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Showing 1-30 of 147 results for "142379" within Papers
Giulia Grancini et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 18(17), 2381-2389 (2017-06-20)
With a power conversion efficiency (PCE) exceeding 22 %, perovskite solar cells (PSCs) have thrilled photovoltaic research. However, the interface behavior is still not understood and is a hot topic of research: different processes occur over a hierarchy of timescales, from
Jiang Sheng et al.
Physical chemistry chemical physics : PCCP, 18(47), 32293-32301 (2016-11-17)
Monodisperse anatase hierarchical microspheres were produced via a simple sol-gel process. These microspheres in the sub-wavelength diameter of 320-750 nm could scatter visible light efficiently as whispering gallery modes (WGM) corresponding to the dye sensitized wavelength, and load a large
Matthew Kam et al.
Scientific reports, 9(1), 6963-6963 (2019-05-08)
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
Yu Yu et al.
Nanoscale, 9(7), 2569-2578 (2017-02-06)
Perovskite films are a promising candidate for future highly efficient and low-cost solar cells. The long diffusion length of charge carriers in the perovskite film makes its architecture fabrication seem unnecessary, while the rapid crystallization process increases the difficulty in
Alberto Scalia et al.
Frontiers in chemistry, 6, 443-443 (2018-10-16)
A dye-sensitized solar module (DSSM) and a high voltage all-solid-state electrochemical double layer capacitor (EDLC) are, for the first time, implemented in a compact Harvesting-Storage (HS) device. Conductive glass is employed as current collecting substrate for both DSSM and EDLC
Hui Zhang et al.
ACS applied materials & interfaces, 11(9), 9083-9092 (2019-02-09)
To bring hybrid lead halide perovskite solar cells toward the Shockley-Queisser limit requires lowering the band gap while simultaneously increasing the open-circuit voltage. This, to some extent divergent objective, may demand the use of large cations to obtain a perovskite
Bumjin Gil et al.
Nanomaterials (Basel, Switzerland), 10(9) (2020-08-30)
High-mobility inorganic CuCrO2 nanoparticles are co-utilized with conventional poly(bis(4-phenyl)(2,5,6-trimethylphenyl)amine) (PTAA) as a hole transport layer (HTL) for perovskite solar cells to improve device performance and long-term stability. Even though CuCrO2 nanoparticles can be readily synthesized by hydrothermal reaction, it is
Yuhang Liu et al.
Science advances, 5(6), eaaw2543-eaaw2543 (2019-06-13)
Preventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a two-dimensional (2D) A2PbI4 perovskite layer using pentafluorophenylethylammonium (FEA) as a fluoroarene cation inserted between the 3D
Zeguo Tang et al.
Scientific reports, 7(1), 12183-12183 (2017-09-25)
Potassium-doped organometal halide perovskite solar cells (PSCs) of more than 20% power conversion efficiency (PCE) without I-V hysteresis were constructed. The crystal lattice of the organometal halide perovskite was expanded with increasing of the potassium ratio, where both absorption and
Kai Wang et al.
Nanomaterials (Basel, Switzerland), 9(7) (2019-07-03)
Hole transport materials are indispensable to high efficiency perovskite solar cells. Two new hole transporting materials (HTMs), named 4,4'-(9-nonyl-9H-carbazole-3,6-diyl)bis (N,N-bis(4-methoxyphenyl)aniline) (CZTPA-1) and 4,4'-(9-methyl-9H-carbazole-3,6-diyl)bis (N,N-bis(4-methoxyphenyl)aniline)(CZTPA-2), were developed by different alkyl substitution methods. The two compounds, containing a carbazole core and triphenylamine
Yonghui Lee et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 5(6), 1800130-1800130 (2018-06-26)
Planar perovskite solar cells using low-temperature atomic layer deposition (ALD) of the SnO2 electron transporting layer (ETL), with excellent electron extraction and hole-blocking ability, offer significant advantages compared with high-temperature deposition methods. The optical, chemical, and electrical properties of the
Reeti Bajpai et al.
ACS applied materials & interfaces, 3(10), 3884-3889 (2011-09-01)
Composites of few layered graphene (G) and platinum (Pt) nanoparticles (NP) with different loadings of Pt were used as counter electrode (CE) in dye-sensitized solar cell (DSSC). NPs were deposited directly on to G using pulsed laser ablation method (PLD).
Tae-Hee Han et al.
Nature communications, 10(1), 520-520 (2019-02-02)
Manipulation of grain boundaries in polycrystalline perovskite is an essential consideration for both the optoelectronic properties and environmental stability of solar cells as the solution-processing of perovskite films inevitably introduces many defects at grain boundaries. Though small molecule-based additives have
Pengjie Hang et al.
Advanced materials (Deerfield Beach, Fla.), 33(10), e2006910-e2006910 (2021-02-06)
It is crucial to make perovskite solar cells sustainable and have a stable operation under natural light soaking before they become commercially acceptable. Herein, a small amount of the small molecule bathophenanthroline (Bphen) is introduced into [6,6]-phenyl-C61 -butyric acid methyl
Qingshun Dong et al.
Nature communications, 12(1), 973-973 (2021-02-14)
The perovskite solar cell has emerged rapidly in the field of photovoltaics as it combines the merits of low cost, high efficiency, and excellent mechanical flexibility for versatile applications. However, there are significant concerns regarding its operational stability and mechanical
Jin-Wook Lee et al.
Nature communications, 9(1), 3021-3021 (2018-08-03)
Compositional engineering has been used to overcome difficulties in fabricating high-quality phase-pure formamidinium perovskite films together with its ambient instability. However, this comes alongside an undesirable increase in bandgap that sacrifices the device photocurrent. Here we report the fabrication of
Yue Yu et al.
ChemSusChem, 9(23), 3288-3297 (2016-10-27)
Formamidinium lead triiodide (FAPbI
Xuemei Dong et al.
Nanoscale, 10(15), 7218-7227 (2018-04-07)
ZnO as a promising electron transport layer (ETL) to TiO2 for perovskite solar cells (PSCs) has achieved a power conversion efficiency (PCE) of 18.9%; however, this is still lower than that obtained for TiO2-based PSCs (higher than 20%). Herein, we
Zhun Yao et al.
Small (Weinheim an der Bergstrasse, Germany), 16(43), e2003582-e2003582 (2020-10-02)
The morphological quality of the photoactive layer is the key component affecting the performance metrics of a photovoltaic device. Therefore, fine adjustment of the crystallization dynamics is urgently required. By manipulating the amount of dimethyl sulfoxide (DMSO) remaining in the
Miki Yamaguchi et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 33(9), 1041-1046 (2017-09-12)
The effects of various sample parameters for solid-state dye sensitized solar cells were studied with carrier dynamics measurements and electrochemical measurements. Although many parameters and processes have been decided based on the experience of researchers, the chemical and physical reasons
Hui Li et al.
Chemical reviews, 120(18), 9835-9950 (2020-08-14)
Multi-junction (tandem) solar cells (TSCs) consisting of multiple light absorbers with considerably different band gaps show great potential in breaking the Shockley-Queisser (S-Q) efficiency limit of a single junction solar cell by absorbing light in a broader range of wavelengths.
Vignesh Murugadoss et al.
Nanoscale, 11(38), 17579-17589 (2019-09-26)
Nickel selenide (NiSe) nanoparticles were grown on graphene nanosheets (GN) with different mass ratios to obtain their corresponding NiSe/GNx (x = 0.25 to 1.00) nanohybrids by a facile in situ hydrothermal process to integrate the advantages of the high specific
Laxman Gouda et al.
The journal of physical chemistry letters, 6(22), 4640-4645 (2015-12-02)
The high open-circuit potential (Voc) achieved by perovskite solar cells (PSCs) is one of the keys to their success. The Voc analysis is essential to understand their working mechanisms. A large number of CH3NH3PbI3-xClx PSCs were fabricated on single large-area
Federico Bella et al.
Nanoscale, 7(28), 12010-12017 (2015-06-26)
In the field of dye-sensitized solar cells, polymer electrolytes are among the most studied materials due to their ability to ensure both high efficiency and stability, the latter being a critical point of these devices. Hundreds of polymeric matrices have
O V Oyelade et al.
Scientific reports, 10(1), 7183-7183 (2020-04-30)
This paper presents the results of a combined experimental and analytical/computational study of the effects of pressure on photoconversion efficiencies of perovskite solar cells (PSCs). First, an analytical model is used to predict the effects of pressure on interfacial contact
Shuichi Mayumi et al.
Nanoscale research letters, 12(1), 513-513 (2017-08-31)
Photoanodes comprising Au nanoparticles (GNPs) and thin TiO
Pei-Shan Li et al.
Nanomaterials (Basel, Switzerland), 9(6) (2019-06-27)
Low-temperature, solution-processed, highly efficient hybrid organic/inorganic perovskite planar heterojunction solar cells were fabricated by incorporating reactive crystalline titania (h-TAc) into MAPbI3 layers. The h-TAc was prepared by the sol-gel reaction at low temperature followed by solvothermal treatment. The photoelectrical properties
Felismina T C Moreira et al.
Scientific reports, 8(1), 10205-10205 (2018-07-07)
This work describes for the first time the integration of Dye Sensitized Solar Cell (DSSC) technology in biosensors and biomimetic materials, opening doors towards a new dimension of autonomous screening devices that may be used in point-of-care, with zero-power requirements.
Wade C Henke et al.
ChemSusChem, 10(22), 4589-4598 (2017-10-13)
We demonstrate that [Cp*Rh] complexes bearing substituted 2,2'-bipyridyl ligands are effective hydrogen evolution catalysts (Cp*=η
Zonghao Liu et al.
Nature communications, 9(1), 3880-3880 (2018-09-27)
Besides high efficiency, the stability and reproducibility of perovskite solar cells (PSCs) are also key for their commercialization. Herein, we report a simple perovskite formation method to fabricate perovskite films with thickness over 1 μm in ambient condition on the basis
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