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Article
Nanoscience & Nanotechnology
Rui Han et al.
Summary: In this study, a novel strategy utilizing ionic liquids to enhance the carrier mobility of colloidal all-inorganic CsPbI3 perovskite quantum dot (PQD) films is proposed. By coupling the ionic compounds in the ionic liquids with CsPbI3 PQDs, efficient charge transport and reduced defect density in the assembled PQD solid films are achieved. The resulting CsPbI3 PQD solar cell exhibits significantly improved efficiency and stable performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Dongjie Wang et al.
Summary: This study demonstrates the fabrication of high-performance carbon-based mesoscopic perovskite solar cells (MPSCs) by adding an ionic liquid additive, methylammonium acetate (MAAc), into methylammonium lead triiodide (MAPbI(3)) perovskite. The addition of MAAc effectively controls the crystallization kinetics of MAPbI(3) and improves the crystallinity and defect density of the perovskite films. The optimized MAAc-engineered MPSCs achieve a champion power conversion efficiency (PCE) of 13.54% and demonstrate better air stability compared to control devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Jingwei Zhu et al.
Summary: By depositing DCC at the PVSK/carbon back interface, an effective interface engineering approach is employed to passivate surface defects, improve contact, and boost the efficiency of carbon-based perovskite solar cells. This modification not only enhances the performance but also ensures long-term stability of the device under harsh conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xuejie Zhu et al.
Summary: A new approach using an ionic liquid was designed to improve the stability and performance of metal-halide perovskite solar cells. Experimental results showed that this method effectively enhances the photovoltaic performance while exhibiting outstanding stability characteristics.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Applied
Deyu Gao et al.
Summary: Interfacial defects and energy barrier contribute to interfacial non-radiative recombination losses. A multifunctional buried interface modulation strategy using 4-fluoro-phenylammonium tetrafluoroborate (FBABF(4)) was developed to manage the interface between the electron transport layer and the perovskite layer. The approach successfully ameliorated the interfacial contact through simultaneous fluorination of the anion and cation in the ionic liquid molecule.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Rujia Hu et al.
Summary: The use of L-cysteine as an interfacial chemical bridge between SnO2 and perovskite in perovskite solar cells has been found to improve the connection between them, accelerate interface charge extraction, and reduce interface defects, thereby enhancing the performance of perovskite solar cells.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Hyun-Jung Lee et al.
Summary: The main aim of this study was to enhance the quality of slot-die-processed perovskite film layer by using an additive process, which could improve the performance and stability of perovskite devices. The addition of 2-hydroxyethyl acrylate (HEA) as an effective functional group controlled the growth, grain size, and defects of perovskite. The resulting device fabricated with HEA as an additive achieved a high efficiency of 16.08% and maintained an initial efficiency of 80% under air for 95 days.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Physical
Shuxian Du et al.
Summary: The management of precursor concentration is crucial for obtaining high-crystalline-quality wide-bandgap perovskite materials and high-performance perovskite solar cells.
Article
Chemistry, Applied
Fangfang Fan et al.
Summary: Recent progress has shown that ionic liquids (ILs) can contribute to the improvement of perovskite solar cells (PSCs) in various aspects, such as thin-film synthesis, charge-transport layer performance, and interfacial energetics. The interactions between ILs and perovskites play a crucial role in enhancing the efficiency and stability of PSCs, representing an important research paradigm in energy chemistry.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Jiwei Liang et al.
Summary: This study reveals the origins and influences of metallic lead (Pb-0) in metal-halide perovskites, and provides a strategy for avoiding the formation of detrimental Pb-0 byproducts. This has significant implications for enhancing the performance of devices such as perovskite solar cells.
Article
Chemistry, Multidisciplinary
Jingwei Zhu et al.
Summary: By selectively anchoring (pseudo-) halide anions to the (110) plane, the growth of defective (110) plane is suppressed, leading to the formation of (h00) plane-oriented film, and ultimately improving the efficiency of perovskite solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Environmental
Guizhi Zhang et al.
Summary: A novel hole transport material CSI NCs was synthesized and used in carbon electrode-based perovskite solar cells, leading to improved hole extraction efficiency and photovoltaic performance by optimizing energy level alignment between the perovskite and carbon electrode.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Xiaobing Wang et al.
Summary: This study successfully improved the stability and performance of organic-inorganic hybrid metal halide-based perovskite solar cells through additive engineering. The addition of Lansoprazole in the cells resulted in the formation of a moisture-oxygen barrier, provision of lone electron pair, adjustment of Fermi-level, and reduction of grain boundaries and defects. The modified device not only achieved excellent PCE enhancement, but also showed excellent environmental and operational stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Yuelin Wei et al.
Summary: This paper demonstrates a simple and effective method to improve the performance of perovskite solar cells by intercalating cystamine dihydrochloride (CMDR) between the electron transport layers (ETLs) and the perovskite layer (PVK). The CMDR reduces interface defects, improves crystallinity, and enhances conductivity and electron extraction/transmission efficiency, resulting in an increased power conversion efficiency of the solar cells.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Applied
Fei Wang et al.
Summary: This study investigated the mechanism of ionic-liquid-assisted perovskite film formation using a two-step method. The research found that the introduced ionic liquid methylammonium formate (MAFa) can lower the perovskite formation enthalpy and accelerate the crystallization process. The ionic liquid can also fill up halide vacancies in perovskite crystals, resulting in reduced trap states. With the help of MAFa IL, uniform perovskite films with larger grains and lower defect density were prepared, and the corresponding device efficiency exceeded 23% with significantly improved stability.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shumao Wang et al.
Summary: In this study, a high-conductivity thiocyanate ionic liquid was introduced into perovskite solar cells, providing new insights into the selection of passivation agents and achieving high efficiency and stability.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Shengdan Xie et al.
Summary: Metal halide perovskite single crystals have better optoelectronic properties and higher stability than their polycrystalline thin-film counterparts. However, the operational stability of single-crystal perovskite solar cells (PSCs) still needs improvement. By optimizing the ion diffusion velocity, the crystal quality of thin single crystals can be improved, reducing the light-induced degradation of material properties. The experiment shows that the optimized single-crystal PSCs maintain high efficiency after continuous operation for 330 hours.
ACS MATERIALS LETTERS
(2022)
Article
Engineering, Environmental
Junshuai Zhang et al.
Summary: This study investigates the effects of various pi-conjugated pyridine derivatives on the electron-donating ability and photovoltaic performances of inorganic CsPbIBr2 perovskite film. The results demonstrate that the coordination sites and structure hindrance play a crucial role in determining the photovoltaic performances. The bipyridine passivated device shows improved efficiency and stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Jinbiao Jia et al.
Summary: Passivating defects to suppress recombination is an effective strategy to improve the performance of third-generation perovskite-based solar cells. The incorporation of tris(pentafluorophenyl)borane in SnO2-based planar perovskite solar cells effectively passivates Pb-0 defects, decreases grain boundaries quantity, enhances carrier transportation capability, and leads to a higher efficiency of 21.42%. Furthermore, the stability tests demonstrate that incorporating tris(pentafluorophenyl)borane in perovskite solar cells contributes to the device's stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xuejie Zhu et al.
Summary: In this study, DMIMPF6 ionic liquid was used to passivate surface defects of perovskite, resulting in increased solar cell efficiency and enhanced long-term stability of the device.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Jae-Ho Lee et al.
Summary: Highly efficient perovskite solar cells based on CsFAMAPbIBr require a strictly controlled environment due to the instability of formamidinium ions in humid conditions. This study investigates the effect of different coating methods on the fabrication and performance of CsFAMAPbIBr films, with dynamic spin coating showing a higher power conversion efficiency (PCE) of 19.70% compared to static spin coating at 16.01%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Beibei Shi et al.
Summary: CuI, a promising hole transport material with high hole mobility and compatibility with perovskite materials, was first fabricated by vacuum thermal evaporation for n-i-p perovskite solar cells. Results showed that 200 nm thick CuI films had the best carrier extraction ability without obvious influence on the perovskite underlayer. Furthermore, introducing reduced graphene oxides improved the stability of the device by preventing accelerated attenuation caused by CuI reacting with Au.
Article
Chemistry, Physical
Guixiang Li et al.
Summary: The use of n-butylammonium acetate (BAAc) to modulate tin coordination in the crystallization process results in more compact and preferentially oriented perovskite films. Perovskite solar cells processed with BAAc show higher power conversion efficiency and improved stability, paving the way for controlled tin-based perovskite crystallization in lead-free photovoltaics.
ADVANCED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Xiaoyu Deng et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Nanoscience & Nanotechnology
Wenyu Zhang et al.
ACS APPLIED MATERIALS & INTERFACES
(2020)
Review
Chemistry, Multidisciplinary
Jin Young Kim et al.
Article
Chemistry, Physical
Haiyan Li et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Chemistry, Physical
Zonghao Liu et al.
ADVANCED ENERGY MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Akihiro Kojima et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2009)
