Interface engineering of ultrananocrystalline diamond/MoS2-ZnO heterostructures and its highly enhanced hydrogen gas sensing properties

Saravanan, Adhimoorthy; Huang, Bohr–Ran; Chu, Jinn P.; Prasannan, Adhimoorthy; Tsai, Hsieh‐Chih

doi:10.1016/j.snb.2019.04.108

Cited by 56 publications

(25 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then filtered and left over dye concentrations were anticipated at 665 nm and 554 nm (CE Cecil 7200, UK) for MB and RhB, respectively. [29]. It can be observed that more peaks with the increasing percentage of Ni as compared to the pure MoS 2 are appeared.…”

Section: Experimentationmentioning

confidence: 89%

“…Said Ridene has investigated improving results by fabricating MoS 2 and employing in laser emitting gadgets [28]. Adhimoorthy Saravanan et al have composed the MoS 2 nanomaterials for future gas sensor and storage employments [29]. Various metals can be doped into P-type semiconductor molybdenum disulphide (MoS 2 ) to explore the potential for various applications.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method

Khan

Hasan

Bhatti

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

Transition metal dichalcogenides (TMDs) are promising materials for photocatalytic functions. In class of TMDs, MoS 2 is comprehensively explored as a co-catalyst due to the extraordinary activity for photocatalytic activity of organic dye degradation. But the catalytic activities of MoS 2 are generated through S ions on depiction edges. Also numerous of S ions existed on basal planes are catalytically inactive. The insertion of external metals in MoS 2 organism is extensive way for activation of basal planes surface to enhance concentration of catalytically active sites. For this purpose, nanoparticles of Nickel (Ni) doped MoS 2 are prepared by hydrothermal technique. Structural and morphological analysis are characterized by XRD and SEM, respectively. XRD results showed that Ni is completely doped into MoS 2 . SEM showed that pure MoS 2 has sheet like structure and Ni doped MoS 2 has mix disc and flower like structure. Band gap energy was observed in declining range of 2.30-1.76 eV. The photocatalytic activity of pure MoS 2 and Ni doped MoS 2 were evaluated by degrading MB and RhB dyes under UV light irradiation. MB dye degradation of MB was 71% for pure MoS 2 . For 1% to 5% Ni doping in MoS 2 , MB dye degradated from 85% to 96%. It means that MB dye degradation of MB was enhanced continuously by increasing the concentration of Ni doping. RhB dye degradation of RhB was 62% for pure MoS 2 . For 1% to 5% Ni doping in MoS 2 , the RhB dye degradated from 77% to 91%.

show abstract

Section: Experimentationmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method

Khan

Hasan

Bhatti

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Owingt ot hese remarkable features,M DZ is highly advantageous compared with existing ZnO, nanodiamond, and TFMG based H 2 sensors to-date. ZNRs [30] 5.3 --200 ZnO tubes [31] 16.2 --RT ZNRs-Pd [32] 9--RT ZnO-Cr-ITO [33] 25 --RT ZNRs/In [34] 20.5 --RT ZnO-Ni [35] 22.1 --75 ZNRs-CF [36] 2.3 812 280 ZNRs/AC [37] 23.2 18 15 RT ZNRs-MoS 2 [38] 32 15 20 RT ZNT-graphene [9] 28.1 30 38 RT CNT-Pd-Ni [39] 7.5 312 150 RT graphene-Pd [40] 5--RT nanodiamonds [41] 6.2 86RT ZNRs (this study) 10.4 --RT TFMG/UNCD/ZNRs( MDZ) (thisstudy) 49.6 20 35 RT…”

Section: Resultsmentioning

confidence: 99%

High‐Performance Sensor Based on Thin‐Film Metallic Glass/Ultra‐nanocrystalline Diamond/ZnO Nanorod Heterostructures for Detection of Hydrogen Gas at Room Temperature

Huang

Chu

Saravanan

et al. 2019

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

This article outlines an ovel materialt oe nablet he detection of hydrogen gas. The material combines thin-film metallic glass (TFMG), ultra-nanocrystalline diamond( UNCD), and ZnO nanorods (ZNRs) andc an be used as ad evice for effective hydrogen gas sensing. Three sensors were fabricated by using combinations of pure ZNRs( Z), UNCD/ZNRs (DZ), and TFMG/UNCD/ZNRs (MDZ). The MDZd evice exhibited ap erformance superior to the other configurations, with as ensing response of 34 %u nder very low hydrogen gas concentrations (10ppm) at room temperature. Remarkably, the MDZ-based sensore xhibits an ultra-high sensitivity of 60.5 %u nder 500 ppm H 2 .T he MDZs ensor provedv ery fast in terms of response time (20 s) and recovery time (35 s). In terms of selectivity,t he sensors were particularly suited to hydrogeng as. The sensora chieved the same response performance even after two months, thereby demonstrating the superior stability. It is postulated that the superior performance of MDZ can be attributed to defect-related adsorption as well as chargecarrierd ensity.T his paper also discusses the respective energyb and models of these heterostructures and also the interface effect on the gas sensing enhancements. The results indicatet hat the proposed hybrid TFMG/UNCD/ZNRs nanostructures could be utilized as highperformance hydrogen gas sensors. 2À ).

show abstract

“…The configuration of p-BDD and n-metal oxide has been most widely studied. In contrast to a continuous uniform film [ 26 , 27 , 32 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ], the 1D nanostructure (e.g., NRs, NWs and NTs) that is free of defects, quantum-enhanced and has a large surface-area-to-volume ratio will not encounter the thermal mismatch with diamond, thereby substantially improving the performance of the hybrid structural heterojunction. For simplicity, we will focus on three different 1D n-type metal oxide (ZnO, TiO 2 and WO 3 )/p-BDD heterojunction structure types in this review in the following general examples.…”

Section: Diamond-based 1d Metal Oxide Heterojunction Classesmentioning

confidence: 99%

“…When combining 1D metal oxide with p-type diamond, one has to explore the carrier transport behavior of the formed heterojunction devices, which has both theoretical and application importance for designing new photoelectronic devices for extremely harsh environments, such as outer space or nuclear energetics industries. In recent years, p-type BDD has been used in combination with various 1D-structured metal oxides (for instance ZnO [ 22 , 30 , 31 , 32 , 33 ], WO 3 [ 34 , 35 , 36 ] and TiO 2 [ 37 , 38 , 39 , 40 , 41 ]) to form heterojunctions demonstrating effects of rectification and negative differential resistance (NDR), which may be widely used in various technologies. However, no comprehensive discussion focusing specifically on electrical characteristic of diamond-based p-n heterojunctions has been published.…”

Section: Introductionmentioning

confidence: 99%

Review on the Properties of Boron-Doped Diamond and One-Dimensional-Metal-Oxide Based P-N Heterojunction

et al. 2020

View full text Add to dashboard Cite

This review is mainly focused on the optoelectronic properties of diamond-based one-dimensional-metal-oxide heterojunction. First, we briefly introduce the research progress on one-dimensional (1D)-metal-oxide heterojunctions and the features of the p-type boron-doped diamond (BDD) film; then, we discuss the use of three oxide types (ZnO, TiO2 and WO3) in diamond-based-1D-metal-oxide heterojunctions, including fabrication, epitaxial growth, photocatalytic properties, electrical transport behavior and negative differential resistance behavior, especially at higher temperatures. Finally, we discuss the challenges and future trends in this research area. The discussed results of about 10 years’ research on high-performance diamond-based heterojunctions will contribute to the further development of photoelectric nano-devices for high-temperature and high-power applications.

show abstract

Interface engineering of ultrananocrystalline diamond/MoS2-ZnO heterostructures and its highly enhanced hydrogen gas sensing properties

Cited by 56 publications

References 31 publications

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method

High‐Performance Sensor Based on Thin‐Film Metallic Glass/Ultra‐nanocrystalline Diamond/ZnO Nanorod Heterostructures for Detection of Hydrogen Gas at Room Temperature

Review on the Properties of Boron-Doped Diamond and One-Dimensional-Metal-Oxide Based P-N Heterojunction

Contact Info

Product

Resources

About

Interface engineering of ultrananocrystalline diamond/MoS2-ZnO heterostructures and its highly enhanced hydrogen gas sensing properties

Cited by 56 publications

References 31 publications

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS2, prepared by Hydrothermal method

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS2, prepared by Hydrothermal method

High‐Performance Sensor Based on Thin‐Film Metallic Glass/Ultra‐nanocrystalline Diamond/ZnO Nanorod Heterostructures for Detection of Hydrogen Gas at Room Temperature

Review on the Properties of Boron-Doped Diamond and One-Dimensional-Metal-Oxide Based P-N Heterojunction

Contact Info

Product

Resources

About

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method

Effect of Ni doping on the structural, optical and photocatalytic activity of MoS₂, prepared by Hydrothermal method