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Showing 1-30 of 147 results for "142379" within Papers
Nam-Koo Kim et al.
Scientific reports, 7(1), 4645-4645 (2017-07-07)
In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI
Yingzhuang Ma et al.
ChemSusChem, 10(12), 2677-2684 (2017-04-20)
It is commonly believed that excess PbI
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
Haizhou Lu et al.
Science (New York, N.Y.), 370(6512) (2020-10-03)
Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We
Yepin Zhao et al.
Advanced materials (Deerfield Beach, Fla.), 32(17), e1907769-e1907769 (2020-03-10)
Intrinsically, detrimental defects accumulating at the surface and grain boundaries limit both the performance and stability of perovskite solar cells. Small molecules and bulkier polymers with functional groups are utilized to passivate these ionic defects but usually suffer from volatility
Yan Jiang et al.
ACS nano, 14(6), 7502-7512 (2020-05-28)
Four-terminal (4-T) tandem solar cells (e.g., perovskite/CuInSe2 (CIS)) rely on three transparent conductive oxide electrodes with high mobility and low free carrier absorption in the near-infrared (NIR) region. In this work, a reproducible In2O3:H (IO:H) film deposition process is developed
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
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
Chaneui Park et al.
ChemSusChem, 13(12), 3261-3268 (2020-03-28)
Organometal halide perovskite (OHP) solar cells have been intensively studied because of their promising optoelectronic features, which has resulted in high power conversion efficiencies >23 %. Although OHP solar cells exhibit high power conversion efficiencies, their relatively poor stability is a
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
Shuichi Mayumi et al.
Nanoscale research letters, 12(1), 513-513 (2017-08-31)
Photoanodes comprising Au nanoparticles (GNPs) and thin TiO
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
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
Zhou Liu et al.
Nano letters, 20(2), 1296-1304 (2020-01-28)
The heterogeneous stacking of a thin two-dimensional (2D) perovskite layer over the three-dimensional (3D) perovskite film creates a sophisticated architecture for perovskite solar cells (PSCs). It combines the remarkable thermal and environmental stabilities of 2D perovskites with the superior optoelectronic
Jun Jiang et al.
ChemSusChem, 13(2), 412-418 (2019-11-05)
Perovskite solar cells are sensitive to subtle changes in atmospheric conditions, resulting in problems such as the collapse of the perovskite structure and sharp drops in efficiency. Internal defects are also a big obstacle for high-quality polycrystalline perovskites. At present
Vittoria Novelli et al.
Physical chemistry chemical physics : PCCP, 19(40), 27670-27681 (2017-10-07)
By optimizing the lithium concentration in an electrolyte to 50 mmol L
Robertas Tiazkis et al.
Scientific reports, 7(1), 150-150 (2017-03-10)
The molecular structure of the hole transporting material (HTM) play an important role in hole extraction in a perovskite solar cells. It has a significant influence on the molecular planarity, energy level, and charge transport properties. Understanding the relationship between
Xu Zhang et al.
Advanced materials (Deerfield Beach, Fla.), 30(21), e1707166-e1707166 (2018-04-04)
Ruddlesden-Popper reduced-dimensional hybrid perovskite (RDP) semiconductors have attracted significant attention recently due to their promising stability and excellent optoelectronic properties. Here, the RDP crystallization mechanism in real time from liquid precursors to the solid film is investigated, and how the
Bhumika Chaudhary et al.
ChemSusChem, 10(11), 2473-2479 (2017-04-04)
It is well known that the surface trap states and electronic disorders in the solution-processed CH
Arya Hakimian et al.
Materials (Basel, Switzerland), 12(3) (2019-02-14)
The photoactive materials broadly applied in catalysis and energy conversion are generally composed of metal oxides. Among these oxides, ZnO showed a promising photocatalytic activity; however, traditional synthetic routes generated by-products and large amounts of secondary waste. Herein, we report
Suri Babu Akula et al.
Inorganic chemistry, 56(21), 12987-12995 (2017-10-12)
We report the synthesis, characterization, and photovoltaic properties of four ruthenium complexes (CI101, CBTR, CB111, and CB108) having various N-heterocyclic carbene ancillary ligands, pyridine-imidazole, -benzimidazole, -dithienobenzimidazole, and -phenanthroimidazole, respectively. These complexes were designed to investigate the effect of extended conjugation
Min-Chuan Shih et al.
Nano letters, 17(2), 1154-1160 (2017-01-18)
The presence of the PbI
Firouzeh Ebadi et al.
Nature communications, 10(1), 1574-1574 (2019-04-07)
So-called negative capacitance seems to remain an obscure feature in the analysis of the frequency-dependent impedance of perovskite solar cells. It belongs to one of the puzzling peculiarities arising from the mixed ionic-electronic conductivity of this class of semiconductor. Here
Gerrit Boschloo et al.
The journal of physical chemistry. B, 110(26), 13144-13150 (2006-06-30)
Addition of 4-tert-butylpyridine (4TBP) to redox electrolytes used in dye-sensitized TiO2 solar cells has a large effect on their performance. In an electrolyte containing 0.7 M LiI and 0.05 M I2 in 3-methoxypropionitrile, addition of 0.5 M 4TBP gave an
Fumin Li et al.
Nanoscale research letters, 13(1), 216-216 (2018-07-22)
We report a new method as UV treatment of low-temperature processed to obtain tin oxide (SnO2) electron transport layers (ETLs). The results show that the high quality of ETLs can be produced by controlling the thickness of the film while
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
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
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.
Jiajiu Ye et al.
Small (Weinheim an der Bergstrasse, Germany), 17(5), e2005671-e2005671 (2020-12-29)
Tin oxide (SnO2 ) is an emerging electron transport layer (ETL) material in halide perovskite solar cells (PSCs). Among current limitations, open-circuit voltage (VOC ) loss is one of the major factors to be addressed for further improvement. Here a
Bin Chen et al.
Nature communications, 11(1), 1257-1257 (2020-03-11)
Tandem solar cells involving metal-halide perovskite subcells offer routes to power conversion efficiencies (PCEs) that exceed the single-junction limit; however, reported PCE values for tandems have so far lain below their potential due to inefficient photon harvesting. Here we increase
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