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Showing 1-30 of 147 results for "142379" within Papers
Ming-Chung Wu et al.
Small (Weinheim an der Bergstrasse, Germany), 16(41), e2002201-e2002201 (2020-09-22)
Perovskite solar cells (PSCs) have become one of the most promising renewable energy converting devices. However, in order to reach a sufficiently high power conversion efficiency (PCE), the PSCs typically require a high-temperature sintering process to prepare mesostructured TiO2 as
Roles of MACl in Sequentially Deposited Bromine-Free Perovskite Absorbers for Efficient Solar Cells.
Feihong Ye et al.
Advanced materials (Deerfield Beach, Fla.), 33(3), e2007126-e2007126 (2020-12-10)
So far, the combination of methylammonium bromide/methylammonium chloride (MABr/MACl) or methylammonium iodide (MAI)/MACl is the most frequently used additives to stabilize formamidinium lead iodide (FAPbI3 ) fabricated by the sequential deposition method. However, the enlarged bandgap due to the addition
Qi Peng et al.
Frontiers in chemistry, 8, 825-825 (2020-10-08)
The long-term stability of perovskite solar cells (PSCs) remains an issue impeding their commercialization. Generally, polycrystalline perovskite thin films have many defects on the grain boundaries, which affect the optoelectronic performance and stability of the devices under moisture, heat, illumination
Shih-Chieh Yeh et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(59), 14747-14759 (2017-08-02)
Seven donor and acceptor 2,6-disubstituted 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dyes have been synthesized and characterized. Including MPBTCA, which is a known compound, the seven BODIPY dyes have been characterized by varied physical methods, such as UV/Visible absorption spectroscopy, low energy photo-electron spectroscopy
Jun Peng et al.
Science (New York, N.Y.), 371(6527), 390-395 (2021-01-23)
Polymer passivation layers can improve the open-circuit voltage of perovskite solar cells when inserted at the perovskite-charge transport layer interfaces. Unfortunately, many such layers are poor conductors, leading to a trade-off between passivation quality (voltage) and series resistance (fill factor
Jayita Patwari et al.
Beilstein journal of nanotechnology, 8, 1705-1713 (2017-09-07)
In the present study, protoporphyrin IX (PPIX) and squarine (SQ2) have been used in a co-sensitized dye-sensitized solar cell (DSSC) to apply their high absorption coefficients in the visible and NIR region of the solar spectrum and to probe the
Huiwu Yu et al.
Advanced materials (Deerfield Beach, Fla.), 32(34), e2001571-e2001571 (2020-07-10)
Creating colloids of liquid metal with tailored dimensions has been of technical significance in nano-electronics while a challenge remains for generating supranano (<10 nm) liquid metal to unravel the mystery of their unconventional functionalities. Present study pioneers the technology of pulsed
Xiaodong Ren et al.
Nanoscale, 8(6), 3816-3822 (2016-01-28)
Regulating the temperature during the direction contact and intercalation process (DCIP) for the transition from PbI2 to CH3NH3PbI3 modulated the crystallinity, crystal grain size and crystal grain orientation of the perovskite films. Higher temperatures produced perovskite films with better crystallinity
Like Huang et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 7(6), 1902656-1902656 (2020-03-21)
Efficient electron transport layer-free perovskite solar cells (ETL-free PSCs) with cost-effective and simplified design can greatly promote the large area flexible application of PSCs. However, the absence of ETL usually leads to the mismatched indium tin oxide (ITO)/perovskite interface energy
Valerio Sarritzu et al.
Scientific reports, 7, 44629-44629 (2017-03-21)
Metal-halide perovskite solar cells rival the best inorganic solar cells in power conversion efficiency, providing the outlook for efficient, cheap devices. In order for the technology to mature and approach the ideal Shockley-Queissier efficiency, experimental tools are needed to diagnose
Elizabeth M Tennyson et al.
ACS nano, 13(2), 1538-1546 (2018-12-27)
Perovskite solar cells that incorporate small concentrations of Cs in their A-site have shown increased lifetime and improved device performance. Yet, the development of fully stable devices operating near the theoretical limit requires understanding how Cs influences perovskites' electrical properties
Parnian Ferdowsi et al.
Scientific reports, 10(1), 22260-22260 (2020-12-19)
Wide band-gap perovskite solar cells have the potential for a relatively high output voltage and resilience in a degradation-inducing environment. Investigating the reasons why high voltages with adequate output power have not been realized yet is an underexplored part in
Mehdi Mousavi-Kamazani et al.
Ultrasonics sonochemistry, 39, 233-239 (2017-07-25)
Tellurium inherently tends to form 1-D structures and while the 0-D Te nanostructures have better properties and applications in solar cell. In the present study, 0-D Te nanostructures including rice-like and spherical nanoparticles with the particle size of 15-40nm were
Vapor-Assisted Ex-Situ Doping of Carbon Nanotube toward Efficient and Stable Perovskite Solar Cells.
Jin-Wook Lee et al.
Nano letters, 19(4), 2223-2230 (2018-12-06)
Single-walled carbon nanotubes (CNTs) has been considered as a promising material for a top electrode of perovskite solar cells owing to its hydrophobic nature, earth-abundance, and mechanical robustness. However, its poor conductivity, a shallow work function, and nonreflective nature have
Ujwal Kumar Thakur et al.
Nanotechnology, 28(27), 274001-274001 (2017-05-31)
This is the first report of a 17.6% champion efficiency solar cell architecture comprising monocrystalline TiO
Mingzhu Long et al.
Nature communications, 7, 13503-13503 (2016-11-16)
Perovskite solar cells have received worldwide interests due to swiftly improved efficiency but the poor stability of the perovskite component hampers the device fabrication under normal condition. Herein, we develop a reliable nonstoichiometric acid-base reaction route to stable perovskite films
Jingjing He et al.
Nature communications, 11(1), 4237-4237 (2020-08-28)
Surface engineering has been shown critical for the success of perovskite solar cells by passivating the surface enriched defects and mobile species. The discovery of surface modulators with superior interaction strength to perovskite is of paramount importance since they can
Jueming Bing et al.
Small (Weinheim an der Bergstrasse, Germany), 15(9), e1804858-e1804858 (2019-02-02)
This paper provides deep understanding of the formation mechanism of perovskite film fabricated by sequential solution-based methods. It compares two sequential spin-coating methods for Cs0.15 (MA0.7 FA0.3 )0.85 PbI3 perovskite. First is the "static process," with a stoppage between the
Katarzyna Pydzińska-Białek et al.
Physical chemistry chemical physics : PCCP, 22(38), 21947-21960 (2020-09-26)
Improvement in the performance of perovskite solar cells (PSC) and dye-sensitized solar cells (DSSC) upon modifications of mesoporous titania layers has been studied. For PSC with triple cation perovskite (FA0.76 MA0.19 Cs0.05 Pb (I0.81 Br0.19)3) about 40% higher photocurrent (up
Tridip Ranjan Chetia et al.
Physical chemistry chemical physics : PCCP, 18(7), 5344-5357 (2016-01-29)
Mesoporous and hollow zinc oxide (ZnO) hierarchical superstructures assembled with compact 1D building blocks that provide an efficient and faster transport pathway for photo-generated charge carriers have been synthesized using a biomass derived polysaccharide "alginic acid". To understand the interactions
Kai Shen et al.
Advanced materials (Deerfield Beach, Fla.), 32(22), e2000004-e2000004 (2020-04-23)
Flexible devices are garnering substantial interest owing to their potential for wearable and portable applications. Here, flexible and self-powered photodetector arrays based on all-inorganic perovskite quantum dots (QDs) are reported. CsBr/KBr-mediated CsPbBr3 QDs possess improved surface morphology and crystallinity with
Dung-Yue Su et al.
ACS applied materials & interfaces, 11(37), 34212-34221 (2019-08-30)
Thin films of Ag nanowires (NWs) offer many advantages as transparent electrodes for flexible electronics, but their applications are hindered by issues including poor stability/durability of Ag NWs, high processing temperatures, heterogeneity of surfaces, and lack of gas-barrier function. This
Bo-Tau Liu et al.
Nanomaterials (Basel, Switzerland), 10(9) (2020-09-10)
Due to the characteristics of high electron mobility, ambient stability, proper energy level, and low processing temperature, zinc oxide (ZnO) has become a very promising electron transport material for photovoltaics. However, perovskite solar cells fabricated with ZnO reveal low efficiency
Jingqi Liu et al.
Scientific reports, 9(1), 1362-1362 (2019-02-06)
Previously, textile dye sensitised solar cells (DSSCs) woven using photovoltaic (PV) yarns have been demonstrated but there are challenges in their implementation arising from the mechanical forces in the weaving process, evaporation of the liquid electrolyte and partially shaded cells
Yu-il Kang et al.
ChemSusChem, 8(22), 3799-3804 (2015-10-17)
Dye-sensitized solar cells (DSCs) with long-term stability are produced using polymer-gel electrolytes (PGEs). In this study, we introduce the formation of PGEs using in situ gelation with poly(methyl methacrylate) (PMMA) particles and graphene fillers that are pre-deposited on the counter electrodes.
Riski Titian Ginting et al.
ACS applied materials & interfaces, 9(41), 36111-36118 (2017-09-25)
Herein, a novel strategy is presented for enhancing light absorption by incorporating gold nanostars (Au NSs) into both the active layer of organic solar cells (OSCs) and the rear-contact hole transport layer of perovskite solar cells (PSCs). We demonstrate that
Jung-Che Tsai et al.
Chemistry, an Asian journal, 10(9), 1932-1939 (2015-07-15)
Mesoporous cobalt sulfide nanotube arrays on FTO-coated glass were synthesized by combining three simple technologies: the selective etching of ZnO sacrificial templates, mesoporous Co3 O4 formation from cobalt-chelated chitosan, and ion-exchange reaction (IER). The mesoporous Co3 O4 nanotubes composed of
Liang-Huei Chen et al.
Journal of oleo science, 69(6), 539-547 (2020-05-15)
Highly efficient nanocomposite electrolytes were prepared by mixing the montmorillonite (MMT) clay nanofillers and iodide poly(vinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) gel electrolytes for the purpose of measuring the performance of quasi-solid-state dye-sensitized solar cells (QS-DSSCs). The impacts of different amounts of MMT
Ishanie Rangeeka Perera et al.
Physical chemistry chemical physics : PCCP, 16(24), 12021-12028 (2014-01-08)
The abundance and low toxicity of manganese have led us to explore the application of manganese complexes as redox mediators for dye sensitized solar cells (DSCs), a promising solar energy conversion technology which mimics some of the key processes in
Aleksandra Bartkowiak et al.
Materials (Basel, Switzerland), 13(9) (2020-05-06)
Very recently, we have reported the synthesis and evaluation of biological properties of new merocyanine dyes composed of triphenylamine moiety, π-aromatic spacer, and rhodanine/2-thiohydantoin-based moiety. Interestingly, 2-thiohydantoin has never been studied before as an electron-accepting/anchoring group for the dye-sensitized solar
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