In recent years, metal compound-based heterojunctions have received increasing attention from researchers as a candidate anode for lithium/sodium-ion batteries, because heterojunction anodes possess unique interfaces, robust architectures, and synergistic effects, thus promoting Li/Na ions storage and accelerating ions/electrons transport.
This is more challenging to accomplish than the one- and two-electron reactions that produce lithium superoxide (LiO 2) and lithium peroxide (Li 2 O 2), respectively. A stable cathode with a sufficient supply of electrons and Li cations to form Li 2 O must be developed to achieve a four-electron reaction for a lithium–oxygen battery.
The built-in field of a heterojunction (Supplementary Figs. 1 and 2 and Supplementary Table 1) can accelerate the charge carriers and has been explored in photocatalysts, photodetection, photovoltaics, and light-emitting diodes 40, 41, 42, 43, 44.
In the current energy conversion systems, aqueous rechargeable batteries (Zn 2+, Mg 2+, and Al 3+) are plausible alternatives to the lithium-ion battery. Because these devices are based on the safe, low cost, and environment-friendly water-based electrolytes and earth-abundant anodes , , , , , , .
Ultimately, a stable Schottky contact is formed at thermal equilibrium, which generates a strong BIEF at the interfaces, accelerating the transfer of K + /Na + during the charging/discharging process, resulting in a high-rate capability. On the other hand, rectified metal-semiconductor contacts can also be formed on p-type semiconductors.
Meanwhile, synthesis routes, characterization and calculation methods, as well as electrochemical performances of heterostructures are roundly reviewed. Furthermore, prospects and potential directions of heterojunctions are proposed, aiming to guide the future energy storage.
27.09%-efficiency silicon heterojunction back contact solar
In this study, we produced highly efficient heterojunction back contact solar cells with a certified efficiency of 27.09% using a laser patterning technique. Our findings indicate that...
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Vacancies and interfaces engineering of core–shell …
Oxygen vacancies dominated porous NiCoP/NiO core–shell heterojunction interface with highly lattice matching, numerous reaction sites and unique interfacial electronic structure as highly active and stable electrocatalysts for OER, HER and ORR to achieve high-performance driven water splitting and rechargeable Zn-air batteries.
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A "battery" like Z-scheme heterojunction ...
An Z-scheme heterojunction photocatalyst with superior hydrogen production performance was successfully prepared. Ni 3-pom in the photocatalyst behaves like a "battery", which can obtain electrons from electron sacrificial agents, store the electrons transiently and transfer the electrons to aminated CdS quantum dots for hydrogen production ...
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Highly stable aqueous rechargeable Zn-ion battery: The synergistic ...
As cathode in the aqueous Zn ion battery, NaV 6 O 15 in the NaV 6 O 15 /V 2 O 5 can endow the battery with high rate performance and cycle stability, and heterojunction …
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Highly Efficient and Stable Potassium-Doped g-C
2 · The remarkable photocatalytic activity is primarily ascribed to the formation of a type-II heterojunction between K-CN and ZCS QDs, which enhances charge separation and transfer. …
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5 Heterostructure Anodes for Lithium/Sodium-Ion Storage
In recent years, metal compound-based heterojunctions have received increasing attention from researchers as a candidate anode for lithium/sodium-ion batteries, …
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Interface engineering Ni/Ni12P5@CNx Mott-Schottky heterojunction …
Due to the poor bifunctional electrocatalytic performances of electrocatalysts in zinc-air battery, herein, we first synthesized Ni/Ni 12 P 5 @CN x Mott-Schottky heterojunction to ameliorate the high-cost and instability of precious metals. We modulated the different contents of Ni and Ni 12 P 5 in the Ni/Ni 12 P 5 @CN x Mott-Schottky heterojunction, and found that 0.6 …
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5 Heterostructure Anodes for Lithium/Sodium-Ion Storage
In recent years, metal compound-based heterojunctions have received increasing attention from researchers as a candidate anode for lithium/sodium-ion batteries, because heterojunction anodes possess unique interfaces, robust architectures, and synergistic effects, thus promoting Li/Na ions storage and accelerating ions/electrons transport ...
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Recent Advances on Heterojunction‐Type Anode Materials for …
Herein, this review presents the recent research progress of heterojunction-type anode materials, focusing on the application of various types of heterojunctions in lithium/sodium-ion batteries. Finally, the heterojunctions introduced in this review are summarized, and their future development is anticipated.
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Highly active nanostructured CoS2/CoS heterojunction …
The polysulfide/iodide flow battery with the graphene felt-CoS2/CoS heterojunction can deliver a high energy efficiency of 84.5% at a current density of 10 mA …
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Highly Efficient and Stable Potassium-Doped g-C
2 · The remarkable photocatalytic activity is primarily ascribed to the formation of a type-II heterojunction between K-CN and ZCS QDs, which enhances charge separation and transfer. This research represents a significant step forward in the design of heterojunction photocatalysts by merging QDs with g-C 3 N 4, offering a highly effective and durable solution for …
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Co/CoO heterojunction rich in oxygen vacancies introduced by O
Abstract Herein, Co/CoO heterojunction nanoparticles (NPs) rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes coupled with nitrogen-doped carbon nanotub... Skip to Article Content; Skip to Article Information; Search within. Search term. Advanced Search Citation Search. Search term. Advanced Search …
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A flower‐like VO2(B)/V2CTx heterojunction as high kinetic …
The VO@VC composite exhibits a three-dimensional (3D) conductive network and the built-in electric field at the heterojunction interface for ions/electrons, which can provide sufficient spaces to suffer volume expansion and form excellent sodium transmission pathways between electrodes/electrolytes, further enhancing the electrochemical ...
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NiSe2/Ni(OH)2 Heterojunction Composite through Epitaxial
The heterojunction composite and Ni(OH)2 (performing high electrochemical activity) is ideal high-rate battery-type supercapacitor electrode. The NiSe2/Ni(OH)2 electrode exhibits a high specific capacity of 909 C g−1 at 1 A g−1 and 597 C g−1 at 20 A g−1. The assembled asymmetric supercapacitor composed of the NiSe2/Ni(OH)2 cathode and p …
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Sichuan Shuoyang Heterojunction New Energy Co., Ltd Draft for ...
The annual production of 10GW high-efficiency heterojunction (HDT) battery cells project (Phase I) by Sichuan Shuoyang Heterojunction New Energy Co., Ltd. in Leshan High tech Zone complies with national industrial policies, and there are no obvious environmental constraints around the site, which is in line with relevant plans. The project adopts advanced …
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A flower‐like VO2(B)/V2CTx heterojunction as high kinetic …
The VO@VC composite exhibits a three-dimensional (3D) conductive network and the built-in electric field at the heterojunction interface for ions/electrons, which can …
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Achieving a smooth "adsorption-diffusion-conversion" of …
The effect of this heterojunction on the conversion kinetics of Li-S batteries was initially validated through various rate tests from 0.2C to 2C. As shown in Fig. 6 a, the battery based on MnO 2-ZnS separator displays a high initial capacity of 1247 mAh g −1 at 0.2C.
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Recent Advances on Heterojunction‐Type Anode Materials for …
Herein, this review presents the recent research progress of heterojunction-type anode materials, focusing on the application of various types of heterojunctions in …
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Z-Scheme g-C3N4/TiO2 heterojunction for a high energy density …
Under illumination, the battery can be rechargeable for over 1000 hours at 0.05 mA cm −2 with a small polarization gap. The photocathode delivers an ultra-high discharge capacity of 29.7 mA h cm −2 at 0.5 mA cm −2, resulting in a specific energy of approximately 515.12 W h kg −1cell.
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Highly stable aqueous rechargeable Zn-ion battery: The …
As cathode in the aqueous Zn ion battery, NaV 6 O 15 in the NaV 6 O 15 /V 2 O 5 can endow the battery with high rate performance and cycle stability, and heterojunction structure can provide vacancy for Zn 2+ storage and transport.
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A "battery" like Z-scheme heterojunction ...
An Z-scheme heterojunction photocatalyst with superior hydrogen production performance was successfully prepared. Ni 3-pom in the photocatalyst behaves like a "battery", which can obtain electrons from electron sacrificial agents, store the electrons transiently and transfer the electrons to aminated CdS quantum dots for hydrogen production.
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Design strategies of ZnO heterojunction arrays …
Hassan et al. prepared three-dimensional (3D) hierarchical ZnO/ZnS heterojunction branching nanostructures on silicon substrates by MOCVD. 112 The enhancement of light absorption benefited from the …
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Vacancies and interfaces engineering of core–shell …
Oxygen vacancies dominated porous NiCoP/NiO core–shell heterojunction interface with highly lattice matching, numerous reaction sites and unique interfacial electronic …
Learn More
A "battery" like Z-scheme heterojunction ...
An Z-scheme heterojunction photocatalyst with superior hydrogen production performance was successfully prepared. Ni 3-pom in the photocatalyst behaves like a …
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METHOD OF FABRICATING HETEROJUNCTION BATTERY
With reference to FIGS. 1 and 2, the known basic fabricating procedure of a heterojunction battery is as follows: 1) first using a process similar to a crystal silicon battery to fabricate a textured structure at a surface of a wafer, so as to obtain light trapping effect; 2) using PECVD to deposit a 5 nm-10 nm-thick intrinsic a-Si:H and p-type a-Si:H layer on the front of …
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Z-Scheme g-C3N4/TiO2 heterojunction for a high energy density …
Under illumination, the battery can be rechargeable for over 1000 hours at 0.05 mA cm −2 with a small polarization gap. The photocathode delivers an ultra-high discharge …
Learn More
Highly active nanostructured CoS2/CoS heterojunction …
The polysulfide/iodide flow battery with the graphene felt-CoS2/CoS heterojunction can deliver a high energy efficiency of 84.5% at a current density of 10 mA cm−2, a power density of 86.2 mW...
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