID: 36458662 DOI: 10.1002/adma.202206684] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/24/2022] [Indexed: 06/17/2023]
Abstract
Substituting toxic lead with tin (Sn) in perovskite solar cells (PSCs) is the most promising route toward the development of high-efficiency lead-free devices. Despite the encouraging efficiencies of Sn-PSCs, they are still yet to surpass 15% and suffer detrimental oxidation of Sn(II) to Sn(IV). Since their first application in 2014, investigations into the properties of Sn-PSCs have contributed to a growing understanding of the mechanisms, both detrimental and complementary to their stability. This review summarizes the evolution of Sn-PSCs, including early developments to the latest state-of-the-art approaches benefitting the stability of devices. The degradation pathways associated with Sn-PSCs are first outlined, followed by describing how composition engineering (A, B site modifications), additive engineering (oxidation prevention), and interface engineering (passivation strategies) can be employed as different avenues to improve the stability of devices. The knowledge about these properties is also not limited to PSCs and also applicable to other types of devices now employing Sn-based perovskite absorber layers. A detailed analysis of the properties and materials chemistry reveals a clear set of design rules for the development of stable Sn-PSCs. Applying the design strategies highlighted in this review will be essential to further improve both the efficiency and stability of Sn-PSCs.
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Affiliation(s)
- Thomas J Macdonald
- Department of Chemistry, Imperial College London, Wood Lane, W12 0BZ, UK
- Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Luis Lanzetta
- Department of Chemistry, Imperial College London, Wood Lane, W12 0BZ, UK
- Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Xinxing Liang
- Department of Chemistry, Imperial College London, Wood Lane, W12 0BZ, UK
- Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Dong Ding
- Department of Chemistry, Imperial College London, Wood Lane, W12 0BZ, UK
- Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Saif A Haque
- Department of Chemistry, Imperial College London, Wood Lane, W12 0BZ, UK
- Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
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8
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Sun X, Jang H, Sun Y, Guo Z, Pang Z, Wang F, Yang J, Yang L. Multi-functional L-histidine self-assembled monolayers on SnO2 electron transport layer to boost photovoltaic performance of Perovskite solar cells. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Macdonald TJ, Clancy AJ, Xu W, Jiang Z, Lin CT, Mohan L, Du T, Tune DD, Lanzetta L, Min G, Webb T, Ashoka A, Pandya R, Tileli V, McLachlan MA, Durrant JR, Haque SA, Howard CA. Phosphorene Nanoribbon-Augmented Optoelectronics for Enhanced Hole Extraction. J Am Chem Soc 2021; 143:21549-21559. [PMID: 34919382 DOI: 10.1021/jacs.1c08905] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Phosphorene nanoribbons (PNRs) have been widely predicted to exhibit a range of superlative functional properties; however, because they have only recently been isolated, these properties are yet to be shown to translate to improved performance in any application. PNRs show particular promise for optoelectronics, given their predicted high exciton binding energies, tunable bandgaps, and ultrahigh hole mobilities. Here, we verify the theorized enhanced hole mobility in both solar cells and space-charge-limited-current devices, demonstrating the potential for PNRs improving hole extraction in universal optoelectronic applications. Specifically, PNRs are demonstrated to act as an effective charge-selective interlayer by enhancing hole extraction from polycrystalline methylammonium lead iodide (MAPbI3) perovskite to the poly(triarylamine) semiconductor. Introducing PNRs at the hole-transport/MAPbI3 interface achieves fill factors above 0.83 and efficiencies exceeding 21% for planar p-i-n (inverted) perovskite solar cells (PSCs). Such efficiencies are typically only reported for single-crystalline MAPbI3-based inverted PSCs. Methylammonium-free PSCs also benefit from a PNR interlayer, verifying applicability to architectures incorporating mixed perovskite absorber layers. Device photoluminescence and transient absorption spectroscopy are used to demonstrate that the presence of the PNRs drives more effective carrier extraction. Isolation of the PNRs in space-charge-limited-current hole-only devices improves both hole mobility and conductivity, demonstrating applicability beyond PSCs. This work provides primary experimental evidence that the predicted superlative functional properties of PNRs indeed translate to improved optoelectronic performance.
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Affiliation(s)
- Thomas J Macdonald
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom.,Department of Chemistry, University College London, 20 Gordon St., London WC1H 0AJ, United Kingdom.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Adam J Clancy
- Department of Chemistry, University College London, 20 Gordon St., London WC1H 0AJ, United Kingdom.,Department of Physics & Astronomy, University College London, Gower St., London WC1E 6BT, United Kingdom
| | - Weidong Xu
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Zhongyao Jiang
- Department of Materials and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Chieh-Ting Lin
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Lokeshwari Mohan
- Department of Materials and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Tian Du
- Department of Materials and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Daniel D Tune
- International Solar Energy Research Center Konstanz, Rudolf-Diesel-Straße 15, D-78467 Konstanz, Germany
| | - Luis Lanzetta
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Ganghong Min
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Thomas Webb
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - Arjun Ashoka
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE Cambridge, U.K
| | - Raj Pandya
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE Cambridge, U.K
| | - Vasiliki Tileli
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Martyn A McLachlan
- Department of Materials and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - James R Durrant
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom.,SPECIFIC IKC, College of Engineering, Swansea University, Swansea SA2 7AX, United Kingdom
| | - Saif A Haque
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United Kingdom
| | - Christopher A Howard
- Department of Physics & Astronomy, University College London, Gower St., London WC1E 6BT, United Kingdom
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