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Park H, Jeong S, Kim E, Shin S, Shin H. Hole-Transporting Vanadium-Containing Oxide (V 2O 5-x) Interlayers Enhance Stability of α-FAPbI 3-Based Perovskite Solar Cells (∼23%). ACS APPLIED MATERIALS & INTERFACES 2022; 14:42007-42017. [PMID: 36073165 DOI: 10.1021/acsami.2c10901] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite solar cells (PSCs) have attracted tremendous interest due to their outstanding intrinsic photovoltaic properties, such as absorption coefficients, exciton binding energies, and long carrier lifetimes. Although the power conversion efficiency (PCE) of PSCs is close to the Si solar cells' PCE, device stability remains a challenge. In particular, the device stability is more critical in n-i-p normal structured PSCs, which show a higher efficiency than p-i-n inverted ones, simply because of the much lower stability of 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (Spi). To prevent the devices from degrading performances arising both from perovskite's degradation and Spi instability, we prepare atomic layer deposition (ALD)-grown transition metal oxides for hole transport with efficient n-i-p PSCs. We demonstrate low-temperature (Tdep = 45 °C)-grown amorphous ALD-V2O5-x with oxygen-deficient traps on top of Spi as an interlayer, which prevents the devices' degradation in performance. By blocking moisture and oxygen, ALD-V2O5-x was able to greatly improve the devices' stability by preserving the photovoltaic α-FAPbI3 phase while suppressing both Li ion diffusion from the additive and Au ions from the electrode. As a result, we successfully fabricate PSCs with passivation/hole-transporting bifunctional Spi/ALD-V2O5-x interlayers without sacrificing photovoltaic performances, and the device stability is significantly improved.
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Affiliation(s)
- Hyoungmin Park
- Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Seonghwa Jeong
- Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Eunsoo Kim
- Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Sooeun Shin
- Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hyunjung Shin
- Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 440-746, Republic of Korea
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Farokhi A, Shahroosvand H, Monache GD, Pilkington M, Nazeeruddin MK. The evolution of triphenylamine hole transport materials for efficient perovskite solar cells. Chem Soc Rev 2022; 51:5974-6064. [PMID: 35770784 DOI: 10.1039/d1cs01157j] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent years, the dramatic increase in power conversion efficiency (PCE) coupled with a decrease in the total cost of third-generation solar cells has led to a significant increase in the collaborative research efforts of academic and industrial researchers. Such interdisciplinary studies have afforded novel materials, which in many cases are now ready to be brought to the marketplace. Within this framework, the field of perovskite solar cells (PSCs) is currently an important area of research due to their extraordinary light-harvesting properties. In particular, PSCs prepared via facile synthetic procedures, containing hole transport materials (HTMs) with versatile triphenylamine (TPA) structural cores, amenable to functionalization, have become a focus of intense global research activity. To optimize the efficiency of the solar cells to achieve efficiencies closer to rival silicon-based technology, TPA building blocks must exhibit favourable electrochemical, photophysical, and photochemical properties that can be chemically tuned in a rational manner. Although PSCs based on TPA building blocks exhibit attractive properties such as high-power efficiencies, a reduction in their synthetic costs coupled with higher stabilities and environmental considerations still need to be addressed. Considering the above, a detailed summary of the most promising compounds and current methodologies employed to overcome the remaining challenges in this field is provided. The objective of this review is to provide guidance to readers on exploring new avenues for the discovery of efficient TPA derivatives, to aid in the future development and advancement of TPA-based PSCs for commercial applications.
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Affiliation(s)
- Afsaneh Farokhi
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan, Zanjan, Iran.
| | - Hashem Shahroosvand
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan, Zanjan, Iran.
| | - Gabriele Delle Monache
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario, L2S3A1, Canada.
| | - Melanie Pilkington
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario, L2S3A1, Canada.
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1951 Sion, Switzerland.,Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong.
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Li J, Duan C, Wen Q, Yuan L, Zou S, Chen C, Xie W, Lin D, Chan CCS, Wong KS, Yan K. Reciprocally Photovoltaic Light-Emitting Diode Based on Dispersive Perovskite Nanocrystal. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107145. [PMID: 35373469 DOI: 10.1002/smll.202107145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Integrating highly efficient photovoltaic (PV) function into light-emitting diodes (LEDs) for multifunctional display is of great significance for compact low-power electronics, but it remains challenging. Herein, it is demonstrated that solution engineered perovskite nanocrystals (PNCs, ≈100 nm) enable efficient electroluminescence (EL) and PV performance within a single device through tailoring the dispersity and interface. It delivers the maximum brightness of 490 W sr-1 m-2 at 2.7 V and 23.2% EL external quantum efficiency, a record value for near-infrared perovskite LED, as well as 15.23% PV efficiency, among the highest value for nanocrystal perovskite solar cells. The PV-EL performance is well in line with the reciprocity relation. These all-solution-processed PV-LED devices open up viable routes to a variety of advanced applications, from touchless interactive screens to energy harvesting displays and data communication.
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Affiliation(s)
- Jiong Li
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Chenghao Duan
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Qiaoyun Wen
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Ligang Yuan
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Shibing Zou
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Chang Chen
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
| | - Weiguang Xie
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Dongxu Lin
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Christopher C S Chan
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, P. R. China
| | - Kam Sing Wong
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, P. R. China
| | - Keyou Yan
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, P. R. China
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Chin YC, Daboczi M, Henderson C, Luke J, Kim JS. Suppressing PEDOT:PSS Doping-Induced Interfacial Recombination Loss in Perovskite Solar Cells. ACS ENERGY LETTERS 2022; 7:560-568. [PMID: 35434365 PMCID: PMC9007524 DOI: 10.1021/acsenergylett.1c02577] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/05/2022] [Indexed: 06/12/2023]
Abstract
PSS is widely used as a hole transport layer (HTL) in perovskite solar cells (PSCs) due to its facile processability, industrial scalability, and commercialization potential. However, PSCs utilizing PEDOT:PSS suffer from strong recombination losses compared to other organic HTLs. This results in lower open-circuit voltage (V OC) and power conversion efficiency (PCE). Most studies focus on doping PEDOT:PSS to improve charge extraction, but it has been suggested that a high doping level can cause strong recombination losses. Herein, we systematically dedope PEDOT:PSS with aqueous NaOH, raising its Fermi level by up to 500 meV, and optimize its layer thickness in p-i-n devices. A significant reduction of recombination losses at the dedoped PEDOT:PSS/perovskite interface is evidenced by a longer photoluminescence lifetime and higher magnitude of surface photovoltage, leading to an increased device V OC, fill factor, and PCE. These results provide insights into the relationship between doping level of HTLs and interfacial charge carrier recombination losses.
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Synthesis and Thermal, Photophysical, Electrochemical Properties of 3,3-di[3-Arylcarbazol-9-ylmethyl]oxetane Derivatives. MATERIALS 2021; 14:ma14195569. [PMID: 34639966 PMCID: PMC8509391 DOI: 10.3390/ma14195569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/16/2021] [Accepted: 09/22/2021] [Indexed: 12/16/2022]
Abstract
Novel oxetane-functionalized derivatives were synthesized to find the impact of carbazole substituents, such as 1-naphtyl, 9-ethylcarbazole and 4-(diphenylamino)phenyl, on their thermal, photophysical and electrochemical properties. Additionally, to obtain the optimized ground-state geometry and distribution of the frontier molecular orbital energy levels, density functional theory (DFT) calculations were used. Thermal investigations showed that the obtained compounds are highly thermally stable up to 360 °C, as molecular glasses with glass transition temperatures in the range of 142-165 °C. UV-Vis and photoluminescence studies were performed in solvents of differing in polarity, in the solid state as a thin film on glass substrate, and in powders, and were supported by DFT calculations. They emitted radiation both in solution and in film with photoluminescence quantum yield from 4% to 87%. Cyclic voltammetry measurements revealed that the materials undergo an oxidation process. Next, the synthesized molecules were tested as hole transporting materials (HTM) in perovskite solar cells with the structure FTO/b-TiO2/m-TiO2/perovskite/HTM/Au, and photovoltaic parameters were compared with the reference device without the oxetane derivatives.
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Ouedraogo NAN, Yan H, Han CB, Zhang Y. Influence of Fluorinated Components on Perovskite Solar Cells Performance and Stability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004081. [PMID: 33522104 DOI: 10.1002/smll.202004081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/12/2020] [Indexed: 06/12/2023]
Abstract
Several valuable scientific investigations have been conducted these last few years in materials design and device engineering for perovskite solar cells (PSCs) to make them competitive compared to traditional silicon-based photovoltaic technologies. Consequently, high power conversion efficiency beyond 25% is nowadays reported. However, their long-term stability remains a significant challenge to overcome. Herein, the influence of fluorinated compounds on each layer of PSCs devices and their impact on the resulted device performances and stability is spotlighted. The fluorinated compounds exhibit attractive properties due to their very high electronegativity attributed to the fluorine atom, and their strong hydrophobicity. Thus, the introduction of these compounds is found to be a successful strategy to positively suppress the surface trap states, enhancing charge collection and reducing interfacial charge recombination. Besides, a better film quality and better energy level alignment is obtained, resulting in the improvement of device photovoltaic parameters such as the open-circuit voltage (Voc ), short-circuit current (Jsc ), and fill factor (FF), and then, the device's overall power conversion efficiency (PCE). Their long-term stability is also found to further be improved.
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Affiliation(s)
- Nabonswende Aida Nadege Ouedraogo
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Hui Yan
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Chang Bao Han
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Yongzhe Zhang
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
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Metal organic framework–derived core-shell CuO@NiO nanosphares as hole transport material in perovskite solar cell. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04643-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Suragtkhuu S, Tserendavag O, Vandandoo U, Bati ASR, Bat-Erdene M, Shapter JG, Batmunkh M, Davaasambuu S. Efficiency and stability enhancement of perovskite solar cells using reduced graphene oxide derived from earth-abundant natural graphite. RSC Adv 2020; 10:9133-9139. [PMID: 35496556 PMCID: PMC9050030 DOI: 10.1039/d0ra01423k] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 02/26/2020] [Indexed: 11/21/2022] Open
Abstract
Graphene – two-dimensional (2D) sheets of carbon atoms linked in a honeycomb pattern – has unique properties that exhibit great promise for various applications including solar cells. Herein we prepared two-dimensional (2D) reduced graphene oxide (rGO) nanosheets from naturally abundant graphite flakes (obtained from Tuv aimag in Mongolia) using solution processed chemical oxidation and thermal reduction methods. As a proof of concept, we used our rGO as a hole transporting material (HTM) in perovskite solar cells (PSCs). Promisingly, the use of rGO in the hole transporting layer (HTL) not only enhanced the photovoltaic efficiency of PSCs, but also improved the device stability. In particular, the best performing PSC employing rGO nanosheets exhibited a power conversion efficiency (PCE) of up to 18.13%, while the control device without rGO delivered a maximum efficiency of 17.26%. The present work demonstrates the possibilities for solving PSC issues (stability) using nanomaterials derived from naturally abundant graphite sources. Solution processed reduced graphene oxide nanosheets have been prepared from naturally abundant graphite flakes and used to enhance the efficiency and stability of perovskite solar cells.![]()
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Affiliation(s)
- Selengesuren Suragtkhuu
- Department of Chemistry
- School of Arts and Sciences
- National University of Mongolia
- Ulaanbaatar 14200
- Mongolia
| | - Odonchimeg Tserendavag
- Department of Chemistry
- School of Arts and Sciences
- National University of Mongolia
- Ulaanbaatar 14200
- Mongolia
| | - Ulziibayar Vandandoo
- School of Applied Sciences
- Mongolian University of Science and Technology
- Ulaanbaatar 14191
- Mongolia
- Institute of Mathematics and Digital Technology
| | - Abdulaziz S. R. Bati
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Munkhjargal Bat-Erdene
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Joseph G. Shapter
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Munkhbayar Batmunkh
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
- Centre for Clean Environment and Energy
| | - Sarangerel Davaasambuu
- Department of Chemistry
- School of Arts and Sciences
- National University of Mongolia
- Ulaanbaatar 14200
- Mongolia
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