Showing papers in "ACS energy letters in 2020"
TL;DR: In this article, a new class of high-performance non-fullerene acceptors (NFAs) have been proposed for organic solar cells (OSCs), which have entered a new phase of research featuring high power conversion efficiencies.
Abstract: With the recent emergence of a new class of high-performance nonfullerene acceptors (NFAs), organic solar cells (OSCs) have entered a new phase of research featuring high power conversion efficienc...
436 citations
TL;DR: In this paper, a self-assembled monolayer (SAM) 2PACz was used as a hole-selective interlayer functionalized directly onto the indium tin oxid.
Abstract: We report on bulk-heterojunction (BHJ) organic photovoltaics (OPVs) based on the self-assembled monolayer (SAM) 2PACz as a hole-selective interlayer functionalized directly onto the indium tin oxid
367 citations
TL;DR: Zn metal has been considered as a promising anode material for rechargeable aqueous metal-ion batteries as mentioned in this paper, however, the propensity of dendrite growth during plating restricts its practical applicatio...
Abstract: Zn metal has been considered as a promising anode material for rechargeable aqueous metal-ion batteries. However, the propensity of dendrite growth during plating restricts its practical applicatio...
351 citations
TL;DR: In this article, the development of green, sustainable, and economical chemical processes represents a cornerstone challenge within chemistry today, which is the goal of our work as well as many others.
Abstract: The development of green, sustainable, and economical chemical processes represents a cornerstone challenge within chemistry today. Semiconductor heterogeneous photocatalysis is currently utilized ...
336 citations
TL;DR: The conversion of carbon dioxide (CO2) into fuels and value-added products is one of the most significant inventions to address the global warming and energy needs as mentioned in this paper, and the conversion of CO2 into fuel and value added products is a major contribution to address global warming.
Abstract: The conversion of carbon dioxide (CO2) into fuels and value-added products is one of the most significant inventions to address the global warming and energy needs. Photoelectrochemical (PEC) CO2 c...
294 citations
TL;DR: In this article, solid-state electrolytes (SSEs) are considered as an enabler to inhibit dendrite growth of lithium-metal anodes for high-energy and highly safe next-generation batteries.
Abstract: Solid-state electrolytes (SSEs) are widely considered as an “enabler” to inhibit dendrite growth of lithium-metal anodes for high-energy and highly safe next-generation batteries. However, recent s...
270 citations
TL;DR: In this article, the authors highlight recent progress and challenges related to the integration of lithium metal anodes in solid-state batteries, and highlight the challenges of integrating anodes with solid electrolytes.
Abstract: In this Perspective, we highlight recent progress and challenges related to the integration of lithium metal anodes in solid-state batteries. While prior reports have suggested that solid electroly...
264 citations
TL;DR: It has been widely acknowledged that most of the electrocatalysts would undergo a structural reconstruction during the water splitting as well as carbon dioxide (CO2) reduction reactions as discussed by the authors.
Abstract: It has been widely acknowledged that most of the electrocatalysts would undergo a structural reconstruction during the water splitting as well as carbon dioxide (CO2) reduction reactions. Recently ...
260 citations
TL;DR: In this article, the prospective strategies for overcoming the stability and capacity trade-off associated with increased Ni content in layered Ni-rich Li[NixCoyMnz]O2 (NCM) and Li [NIXCoy...
Abstract: This Perspective discusses the prospective strategies for overcoming the stability and capacity trade-off associated with increased Ni content in layered Ni-rich Li[NixCoyMnz]O2 (NCM) and Li[NixCoy...
251 citations
TL;DR: In this paper, single-atom Cu catalysts were dispersed on nitrogen-doped carbon by a nitrogen-coordination strategy, and the presence of nitrogen enabled good dispersion and attachment of atomic Cu species on carbon.
Abstract: We report single-atom Cu catalysts dispersed on nitrogen-doped carbon by a nitrogen-coordination strategy. The presence of nitrogen enabled good dispersion and attachment of atomic Cu species on th...
251 citations
TL;DR: In this article, neutral Diquat (DQ) was used as n-dopant to improve the operating characteristics of organic photovoltaics (OPVs).
Abstract: Molecular doping has recently been shown to improve the operating characteristics of organic photovoltaics (OPVs). Here, we prepare neutral Diquat (DQ) and use it as n-dopant to improve the perform...
TL;DR: In this article, the minimization of interfacial nonradiative recombination (NRR) losses through interface engineering especially for perovovision devices is discussed. But this work is restricted to the perovision case.
Abstract: Because interfacial nonradiative recombination (NRR) has a significant influence on device performance, the minimization of interfacial NRR losses through interface engineering especially for perov...
TL;DR: The development of new battery technologies requires to be well established in the same era of lithium ion batteries (LIBs), a well commercialized technology, and the merits should surpass over other technologies as discussed by the authors.
Abstract: The development of new battery technologies requires to be well established in the same era of lithium ion batteries (LIBs), a well commercialized technology, and the merits should surpass over oth...
TL;DR: The metal-organic frameworks (MOFs) have emerged as desirable cross-functional platforms for electrochemical and photochemical energy conversion and storage (ECS) systems owing to their highly ordered ordering.
Abstract: Metal–organic frameworks (MOFs) have emerged as desirable cross-functional platforms for electrochemical and photochemical energy conversion and storage (ECS) systems owing to their highly ordered ...
TL;DR: Zn-based electrochemistry has recently been considered as the most promising family to challenge the dominant status of Li-based battery technologies as discussed by the authors, and it has more abundant reserves than Li-battery technologies.
Abstract: Zn-based electrochemistry has recently been considered as the most promising family to challenge the dominant status of Li-based battery technologies. Besides its more abundant reserves, the modera...
TL;DR: In this article, all-solid-state Li-ion batteries (ASSBs), considered to be potential next-generation energy storage devices, require solid electrolytes (SEs).
Abstract: All-solid-state Li-ion batteries (ASSBs), considered to be potential next-generation energy storage devices, require solid electrolytes (SEs). Thiophosphate-based materials are popular, but these s...
TL;DR: In this article, a solar-thermal water evaporation (SWE) has received much interest in recent years due to a few seminal works on materials innovation and thermal management.
Abstract: Solar–thermal water evaporation (SWE) has received much interest in recent years due to a few seminal works on materials innovation and thermal management. With many studies proposing applications ...
TL;DR: Tin oxide (SnO2) has recently emerged as a promising electron transport layer for perovskite solar cells (PSCs) in light of the material's optical and electronic properties and its low-temperature as mentioned in this paper.
Abstract: Tin oxide (SnO2) has recently emerged as a promising electron transport layer for perovskite solar cells (PSCs) in light of the material’s optical and electronic properties and its low-temperature ...
TL;DR: In this article, the authors proposed a method to improve the energy output of batteries at sub-zero temperatures, which can generally be accomplished by emplacement of the battery in the battery charger.
Abstract: Improving the energy output of batteries at sub-zero temperatures is crucial to the long-term application of advanced electronics in extreme environments. This can generally be accomplished by empl...
TL;DR: In this article, the authors show that incorporating a third component with lower miscibility and higher lowest unoccupied molecular orbital (LUMO) level into the state-of-the-art PM6:Y6 system can significantly enhance the performance of devices.
Abstract: It is widely known that the miscibility between donor and acceptor is a crucial factor that affects the morphology and thus device performance of nonfullerene organic solar cells (OSCs). In this Letter, we show that incorporating a third component with lower miscibility and higher lowest unoccupied molecular orbital (LUMO) level into the state-of-the-art PM6:Y6 system can significantly enhance the performance of devices. The best results of the ternary devices are achieved by adding a small molecular acceptor named ITCPTC (similar to 5% w/w), which significantly improves the power conversion efficiency (PCE) of the host system from 16.44% to 17.42%. The higher LUMO of the third component increases the open-circuit voltage (V-oc), while the low miscibility enlarges the domains and leads to improved short-circuit current density (J(sc)) and fill factor (FF). The efficacy of this strategy is supported by using other nonfullerene third components including an asymmetric small molecule (N7IT) and a polymer acceptor (PF2-DTC), which play the same role as ITCPTC and boost the PCEs to 16.96% and 17.04%, respectively. Our approach can be potentially applied to a wide range of OSC material systems and should facilitate the development of the OSC field.
TL;DR: In this paper, the authors show that carbon nanomaterials show potential in achieving good potassium ion storage; however, the limited interlayer spacing in existing carbon nanOMaterials greatly impacts the performance of potassium ion ion storage.
Abstract: Carbon nanomaterials show potential in achieving good potassium ion storage; however, the limited interlayer spacing in existing carbon nanomaterials greatly impacts the performance of potassium io...
TL;DR: In this paper, the halide ratio of mixed halide (Br/Cl) perovskites (MHPs) was adjusted to obtain a blue-emitting perovskiy.
Abstract: Blue-emitting perovskites can be easily attained by precisely tuning the halide ratio of mixed halide (Br/Cl) perovskites (MHPs). However, the adjustable halide ratio hinders the passivation of Cl ...
TL;DR: In this article, a three-dimensional nanoporous Cu-Ru alloy is prepared as a high-level alloy for hydrogen production from electrochemical water splitting, which is a promising route to pursue clean and sustainable energy sources.
Abstract: Hydrogen production from electrochemical water splitting is a promising route to pursue clean and sustainable energy sources. Here, a three-dimensional nanoporous Cu–Ru alloy is prepared as a high-...
TL;DR: This Viewpoint will clarify what defines, in the opinion, a halide perovskite and discuss the commonly misnamed nonperovskites crystal structures.
Abstract: Over the last two decades, halide perovskites (HPs) have been identified as one of the most promising materials in photovoltaic and light-emitting devices. This has led to major breakthroughs in materials science but has also brought about a general misunderstanding and misuse of the term “perovskite”. In this Viewpoint, we will address the definition of a perovskite, with a main focus on the subgroup of perovskites that consist of heavier halides (Cl, Br, and I), both fully inorganic and hybrid organic−inorganic ones, as well as the many variants that can be found within this subgroup. In doing so, we will clarify what defines, in our opinion, a halide perovskite and discuss the commonly misnamed nonperovskite crystal structures. A perovskite crystal lattice is defined as a network of cornersharing BX6 octahedra that crystallize with a general ABX3 (or equivalent) stoichiometry, as is shown in Figures 1 and 2a.
TL;DR: A water-in-salt electrolyte (WiSE) offers an electrochemical stability window much wider than typical aqueous electrolytes but still falls short in accommodating high-energy anode materials as discussed by the authors.
Abstract: A water-in-salt electrolyte (WiSE) offers an electrochemical stability window much wider than typical aqueous electrolytes but still falls short in accommodating high-energy anode materials, mainly...
TL;DR: The metal halide perovskite semiconductors have sprung to the forefront of research into optoelectronic devices and materials, largely because of their remarkable photovoltaic efficiency records as discussed by the authors.
Abstract: Metal halide perovskite semiconductors have sprung to the forefront of research into optoelectronic devices and materials, largely because of their remarkable photovoltaic efficiency records above ...
TL;DR: More than 200 research articles have been published on this topic, reporting the enhancement in the stabilized power of the perovskite solar cells (PSCs) as mentioned in this paper, reporting the improvement in the stabilization of the power.
Abstract: Since the first report of all-inorganic perovskite solar cells (PSCs) in 2014, more than 200 research articles have been published on this topic, reporting the enhancement in the stabilized power c...
TL;DR: In this paper, the perovskite structure of CSPbI3 nanocrystals with narrow size distributions was studied and the size-dependent properties of the nanostructures were investigated.
Abstract: CsPbI3 nanocrystals with narrow size distributions were prepared to study the size-dependent properties. The nanocrystals adopt the perovskite (over the nonperovskite orthorhombic) structure with i...
TL;DR: While halide perovskite allows a great versatility, the application on single absorber solar cells restrings significantly the number of available materials as mentioned in this paper. In this context, CsPbI3 and FA,...
Abstract: While halide perovskite allows a great versatility, the application on single absorber solar cells restrings significantly the number of available materials. In this context, CsPbI3 and FAPbI3 (FA,...