An infrared perfect absorber based on metal-dielectric-metal multi-layer films with nanocircle holes arrays

Wu, Pinghui; Chen, Zeqiang; Jile, Huge; Zhang, Congfen; Xu, Danyang; Lv, Li

doi:10.1016/j.rinp.2020.102952

Cited by 44 publications

(17 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Transition metal chalcogenides have been extensively studied in catalysts, solid lubricants, batteries, optoelectronic devices, hydrogen production materials, wave absorption, and sensors [26][27][28][29][30][31][32][33][34][35]. As a typical transition metal sulfide, the hexagonal MoS 2 has a layered structure similar to graphite, and there are strong bonds between atoms in the layer.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Jile

Chen

et al. 2020

Micromachines

Self Cite

View full text Add to dashboard Cite

In this paper, ZnO@MoS2 core-shell heterojunction arrays were successfully prepared by the two-step hydrothermal method, and the growth mechanism was systematically studied. We found that the growth process of molybdenum disulfide (MoS2) was sensitively dependent on the reaction temperature and time. Through an X-ray diffractometry (XRD) component test, we determined that we prepared a 2H phase MoS2 with a direct bandgap semiconductor of 1.2 eV. Then, the photoelectric properties of the samples were studied on the electrochemical workstation. The results show that the ZnO@MoS2 heterojunction acts as a photoanode, and the photocurrent reaches 2.566 mA under the conditions of 1000 W/m2 sunshine and 0.6 V bias. The i-t curve also illustrates the perfect cycle stability. Under the condition of illumination and external bias, the electrons flow to the conduction band of MoS2 and flow out through the external electrode of MoS2. The holes migrate from the MoS2 to the zinc oxide (ZnO) valence band. It is transferred to the external circuit through the glass with fluorine-doped tin oxide (FTO) together with the holes on the ZnO valence band. The ZnO@MoS2 nanocomposite heterostructure provides a reference for the development of ultra-high-speed photoelectric switching devices, photodetector(PD) devices, and photoelectrocatalytic technologies.

show abstract

Section: Introductionmentioning

confidence: 99%

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Jile

Chen

et al. 2020

Micromachines

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results reflect that the nanorods prepared by the hydrothermal method have good crystallinity and purity. The diffraction peaks of ZnO correspond to (100), (002), (101), (102), (110), (103) and (004) crystal orientation, respectively [55][56][57]. Among them, the diffraction peaks of WO 3 correspond to the crystal orientations of (100), (110), (102) and (120) at 18.88°, 24.47°, 30.48° and 38.37°, respectively [58,59].…”

Section: Xrdmentioning

confidence: 99%

Adjusting the Energy Bands of WO₃@ZnO Nanocomposite Heterojunction Through the Combination of WO₃ Thin Film to Improve its Photoelectric Performance

Cao

et al. 2020

IEEE Access

Self Cite

View full text Add to dashboard Cite

At present, nanomaterials with high-quality photoelectric properties are urgently needed to be used in the manufacture of solar cells. In this study, the hydrothermal synthesis method was first used to grow ZnO nanorod arrays, and then a layer of WO 3 thin film with controllable thickness was prepared on ZnO nanorod arrays by magnetron sputtering, forming a series of WO 3 @ZnO nanocomposite heterojunction. We found that the value of the photocurrent of the prepared nanocomposite samples is nearly 30 times higher than WO 3 films under illumination, and it is more stable. The results show that this controllable microstructure can further modify the surface properties of ZnO nanorods, and possess the high visible absorption and photoelectric conversion efficiency. By controlling the thickness of the WO 3 film, the band can be regulated and ultimately optimized the photoelectrochemical properties of the composite structure. INDEX TERMS: WO 3 @ZnO nano-heterostructures; hydrothermal method; magnetron sputtering; photoelectric; band regulation Recently, there have been extensive studies on the photoelectric performance of WO 3 , which have a bearing on solar energy utilization and photocatalytic. In recent years, the appearance of nano-structured tungsten oxide materials has a great impact on the research in the above fields. At present, many forms of WO 3 materials have been prepared, such as nanoparticles, nanotubes, nanosheets, nanorods and nanowires, etc [21-26]. There are many methods for preparing WO 3 thin films, including electrochemical deposition, magnetron sputtering, sol-gel, hydrothermal synthesis, and the like [27,28]. However, the photoelectric performance of the various shapes of pure WO 3 is still limited. According to the analysis reports, compositing other materials is a valid method for electronhole pair separation. If the semiconductor materials are combined with other semiconductors to constitute a special

show abstract

“…As important energy collection devices, solar energy absorbers have attracted more and more attention in recent years [1][2][3]. For an ideal absorber, it is necessary to have a high light absorption and many other characteristics, such as polarization-dependence [4] and tunability [5]. However, problems arise as associated with limitations in low-temperature tolerance, low light absorption efficiency, and materials [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Tunable Broadband Solar Energy Absorber Based on Monolayer Transition Metal Dichalcogenides Materials Using Au Nanocubes

et al. 2020

Self Cite

View full text Add to dashboard Cite

In order to significantly enhance the absorption capability of solar energy absorbers in the visible wavelength region, a novel monolayer molybdenum disulfide (MoS2)-based nanostructure was proposed. Local surface plasmon resonances (LSPRs) supported by Au nanocubes (NCs) can improve the absorption of monolayer MoS2. A theoretical simulation by a finite-difference time-domain method (FDTD) shows that the absorptions of proposed MoS2-based absorbers are above 94.0% and 99.7% at the resonant wavelengths of 422 and 545 nm, respectively. In addition, the optical properties of the proposed nanostructure can be tuned by the geometric parameters of the periodic Au nanocubes array, distributed Bragg mirror (DBR) and polarization angle of the incident light, which are of great pragmatic significance for improving the absorption efficiency and selectivity of monolayer MoS2. The absorber is also able to withstand a wide range of incident angles, showing polarization-independence. Similar design ideas can also be implemented to other transition-metal dichalcogenides (TMDCs) to strengthen the interaction between light and MoS2. This nanostructure is relatively simple to implement and has a potentially important application value in the development of high-efficiency solar energy absorbers and other optoelectronic devices.

show abstract

An infrared perfect absorber based on metal-dielectric-metal multi-layer films with nanocircle holes arrays

Cited by 44 publications

References 37 publications

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Adjusting the Energy Bands of WO₃@ZnO Nanocomposite Heterojunction Through the Combination of WO₃ Thin Film to Improve its Photoelectric Performance

Tunable Broadband Solar Energy Absorber Based on Monolayer Transition Metal Dichalcogenides Materials Using Au Nanocubes

Contact Info

Product

Resources

About

An infrared perfect absorber based on metal-dielectric-metal multi-layer films with nanocircle holes arrays

Cited by 44 publications

References 37 publications

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Fabrication of ZnO@MoS2 Nanocomposite Heterojunction Arrays and Their Photoelectric Properties

Adjusting the Energy Bands of WO3@ZnO Nanocomposite Heterojunction Through the Combination of WO3 Thin Film to Improve its Photoelectric Performance

Tunable Broadband Solar Energy Absorber Based on Monolayer Transition Metal Dichalcogenides Materials Using Au Nanocubes

Contact Info

Product

Resources

About

Adjusting the Energy Bands of WO₃@ZnO Nanocomposite Heterojunction Through the Combination of WO₃ Thin Film to Improve its Photoelectric Performance