Efficient charge separation between ZnIn2S4 nanoparticles and polyaniline nanorods for nitrogen photofixation

2020 ◽  
Vol 44 (18) ◽  
pp. 7350-7356 ◽  
Author(s):  
Shaohua Chen ◽  
Xiaoli Zhao ◽  
Fazhi Xie ◽  
Zhi Tang ◽  
Xiufang Wang
Keyword(s):  
Charge Separation ◽  
Simple Synthesis ◽  
Atmospheric Environment ◽  
Synthesis Process ◽  
Core Shell ◽  
Efficient Charge ◽  
Polyaniline Nanorods

Novel core–shell polyaniline@ZnIn2S4 core–shell heterostructure photocatalysts have been prepared using a simple synthesis process, and they exhibit superior performances of photocatalytic N2 reduction to NH3 in an atmospheric environment.

Carbon quantum dot sensitized integrated Fe2O3@g-C3N4 core–shell nanoarray photoanode towards highly efficient water oxidation

2018 ◽  
Vol 6 (21) ◽  
pp. 9839-9845 ◽  
Author(s):  
Sha-Sha Yi ◽  
Jun-Min Yan ◽  
Qing Jiang
Keyword(s):  
Quantum Dot ◽  
Water Oxidation ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Carbon Quantum Dot ◽  
Efficient Charge ◽  
Oxidation Performance ◽  
Charge Separation Efficiency

The carbon quantum dot (CQD) sensitized integrated Ti:Fe2O3@g-C3N4 core–shell nanoarrays demonstrate superior PEC water oxidation performance which can be ascribed to efficient charge separation efficiency derived from the well-confined heterojunction structure together with the high catalytic activity of the CQDs for H2O2 decomposition.

Hierarchical Z-scheme Fe2O3@ZnIn2S4 core–shell heterostructures with enhanced adsorption capacity enabling significantly improved photocatalytic CO2 reduction

CrystEngComm ◽  
2020 ◽  
Vol 22 (47) ◽  
pp. 8221-8227
Author(s):  
Zihan Zhao ◽  
Chuanxin Shi ◽  
Qi Shen ◽  
Wenjuan Li ◽  
Dandan Men ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Co2 Reduction ◽  
Core Shell ◽  
Adsorption Ability ◽  
Molecule Adsorption ◽  
Efficient Charge ◽  
Charge Separation Efficiency ◽  
Enhanced Adsorption

The challenge of sunlight-driven CO2 reduction is to achieve efficient photocatalysts with exceptional molecule adsorption ability and efficient charge-separation efficiency.

Integration of perovskite type Bi2MoO6 nanosheets onto one dimensional CdS: a type-II heterostructured photocatalytic system for efficient charge separation in the hydrogen evolution reaction

2020 ◽  
Vol 7 (15) ◽  
pp. 2818-2832 ◽  
Author(s):  
Rama Krishna Chava ◽  
Namgyu Son ◽  
Yang Soo Kim ◽  
Misook Kang
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Charge Separation ◽  
Core Shell ◽  
Type Ii ◽  
One Dimensional ◽  
Cds Nanorods ◽  
Photocatalytic System ◽  
Efficient Charge ◽  
Perovskite Type

Bi2MoO6 nanosheets were assembled onto CdS nanorods and the resultant CdS-Bi2MoO6 core–shell heterostructures were utilized for efficient H2 evolution reaction.

scholarly journals Carbon Nanodots as a Potential Transport Layer for Boosting Performance of All-Inorganic Perovskite Nanocrystals-based Photodetector

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 717
Author(s):  
Hassan Algadi ◽  
Ahmad Umar ◽  
Hasan Albargi ◽  
Turki Alsuwian ◽  
Sotirios Baskoutas
Keyword(s):  
Charge Separation ◽  
High Performance ◽  
Band Alignment ◽  
Transport Layer ◽  
Carbon Nanodots ◽  
Separation Mechanism ◽  
Perovskite Layer ◽  
Inorganic Perovskite ◽  
Highly Efficient ◽  
Efficient Charge

A low-cost and simple drop-casting method was used to fabricate a carbon nanodot (C-dot)/all-inorganic perovskite (CsPbBr3) nanosheet bilayer heterojunction photodetector on a SiO2/Si substrate. The C-dot/perovskite bilayer heterojunction photodetector shows a high performance with a responsivity (R) of 1.09 A/W, almost five times higher than that of a CsPbBr3-based photodetector (0.21 A/W). In addition, the hybrid photodetector exhibits a fast response speed of 1.318/1.342 µs and a highly stable photocurrent of 6.97 µA at 10 V bias voltage. These figures of merits are comparable with, or much better than, most reported perovskite heterojunction photodetectors. UV–Vis absorption and photoluminescent spectra measurements reveal that the C-dot/perovskite bilayer heterojunction has a band gap similar to the pure perovskite layer, confirming that the absorption and emission in the bilayer heterojunction is dominated by the top layer of the perovskite. Moreover, the emission intensity of the C-dot/perovskite bilayer heterojunction is less than that of the pure perovskite layer, indicating that a significant number of charges were extracted by the C-dot layer. The studied band alignment of the C-dots and perovskites in the dark and under emission reveals that the photodetector has a highly efficient charge separation mechanism at the C-dot/perovskite interface, where the recombination rate between photogenerated electrons and holes is significantly reduced. This highly efficient charge separation mechanism is the main reason behind the enhanced performance of the C-dot/perovskite bilayer heterojunction photodetector.

scholarly journals Efficient charge separation and visible-light response in bilayer HfS2-based van der Waals heterostructures

RSC Advances ◽  
2018 ◽  
Vol 8 (34) ◽  
pp. 18889-18895 ◽  
Author(s):  
Biao Wang ◽  
Xukai Luo ◽  
Junli Chang ◽  
Xiaorui Chen ◽  
Hongkuan Yuan ◽  
...  
Keyword(s):  
Charge Separation ◽  
Density Functional ◽  
Van Der Waals ◽  
Light Response ◽  
Hybrid Density Functional Theory ◽  
Functional Theory ◽  
Visible Light Response ◽  
Efficient Charge ◽  
Hybrid Density Functional ◽  
Photocatalytic Applications

In this work, we employ hybrid density functional theory to investigate HfS2-based van der Waals (vdW) heterojunctions for highly efficient photovoltaic and photocatalytic applications.

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