Highly Dense ZnO Nanowires Grown on Graphene Foam for Ultraviolet Photodetection

Boruah, Buddha Deka; Mukherjee, Anwesha; Sridhar, Supriya; Misra, Abha

doi:10.1021/acsami.5b02403

Cited by 94 publications

(64 citation statements)

References 37 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A significant response current varying from several seconds to minutes. [29][30][31][32][33] Therefore, the H:VZnO NFs device presents an excellent UV sensitive self-powered faster photodetection speed.…”

Section: Resultsmentioning

confidence: 99%

Energy-Efficient Hydrogenated Zinc Oxide Nanoflakes for High-Performance Self-Powered Ultraviolet Photodetector

Boruah

Misra

2016

ACS Appl. Mater. Interfaces

Self Cite

112

View full text Add to dashboard Cite

Light absorption efficiency and doping induced charge carrier density play a vital role in self-powered optoelectronic devices. Unique vanadium-doped zinc oxide nanoflake array (VZnO NFs) is fabricated for self-powered ultraviolet (UV) photodetection. The light harvesting efficiency drastically improved from 84% in ZnO NRs to 98% in VZnO NFs. Moreover, the hydrogenation of as-synthesized VZnO (H:VZnO) NFs displayed an outstanding increase in response current as compared to pristine structures. The H:VZnO NFs device presents an extraordinary photoelastic behavior with faster photodetection speed in the order of ms under a low UV illumination signal. Excellent responsivity and external quantum efficiency with larger value of specific detectivity of H:VZnO NFs device promises an outstanding sensitivity for UV signal and self-powered high-performance visible-blind photodetector.

show abstract

Section: Resultsmentioning

confidence: 99%

Energy-Efficient Hydrogenated Zinc Oxide Nanoflakes for High-Performance Self-Powered Ultraviolet Photodetector

Boruah

Misra

2016

ACS Appl. Mater. Interfaces

Self Cite

112

View full text Add to dashboard Cite

show abstract

“…Consequently, the PD2 exhibited an outstanding performance among Cu NS/ZnO QD hybrid architecture photodetectors under an identical condition, and an excellent reproducibility and stability was also witnessed with the photodetectors within 50 cycles and 7 d as shown in Figure S12 (Supporting Information). Meanwhile, many efforts have been endeavored to boost the performance of ZnO photodetectors [33][34][35][52][53][54][55][56][57][58][59][60][61] as summarized in Table 5, and obviously, the performance of the PD2 was predominantly superior to the ZnO photodetectors. Specifically, various nanocomposites were adapted to ZnO NSs based UV photodetectors: ZnO NWs/ graphene foams can guarantee a high I on of ≈1 mA, [57] and ZnS/ZnO heterostructures exhibited a relatively high R of 94.5 A W −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, many efforts have been endeavored to boost the performance of ZnO photodetectors [33][34][35][52][53][54][55][56][57][58][59][60][61] as summarized in Table 5, and obviously, the performance of the PD2 was predominantly superior to the ZnO photodetectors. Specifically, various nanocomposites were adapted to ZnO NSs based UV photodetectors: ZnO NWs/ graphene foams can guarantee a high I on of ≈1 mA, [57] and ZnS/ZnO heterostructures exhibited a relatively high R of 94.5 A W −1 . [60] However, under 365 nm UV light illumination of 0.62 mW cm −2 , the R can reach 234 A W −1 with a relatively higher I on of ≈2.26 mA than all those devices, suggesting that the Cu NS/ZnO QD hybrid architectures can pave a path for the fabrication of excellent performance UV photodetectors via a facile approach.…”

Section: Resultsmentioning

confidence: 99%

Ultrahigh Responsivity UV Photodetector Based on Cu Nanostructure/ZnO QD Hybrid Architectures

et al. 2019

Small

View full text Add to dashboard Cite

Strong near‐surface electromagnetic field formed by collective oscillation of electrons on Cu nanostructure a shows a strong dependence on geometry, offering a promising approach to boost the light absorption of ZnO photoactive layers with enhanced plasmon scattering. Here, a facile way to fabricate UV photodetectors with tunable configuration of the self‐assembled Cu nanostructures on ZnO thin films is reported. The incident lights are effectively confined in ZnO photoactive layers with the existence of the uplayer Cu nanostructures, and the interdiffusion of Cu atoms during fabrication of the Cu nanostructures can improve the carrier transfer in ZnO thin films. The optical properties of the hybrid architectures are successfully tailored over a control of the geometric evolution of the Cu nanostructures, resulting in significantly enhanced photocurrent and responsivity of 2.26 mA and 234 A W−1 under a UV light illumination of 0.62 mW cm−2 at 10 V, respectively. The photodetectors also exhibit excellent reproducibility, stability, and UV–visible rejection ratio (R370 nm/R500 nm) of ≈370, offering an approach of high‐performance UV photodetectors for practical applications.

show abstract

“…Boruah et al used the thermal evaporation technique for the growth of highly dense ZnO nanowires on 3D graphene foam, which has potential application as ultraviolet photodetector [275]. ZnO–graphene hybrids have been largely used for glucose sensing [276], hydrazine sensors [277], in antibacterial applications [278], in electrical and optical devices [279], as multifunctional conductors [280], for photocurrent generation [256], in solar cells [239,281–282], and for UV illumination [283].…”

Section: Reviewmentioning

confidence: 99%

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

Jana¹,

Scheer²,

Polarz³

2017

Beilstein J. Nanotechnol.

102

View full text Add to dashboard Cite

Single layer graphite, known as graphene, is an important material because of its unique two-dimensional structure, high conductivity, excellent electron mobility and high surface area. To explore the more prospective properties of graphene, graphene hybrids have been synthesised, where graphene has been integrated with other important nanoparticles (NPs). These graphene–NP hybrid structures are particularly interesting because after hybridisation they not only display the individual properties of graphene and the NPs, but also they exhibit further synergistic properties. Reduced graphene oxide (rGO), a graphene-like material, can be easily prepared by reduction of graphene oxide (GO) and therefore offers the possibility to fabricate a large variety of graphene–transition metal oxide (TMO) NP hybrids. These hybrid materials are promising alternatives to reduce the drawbacks of using only TMO NPs in various applications, such as anode materials in lithium ion batteries (LIBs), sensors, photocatalysts, removal of organic pollutants, etc. Recent studies have shown that a single graphene sheet (GS) has extraordinary electronic transport properties. One possible route to connecting those properties for application in electronics would be to prepare graphene-wrapped TMO NPs. In this critical review, we discuss the development of graphene–TMO hybrids with the detailed account of their synthesis. In addition, attention is given to the wide range of applications. This review covers the details of graphene–TMO hybrid materials and ends with a summary where an outlook on future perspectives to improve the properties of the hybrid materials in view of applications are outlined.

show abstract

Highly Dense ZnO Nanowires Grown on Graphene Foam for Ultraviolet Photodetection

Cited by 94 publications

References 37 publications

Energy-Efficient Hydrogenated Zinc Oxide Nanoflakes for High-Performance Self-Powered Ultraviolet Photodetector

Energy-Efficient Hydrogenated Zinc Oxide Nanoflakes for High-Performance Self-Powered Ultraviolet Photodetector

Ultrahigh Responsivity UV Photodetector Based on Cu Nanostructure/ZnO QD Hybrid Architectures

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

Contact Info

Product

Resources

About