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Ou D, Liu Y, Chen Q, Zhong Q. Preparation of low-cost perovskite solar cells with high-quality perovskite films in an ambient atmosphere. NANOTECHNOLOGY 2021; 33:015202. [PMID: 34560675 DOI: 10.1088/1361-6528/ac29d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
High-quality perovskite films are extremely crucial to obtain perovskite solar cells with excellent photovoltaic performance, especially for carbon-based hole transport materials (HTM)-free perovskite solar cells. In this work, a facile and low-cost double two-step method (DT-method) is developed to prepare uniform and pinhole-free CH3NH3PbI3perovskite films in an ambient atmosphere by utilizing the dissolution-recrystallization of PbI2in DMF. That is to spin-coat PbI2and CH3NH3I solution sequentially onto pristine perovskite films prepared by the conventional two-step method. The solar cells fabricated by the DT-method show a dramatic performance improvement, includingVoc,Jsc, and fill factor reach 0.85 V, 15.56 mA cm-2, and 0.58 respectively, which increase power conversion efficiency from 3.93% to 7.58% compared with the conventional two-step method. The improvement in performance and stability of solar cells is mainly due to the higher coverage of perovskite films onto the underlying mesoporous TiO2layer and a negligible amount of PbI2residue, which can effectively reduce charge recombination and promote the rapid transfer of charge carriers. In summary, this work presents a process for preparing carbon-based HTM-free perovskite solar cells (PSCs) in a high-humidity atmospheric environment (60%-85%). This simple device structure and preparation condition can greatly reduce the production threshold and cost of PSCs.
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Affiliation(s)
- Dingwei Ou
- Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Yifeng Liu
- Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Qianqiao Chen
- Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Qin Zhong
- Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
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2
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Applications of carbon nanomaterials in perovskite solar cells for solar energy conversion. NANO MATERIALS SCIENCE 2021. [DOI: 10.1016/j.nanoms.2021.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Mazumdar S, Zhao Y, Zhang X. Stability of Perovskite Solar Cells: Degradation Mechanisms and Remedies. FRONTIERS IN ELECTRONICS 2021. [DOI: 10.3389/felec.2021.712785] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Inorganic–organic metal halide perovskite light harvester-based perovskite solar cells (PSCs) have come to the limelight of solar cell research due to their rapid growth in efficiency. At present, stability and reliability are challenging aspects concerning the Si-based or thin film-based commercial devices. Commercialization of perovskite solar cells remains elusive due to the lack of stability of these devices under real operational conditions, especially for longer duration use. A large number of researchers have been engaged in an ardent effort to improve the stability of perovskite solar cells. Understanding the degradation mechanisms has been the primary importance before exploring the remedies for degradation. In this review, a methodical understanding of various degradation mechanisms of perovskites and perovskite solar cells is presented followed by a discussion on different steps taken to overcome the stability issues. Recent insights on degradation mechanisms are discussed. Various approaches of stability enhancement are reviewed with an emphasis on reports that complied with the operational standard for practical application in a commercial solar module. The operational stability standard enacted by the International Electrotechnical Commission is especially discussed with reports that met the requirements or showed excellent results, which is the most important criterion to evaluate a device’s actual prospect to be utilized for practical applications in commercial solar modules. An overall understanding of degradation pathways in perovskites and perovskite solar cells and steps taken to overcome those with references including state-of-the-art devices with promising operational stability can be gained from this review.
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4
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Chen M, Xue T, Tian Q, Xu Z, Liu SF. Tapered Coaxial Arrays for Photon- and Plasmon-Enhanced Light Harvesting in Perovskite Solar Cells: A Theoretical Investigation Using the Finite Element Method. Chempluschem 2021; 86:858-864. [PMID: 34110717 DOI: 10.1002/cplu.202100157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/12/2021] [Indexed: 12/28/2022]
Abstract
Although there have been reports of separate studies of photon-enhanced and plasmon-enhanced light harvesting to improve perovskite solar cell (PSC) efficiency, there are none that have achieved simultaneous enhancement in both photonic and plasmonic effects in PSCs. In this work, we designed a layer of tapered coaxial humps (TCHs) to harvest both in PSCs. The light absorption behavior of the textured perovskite layer in PSCs was systematically investigated through the finite element method (FEM). The calculation results show that the TCH-textured perovskite layer absorbs 67.6 % of visible light under AM 1.5G solar irradiation, a 21.8 % increase relative to the planar reference cell without TCHs. Using this design, a perovskite thickness of only 106 nm is needed to realize the full light absorption that normally requires 300-nm-thick perovskite without TCHs. To reveal the mechanism of light absorption enhancement, the specific field distributions were studied. We demonstrated that different photonic modes and plasmonic modes collectively result in remarkable light absorption enhancement in the 500-800 nm wavelength range. The textured PSCs reported herein provide an effective method to decrease Pb-based perovskite consumption and realize angle-insensitive and ultrathin PSCs.
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Affiliation(s)
- Ming Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
- College of Physics and Electronics Engineering, School of Electric Power, Civil Engineering and Architecture, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, 030006, P. R. China
| | - Tailin Xue
- College of Physics and Electronics Engineering, School of Electric Power, Civil Engineering and Architecture, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, 030006, P. R. China
| | - Qingwen Tian
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Zhuo Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
- University of the Chinese Academy of Sciences, Beijing, 100039, P. R. China
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Poddar S, Zhang Y, Zhu Y, Zhang Q, Fan Z. Optically tunable ultra-fast resistive switching in lead-free methyl-ammonium bismuth iodide perovskite films. NANOSCALE 2021; 13:6184-6191. [PMID: 33885604 DOI: 10.1039/d0nr09234g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Resistive RAMs (Re-RAMs) have come to the fore as a rising star among the next generation non-volatile memories with fast operational speed, excellent endurance and prolonged data retention capabilities. Re-RAMs are being profusely used as storage and processing modules in neuromorphic hardware and high frequency switches in radio-frequency (RF) circuits. Owing to its intrinsic hysteresis and abundance of charge migration pathways, lead halide perovskites have emerged as a promising switching medium in Re-RAMs besides their ubiquitous usage in optoelectronic devices. Here, we adopted a lead-free eco-friendly methyl-ammonium bismuth iodide (MA3Bi2I9) perovskite (prepared by solvent-free engineering) as the switching medium sandwiched between copper (Cu) and indium doped tin oxide (ITO) electrodes. The devices exhibited a 104 high ON/OFF ratio that provided a large window for the multi-bit data storage in a single cell with good accuracy. Robust endurance of 1730 cycles and good data retention ability of >3 × 105 s were also observed. Careful switching speed measurements showed the devices can operate with an ultra-fast speed of 10 ns for writing and erasing respectively. The devices responded to light illumination and the prolonged retention of the opto-electrically tuned resistance states paved the way for image memorization.
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Affiliation(s)
- Swapnadeep Poddar
- Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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Chen C, Zheng S, Song H. Photon management to reduce energy loss in perovskite solar cells. Chem Soc Rev 2021; 50:7250-7329. [PMID: 33977928 DOI: 10.1039/d0cs01488e] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite the rapid development of perovskite solar cells (PSCs) over the past few years, the conversion of solar energy into electricity is not efficient enough or cost-competitive yet. The principal energy loss in the conversion of solar energy to electricity fundamentally originates from the non-absorption of low-energy photons ascribed to Shockley-Queisser limits and thermalization losses of high-energy photons. Enhancing the light-harvesting efficiency of the perovskite photoactive layer by developing efficient photo management strategies with functional materials and arrays remains a long-standing challenge. Here, we briefly review the historical research trials and future research trends to overcome the fundamental loss mechanisms in PSCs, including upconversion, downconversion, scattering, tandem/graded structures, texturing, anti-reflection, and luminescent solar concentrators. We will deeply emphasize the availability and analyze the importance of a fine device structure, fluorescence efficiency, material proportion, and integration position for performance improvement. The unique energy level structure arising from the 4fn inner shell configuration of the trivalent rare-earth ions gives multifarious options for efficient light-harvesting by upconversion and downconversion. Tandem or graded PSCs by combining a series of subcells with varying bandgaps seek to rectify the spectral mismatch. Plasmonic nanostructures function as a secondary light source to augment the light-trapping within the perovskite layer and carrier transporting layer, enabling enhanced carrier generation. Texturing the interior using controllable micro/nanoarrays can realize light-matter interactions. Anti-reflective coatings on the top glass cover of the PSCs bring about better transmission and glare reduction. Photon concentration through perovskite-based luminescent solar concentrators offers a path to increase efficiency at reduced cost and plays a role in building-integrated photovoltaics. Distinct from other published reviews, we here systematically and hierarchically present all of the photon management strategies in PSCs by presenting the theoretical possibilities and summarizing the experimental results, expecting to inspire future research in the field of photovoltaics, phototransistors, photoelectrochemical sensors, photocatalysis, and especially light-emitting diodes. We further assess the overall possibilities of the strategies based on ultimate efficiency prospects, material requirements, and developmental outlook.
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Affiliation(s)
- Cong Chen
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin 300130, People's Republic of China. and State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
| | - Shijian Zheng
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin 300130, People's Republic of China.
| | - Hongwei Song
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
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7
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Abd Malek NA, Alias N, Md Saad SK, Abdullah NA, Zhang X, Li X, Shi Z, Rosli MM, Tengku Abd Aziz TH, Umar AA, Zhan Y. Ultra-thin MoS2 nanosheet for electron transport layer of perovskite solar cells. OPTICAL MATERIALS 2020; 104:109933. [DOI: 10.1016/j.optmat.2020.109933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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8
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Hossain IM, Donie YJ, Schmager R, Abdelkhalik MS, Rienäcker M, Wietler TF, Peibst R, Karabanov A, Schwenzer JA, Moghadamzadeh S, Lemmer U, Richards BS, Gomard G, Paetzold UW. Nanostructured front electrodes for perovskite/c-Si tandem photovoltaics. OPTICS EXPRESS 2020; 28:8878-8897. [PMID: 32225505 DOI: 10.1364/oe.382253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
The rise in the power conversion efficiency (PCE) of perovskite solar cells has triggered enormous interest in perovskite-based tandem photovoltaics. One key challenge is to achieve high transmission of low energy photons into the bottom cell. Here, nanostructured front electrodes for 4-terminal perovskite/crystalline-silicon (perovskite/c-Si) tandem solar cells are developed by conformal deposition of indium tin oxide (ITO) on self-assembled polystyrene nanopillars. The nanostructured ITO is optimized for reduced reflection and increased transmission with a tradeoff in increased sheet resistance. In the optimum case, the nanostructured ITO electrodes enhance the transmittance by ∼7% (relative) compared to planar references. Perovskite/c-Si tandem devices with nanostructured ITO exhibit enhanced short-circuit current density (2.9 mA/cm2 absolute) and PCE (1.7% absolute) in the bottom c-Si solar cell compared to the reference. The improved light in-coupling is more pronounced for elevated angle of incidence. Energy yield enhancement up to ∼10% (relative) is achieved for perovskite/c-Si tandem architecture with the nanostructured ITO electrodes. It is also shown that these nanostructured ITO electrodes are also compatible with various other perovskite-based tandem architectures and bear the potential to improve the PCE up to 27.0%.
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Kim J, Lee G, Lee K, Yu H, Lee JW, Yoon CM, Kim SG, Kim SK, Jang J. Fluorine plasma treatment on carbon-based perovskite solar cells for rapid moisture protection layer formation and performance enhancement. Chem Commun (Camb) 2019; 56:535-538. [PMID: 31829332 DOI: 10.1039/c9cc07785e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorine plasma-treated carbon electrode is used in HTM-free perovskite solar cells for high efficiency and moisture resistance. The fluorine-treated device with a champion power conversion efficiency (PCE) of 14.86% is achieved with a highly enhanced FF (FF = 0.69), showing superior long-term stability and excellent moisture penetration suppression.
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Affiliation(s)
- Jungwon Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Gyeongseop Lee
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Kisu Lee
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Haejun Yu
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Jong Woo Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Chang-Min Yoon
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Sung Gun Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Seong Keun Kim
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jyongsik Jang
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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10
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Qiu J, Yang S. Material and Interface Engineering for High-Performance Perovskite Solar Cells: A Personal Journey and Perspective. CHEM REC 2019; 20:209-229. [PMID: 31368664 DOI: 10.1002/tcr.201900028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/15/2019] [Indexed: 11/07/2022]
Abstract
Hybrid organic-inorganic perovskite solar cells (PSCs) have become a shining star in the photovoltaic field due to their spectacular increase in power conversion efficiency (PCE) from 3.8 % to over 23 % in just few years, opening up the potential in addressing the important future energy and environment issues. The excellent photovoltaic performance can be attributed to the unique properties of the organometal halide perovskite materials, including high absorption coefficient, tunable bandgap, high defect tolerance, and excellent charge transport characteristics. The authors entered this field when pursuing research on dye-sensitized solar cells (DSCs) by leveraging nanorods arrays for vectorial transport of the extracted electrons. Soon after, we and others realized that while the organometal halide perovskite materials have excellent intrinsic properties for solar cells, interface engineering is at least equally important in the development of high-performance PSCs, which includes surface defect passivation, band alignment, and heterojunction formation. Herein, we will address this topic by presenting the historical development and recent progress on the interface engineering of PSCs primarily of our own group. This review is mainly focused on the material and interface design of the conventional n-i-p, inverted p-i-n and carbon electrode-based structure devices from our own experience and perspective. Finally, the challenges and prospects of this area for future development will also be discussed.
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Affiliation(s)
- Jianhang Qiu
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), Shenyang, 110016, China
| | - Shihe Yang
- Guangdong Key Lab of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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11
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Wang Y, Guo H, Luo X, Liu X, Hu Z, Han L, Zhang Z. Nonsiliceous Mesoporous Materials: Design and Applications in Energy Conversion and Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805277. [PMID: 30869834 DOI: 10.1002/smll.201805277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/10/2019] [Indexed: 06/09/2023]
Abstract
In this work, the progress in the design of nonsiliceous mesoporous materials (nonSiMPMs) over the last five years from the perspectives of the chemical composition, morphology, loading, and surface modification is summarized. Carbon, metal, and metal oxide are in focus, which are the most promising compositions. Then, representative applications of nonSiMPMs are demonstrated in energy conversion and storage, including recent technical advances in dye-sensitized solar cells, perovskite solar cells, photocatalysts, electrocatalysts, fuel cells, storage batteries, supercapacitors, and hydrogen storage systems. Finally, the requirements and challenges of the design and application of nonSiMPMs are outlined.
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Affiliation(s)
- Yongfei Wang
- School of High Temperature Materials and Magnesite Resources Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
- Key Laboratory for Functional Material, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
| | - Hong Guo
- Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Xudong Luo
- School of High Temperature Materials and Magnesite Resources Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
| | - Xin Liu
- School of High Temperature Materials and Magnesite Resources Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
| | - Zhizhi Hu
- Key Laboratory for Functional Material, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
| | - Lu Han
- School of High Temperature Materials and Magnesite Resources Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
| | - Zhiqiang Zhang
- Key Laboratory for Functional Material, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan, 114044, P. R. China
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12
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Wan L, Zhang W, Wu Y, Li X, Song C, He Y, Zhang W, Fang J. Efficient light harvesting with a nanostructured organic electron-transporting layer in perovskite solar cells. NANOSCALE 2019; 11:9281-9286. [PMID: 31049532 DOI: 10.1039/c9nr03030a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanostructures have proved to be advantageous in light harvesting, improving the power conversion efficiency (PCE) of photovoltaic devices. However, the reported light-harvesting nanostructures all require extra processing beyond that for device fabrication, with multiple steps for nano-patterned structures or plasmonic nano-particles. Here we synthesized a conjugated polymer PFPDI which could simply form a nanostructured film on perovskite by spin coating. PFPDI possesses a perylene diimide-based backbone and phosphite ester pendants, which makes it a robust electron-transporting material (ETM) in perovskite solar cells. Furthermore, the perovskite solar cells with PFPDI as the electron-transporting layer (ETL) exhibited a higher light-harvesting efficiency compared to the standard phenyl-C61-butyric acid methyl ester (PCBM) devices. The JSC of the PFPDI device was enhanced from 19.71 mA cm-2 to 23.43 mA cm-2. SEM images and reflectance spectra confirmed that the PFPDI formed ditch-like nanostructures on perovskite film and induced a better light-harvesting efficiency. Further research indicated that the interaction of P[double bond, length as m-dash]O with Pb was essential to the formation of the nanostructures of PFPDI on perovskite. Therefore, our work not only offers an efficient organic ETM, but also opens up new horizons for simply constructing nanostructures with light-harvesting ability in photovoltaic devices.
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Affiliation(s)
- Li Wan
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
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13
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Kam M, Zhang Q, Zhang D, Fan Z. Room-Temperature Sputtered SnO 2 as Robust Electron Transport Layer for Air-Stable and Efficient Perovskite Solar Cells on Rigid and Flexible Substrates. Sci Rep 2019; 9:6963. [PMID: 31061387 PMCID: PMC6502843 DOI: 10.1038/s41598-019-42962-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 03/12/2019] [Indexed: 11/25/2022] Open
Abstract
Extraordinary photovoltaic performance and intriguing optoelectronic properties of perovskite solar cells (PSCs) have aroused enormous interest from both academic research and photovoltaic (PV) industry. In order to bring PSC technology from laboratory to market, material stability, device flexibility, and scalability are important issues to address for vast production. Nevertheless, PSCs are still primarily prepared by solution methods which limit film scalability, while high-temperature processing of metal oxide electron transport layer (ETL) makes PSCs costly and incompatible with flexible substrates. Here, we demonstrate rarely-reported room-temperature radio frequency (RF) sputtered SnO2 as a promising ETL with suitable band structure, high transmittance, and excellent stability to replace its solution-processed counterpart. Power conversion efficiencies (PCEs) of 12.82% and 5.88% have been achieved on rigid glass substrate and flexible PEN substrate respectively. The former device retained 93% of its initial PCE after 192-hour exposure in dry air while the latter device maintained over 90% of its initial PCE after 100 consecutive bending cycles. The result is a solid stepping stone toward future PSC all-vapor-deposition fabrication which is being widely used in the PV industry now.
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Affiliation(s)
- Matthew Kam
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China.,Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Qianpeng Zhang
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China.,Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Daquan Zhang
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China.,Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Zhiyong Fan
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China. .,Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
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Efficient metal halide perovskite light-emitting diodes with significantly improved light extraction on nanophotonic substrates. Nat Commun 2019; 10:727. [PMID: 30760711 PMCID: PMC6374404 DOI: 10.1038/s41467-019-08561-y] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/08/2019] [Indexed: 11/11/2022] Open
Abstract
Metal halide perovskite has emerged as a promising material for light-emitting diodes. In the past, the performance of devices has been improved mainly by optimizing the active and charge injection layers. However, the large refractive index difference among different materials limits the overall light extraction. Herein, we fabricate efficient methylammonium lead bromide light-emitting diodes on nanophotonic substrates with an optimal device external quantum efficiency of 17.5% which is around twice of the record for the planar device based on this material system. Furthermore, optical modelling shows that a high light extraction efficiency of 73.6% can be achieved as a result of a two-step light extraction process involving nanodome light couplers and nanowire optical antennas on the nanophotonic substrate. These results suggest that utilization of nanophotonic structures can be an effective approach to achieve high performance perovskite light-emitting diodes. The rapid development of halide perovskite light-emitting diodes mainly relies on the optimization of the active layer and charge injection layers. Here Zhang et al. incorporate three-dimensional nanophotonic substrates to enhance light out-coupling and achieve high external quantum efficiency of 17.5%.
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15
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Rong P, Ren S, Yu Q. Fabrications and Applications of ZnO Nanomaterials in Flexible Functional Devices-A Review. Crit Rev Anal Chem 2018; 49:336-349. [DOI: 10.1080/10408347.2018.1531691] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ping Rong
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
| | - Shuai Ren
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
| | - Qi Yu
- School of Materials Science and Engineering, Institute of Graphene at Shaanxi Key Laboratory of Catalysis, Shaanxi University of Technology, Hanzhong, China
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Chen C, Wu S, Wang J, Chen S, Peng T, Li R. Improved photovoltaic performance of perovskite solar cells based on three-dimensional rutile TiO 2 nanodendrite array film. NANOSCALE 2018; 10:20836-20843. [PMID: 30403213 DOI: 10.1039/c8nr06899b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In order to explore high performance and stable perovskite solar cells (PSCs), the design and optimization of electron transport layer (ETL) have been paid more and more attention. Vertically oriented, one-dimensional (1D) TiO2 nanostructured array films are considered superior ETLs because of their rapid electron transporting property and open pore architectures. In this study, a three-dimensional (3D) rutile TiO2 nanodendrite array (RTNDA) film containing 1D trunks and branches was fabricated through second hydrothermal treatment of 1D rutile TiO2 nanorod array (RTNRA) film hydrothermally grown on a fluorine tin oxide (FTO) conductive glass. The resulting 3D-RTNDA film not only facilitates close contact with mixed-ion perovskite (Cs0.05(FA0.83MA0.17)0.95Pb(I0.9Br0.1)3) film, but also promotes the formation of a perovskite layer with larger crystal grain sizes. Both can efficiently retard the interface charge recombination, and thus result in a significantly improved power conversion efficiency (PCE) of 18.0%, improved by 20% as compared to that (15.0%) of the device fabricated with the 1D-RTNRA film. Spectroscopic, electrochemical and photoelectrochemical measurements indicate that the improved photovolatic performance can be mainly ascribed to the largely suppressed hysteresis effect, the increased open-circuit voltage and fill factor stemming from the more effective hole blocking and electron transport. The results presented here demonstrate that 3D-RTNDA film with 3D rutile TiO2 hierarchical nanoarchitecture is a promising ETL selection in designing high-performance PSCs.
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Affiliation(s)
- Chi Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
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17
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Dunlap-Shohl WA, Zhou Y, Padture NP, Mitzi DB. Synthetic Approaches for Halide Perovskite Thin Films. Chem Rev 2018; 119:3193-3295. [DOI: 10.1021/acs.chemrev.8b00318] [Citation(s) in RCA: 334] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wiley A. Dunlap-Shohl
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Yuanyuan Zhou
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Nitin P. Padture
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - David B. Mitzi
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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18
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Gu L, Zhang D, Kam M, Zhang Q, Poddar S, Fu Y, Mo X, Fan Z. Significantly improved black phase stability of FAPbI 3 nanowires via spatially confined vapor phase growth in nanoporous templates. NANOSCALE 2018; 10:15164-15172. [PMID: 30084853 DOI: 10.1039/c8nr03058h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The formamidinium lead iodide (FAPbI3) perovskite has attracted immense research interest as it has much improved stability than methylammonium lead iodide (MAPbI3) while still maintaining excellent optoelectronic properties. Compared to MAPbI3, FAPbI3 has shown an elevated decomposition temperature and a slower decomposition process and therefore it is considered as a more promising candidate for future high-efficiency and reliable optoelectronic devices. However, these excellent optoelectronic properties only exist in the alpha phase and this phase will spontaneously transform into an undesired delta phase with much poorer optoelectronic properties regardless of the environment. This is the main challenge for the application of the FAPbI3 perovskite. Herein, we report a novel strategy to stabilize the cubic black phase of FAPbI3 by using nanoengineering templates. Without further treatment, the black phase can be held over 7 months under ambient conditions and 8 days in an extreme environment with a Relative Humidity (RH) of 97%. A systematic study further reveals that this great improvement can be attributed to the spatial confinement in anodized alumina membrane (AAM) nanochannels, which prohibits the unwanted α-to-δ phase transition by restricting the expansion of NWs in the ab plane, and the excellent passivation against water molecule invasion. Meanwhile, we also demonstrate the potency of these NWs in practical applications by configuring them into photodetectors, which have shown reasonable response and excellent device stability.
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Affiliation(s)
- Leilei Gu
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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19
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Baca AJ, Roberts MJ, Stenger-Smith J, Baldwin L. Manipulating the assembly of perovskites onto soft nanoimprinted titanium dioxide templates. NANOTECHNOLOGY 2018; 29:255301. [PMID: 29596058 DOI: 10.1088/1361-6528/aabac2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Soft nanoimprinted titanium dioxide (TiO2) substrates decorated with methylammonium lead halide perovskite (MAPbI3) crystals were fabricated by controlling the perovskite precursor concentration and volume during spin coat processing combined with the use of hydrophobic TiO2 templates. The patterned growth was demonstrated with different perovskite crystallization methods. We investigated and successfully demonstrated the controlled assembly of two MAPbI3 nanomaterials, one a nanocomposite formed between the perovskite and a hole conducting polymer poly(2,5-bis(N-methyl-N-hexylamino)phenylene vinylene) (BAMPPV), and a second formed from perovskite crystals using common solution based MAPbI3 growth methods (1-step and 2-step processing). Both types of MAPbI3 crystals were fabricated on hydrophobic TiO2 nanotemplates composed of nanowells or grating patterns. Patterned areas as large as 100 μm × 100 μm were achieved. We examined and characterized the substrates using atomic force microscopy, scanning electron microscopy, x-ray diffraction, and energy dispersive spectroscopy. We present the optical properties (i.e. fluorescence and transmission) of soft nanoimprinted nanowells decorated with perovskites demonstrating the successful synthesis of MAPbI3 perovskite nanocrystals. As an example of their use, we demonstrate a two terminal device and show photocurrent response of a perovskite patterned micro-grating. Our method is a nondestructive approach to nanopatterning perovskites, and produces patterned arrays that maintain their photo-electric properties. The results presented herein suggests an attractive route to developing nanopatterned and small area perovskite substrates for applications in photovoltaics, x-ray sensing/detection, image sensor arrays, and others.
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Affiliation(s)
- Alfred J Baca
- Chemistry Branch Naval Air Warfare Center Weapons Division, China Lake, CA 93555, United States of America
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20
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Tsui KH, Li X, Tsoi JKH, Leung SF, Lei T, Chak WY, Zhang C, Chen J, Cheung GSP, Fan Z. Low-cost, flexible, disinfectant-free and regular-array three-dimensional nanopyramid antibacterial films for clinical applications. NANOSCALE 2018; 10:10436-10442. [PMID: 29796449 DOI: 10.1039/c8nr01968a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, a low-cost, scalable and highly repeatable approach was developed to prepare polystyrene films with three-dimensional nanopyramids on the surface. The nanopyramids have a tunable aspect ratio and more importantly, their anti-bacterial performance has been systematically studied. The effectiveness of the nanopyramids on E. coli growth inhibition and the role of the nanostructure aspect ratio were carefully studied through scanning electron microscopy and confocal laser scanning microscopy. The results showed an excellent antibacterial performance with more than 90% reduction in the E. coli population in all nanopyramid samples after a 168 h prolonged incubation time. The nanopyramid film developed here can be used for clinical and commercial applications to prevent the growth of pathogenic bacteria on various surfaces.
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Affiliation(s)
- Kwong-Hoi Tsui
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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21
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Meng X, Zhou J, Hou J, Tao X, Cheung SH, So SK, Yang S. Versatility of Carbon Enables All Carbon Based Perovskite Solar Cells to Achieve High Efficiency and High Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706975. [PMID: 29611234 DOI: 10.1002/adma.201706975] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/10/2018] [Indexed: 06/08/2023]
Abstract
Carbon-based perovskite solar cells (PVSCs) without hole transport materials are promising for their high stability and low cost, but the electron transporting layer (ETL) of TiO2 is notorious for inflicting hysteresis and instability. In view of its electron accepting ability, C60 is used to replace TiO2 for the ETL, forming a so-called all carbon based PVSC. With a device structure of fluorine-doped tin oxide (FTO)/C60 /methylammonium lead iodide (MAPbI3 )/carbon, a power conversion efficiency (PCE) is attained up to 15.38% without hysteresis, much higher than that of the TiO2 ones (12.06% with obvious hysteresis). The C60 ETL is found to effectively improve electron extraction, suppress charge recombination, and reduce the sub-bandgap states at the interface with MAPbI3 . Moreover, the all carbon based PVSCs are shown to resist moisture and ion migration, leading to a much higher operational stability under ambient, humid, and light-soaking conditions. To make it an even more genuine all carbon based PVSC, it is further attempted to use graphene as the transparent conductive electrode, reaping a PCE of 13.93%. The high performance of all carbon based PVSCs stems from the bonding flexibility and electronic versatility of carbon, promising commercial developments on account of their favorable balance of cost, efficiency, and stability.
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Affiliation(s)
- Xiangyue Meng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Junshuai Zhou
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jie Hou
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xia Tao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Sin Hang Cheung
- Department of Physics and Institute of Advanced Materials, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Shu Kong So
- Department of Physics and Institute of Advanced Materials, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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22
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Chen H, Yang S. Carbon-Based Perovskite Solar Cells without Hole Transport Materials: The Front Runner to the Market? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28220961 DOI: 10.1002/adma.201603994] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/14/2016] [Indexed: 05/05/2023]
Abstract
Organometal trihalide perovskite solar cells (PSCs) have garnered recent interest in the scientific community. In the past few years, they have achieved power conversion efficiencies comparable to traditional commercial solar cells (e.g., crystalline Si, CuInGaSe and CdTe) due to their low-cost of production via solution-processed fabrication techniques. However, the stability of PSCs must be addressed before their commercialization is viable. Among various kinds of PSCs, carbon-based PSCs without hole transport materials (C-PSCs) seem to be the most promising for addressing the stability issue because carbon materials are stable, inert to ion migration (which originates from perovskite and metal electrodes), and inherently water-resistant. Despite the significant development of C-PSCs since they were first reported in 2013, some pending issues still need to be addressed to increase their commercial competitiveness. Herein, recent developments in C-PSCs, including (1) device structure and working principles, (2) categorical progress of and comparison between meso C-PSCs, embedment C-PSCs and paintable PSCs, are reviewed. Promising research directions are then suggested (e.g., materials, interfaces, structure, stability measurement and scaling-up of production) to further improve and promote the commercialization of C-PSCs.
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Affiliation(s)
- Haining Chen
- School of Materials Science and Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, 100191, P. R. China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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23
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Cong S, Yang H, Lou Y, Han L, Yi Q, Wang H, Sun Y, Zou G. Organic Small Molecule as the Underlayer Toward High Performance Planar Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2295-2300. [PMID: 28032749 DOI: 10.1021/acsami.6b12268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The underlayer plays an important role for organic-inorganic hybrid perovskite formation and charge transport in perovskite solar cells (PSCs). Here, we employ a classical organic small molecule, 5,6,11,12-tetraphenyltetracene (rubrene), as the underlayer of perovskite films to achieve 15.83% of power conversion efficiency with remarkable moisture tolerance exposed to the atmosphere. Experiments demonstrate rubrene hydrophobic underlayer not only drives the crystalline grain growth of high quality perovskite, but also contributes to the moisture tolerance of PSCs. Moreover, the matching energy level of the desirable underlayer is conductive to extracting holes and blocking electrons at anode in PSCs. This introduction of organic small molecule into PSCs provides alternative materials for interface optimization, as well as platform for flexible and wearable solar cells.
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Affiliation(s)
- Shan Cong
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Hao Yang
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Yanhui Lou
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Liang Han
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Qinghua Yi
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Haibo Wang
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Yinghui Sun
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
| | - Guifu Zou
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou, 215006, China
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24
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Umeyama T, Imahori H. A chemical approach to perovskite solar cells: control of electron-transporting mesoporous TiO2and utilization of nanocarbon materials. Dalton Trans 2017; 46:15615-15627. [DOI: 10.1039/c7dt02421e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Perspective highlights recent chemical approaches to perovskite solar cells, including the control of electron-transporting mesoporous TiO2and the utilization of nanocarbon materials.
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Affiliation(s)
- Tomokazu Umeyama
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Hiroshi Imahori
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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25
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Chang X, Li W, Zhu L, Liu H, Geng H, Xiang S, Liu J, Chen H. Carbon-Based CsPbBr 3 Perovskite Solar Cells: All-Ambient Processes and High Thermal Stability. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33649-33655. [PMID: 27960426 DOI: 10.1021/acsami.6b11393] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The device instability has been an important issue for hybrid organic-inorganic halide perovskite solar cells (PSCs). This work intends to address this issue by exploiting inorganic perovskite (CsPbBr3) as light absorber, accompanied by replacing organic hole transport materials (HTM) and the metal electrode with a carbon electrode. All the fabrication processes (including those for CsPbBr3 and the carbon electrode) in the PSCs are conducted in ambient atmosphere. Through a systematical optimization on the fabrication processes of CsPbBr3 film, carbon-based PSCs (C-PSCs) obtained the highest power conversion efficiency (PCE) of about 5.0%, a relatively high value for inorganic perovskite-based PSCs. More importantly, after storage for 250 h at 80 °C, only 11.7% loss in PCE is observed for CsPbBr3 C-PSCs, significantly lower than that for popular CH3NH3PbI3 C-PSCs (59.0%) and other reported PSCs, which indicated a promising thermal stability of CsPbBr3 C-PSCs.
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Affiliation(s)
- Xiaowen Chang
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Weiping Li
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Liqun Zhu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Huicong Liu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Huifang Geng
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Sisi Xiang
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Jiaming Liu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Haining Chen
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
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26
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Chang X, Li W, Chen H, Zhu L, Liu H, Geng H, Xiang S, Liu J, Zheng X, Yang Y, Yang S. Colloidal Precursor-Induced Growth of Ultra-Even CH 3NH 3PbI 3 for High-Performance Paintable Carbon-Based Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30184-30192. [PMID: 27739309 DOI: 10.1021/acsami.6b09925] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Carbon-based hole transport material (HTM)-free perovskite solar cells (PSCs) have attracted intense attention due to their relatively high stability. However, their power conversion efficiency (PCE) is still low, especially for the simplest paintable carbon-based PSCs (C-PSCs), whose performance is greatly limited by poor contact at the perovskite/carbon interface. To enhance interface contact, it is important to fabricate an even-surface perovskite layer in a porous scaffold, which is not usually feasible due to roughness of the crystal precursor. Herein, colloidal engineering is applied to replace the traditional crystal precursor with a colloidal precursor, in which a small amount of dimethyl sulfoxide (DMSO) is added into the conventional PbI2 dimethylformamide (DMF) solution. After deposition, PbI2(DMSO) adduct colloids (which are approximately tens of nanometers in size) are stabilized and dispersed in DMF to form a colloidal film. Compared with PbI2 and PbI2(DMSO) adduct crystal precursors deposited from pure DMF and DMSO solvents, respectively, the PbI2(DMSO) adduct colloidal precursor is highly mobile and flexible, allowing an ultra-even surface to be obtained in a TiO2 porous scaffold. Furthermore, this ultra-even surface is well-maintained after chemical conversion to CH3NH3PbI3 in a CH3NH3I solution. As a result, the contact at the CH3NH3PbI3/carbon interface is significantly enhanced, which largely boosts the fill factor and PCE of C-PSCs. Impressively, the achieved champion PCE of 14.58% is among the highest reported for C-PSCs.
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Affiliation(s)
- Xiaowen Chang
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Weiping Li
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Haining Chen
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Liqun Zhu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Huicong Liu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Huifang Geng
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Sisi Xiang
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Jiaming Liu
- School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
| | - Xiaoli Zheng
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Yinglong Yang
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
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27
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High-quality perovskite in thick scaffold: a core issue for hole transport material-free perovskite solar cells. Sci Bull (Beijing) 2016. [DOI: 10.1007/s11434-016-1164-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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He X, Bai Y, Chen H, Zheng X, Yang S. High Performance Perovskite Solar Cells through Surface Modification, Mixed Solvent Engineering and Nanobowl-Assisted Light Harvesting. ACTA ACUST UNITED AC 2016. [DOI: 10.1557/adv.2016.318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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29
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Zhang F, Song J, Chen M, Liu J, Hao Y, Wang Y, Qu J, Zeng P. Enhanced perovskite morphology and crystallinity for high performance perovskite solar cells using a porous hole transport layer from polystyrene nanospheres. Phys Chem Chem Phys 2016; 18:32903-32909. [DOI: 10.1039/c6cp06405a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(1) Porous-PEDOT:PSS from PS nanospheres. (2) The perovskite quality is improved, with the improved crystallinity and enhanced grain sizes. (3) High-performance perovskite solar cells.
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Affiliation(s)
- Fan Zhang
- Taiyuan University of Technology
- Taiyuan 030024
- China
- Institute of Optoelectronics
- Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province
| | - Jun Song
- Institute of Optoelectronics
- Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province
- Shenzhen University
- Shenzhen 518060
- China
| | - Ming Chen
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Junchen Liu
- Institute of Optoelectronics
- Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province
- Shenzhen University
- Shenzhen 518060
- China
| | - Yuying Hao
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yuncai Wang
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Junle Qu
- Institute of Optoelectronics
- Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province
- Shenzhen University
- Shenzhen 518060
- China
| | - Pengju Zeng
- Institute of Optoelectronics
- Key Lab of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province
- Shenzhen University
- Shenzhen 518060
- China
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