Sulfur-Doped Black Phosphorus Field-Effect Transistors with Enhanced Stability

Lv, Weiming; Yang, Bingchao; Wang, Bochong; Wan, Wenhui; Ge, Yanfeng; Yang, Ruilong; Hao, Chunxue; Xiang, Jianyong; Zhang, Baoshun; Zeng, Zhongming; Liu, Zhongyuan

doi:10.1021/acsami.7b19169

Cited by 98 publications

(83 citation statements)

References 47 publications

(76 reference statements)

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“…As such, an intensive search for alternative 2D materials is currently in progress. The most interesting options among them are 2D counterparts of conventional materials, such as silicene and phosphorene . The narrow bandgaps of these materials are between the zero bandgap of graphene and the larger bandgap of TMDs (i.e., 1.8 eV for monolayer MoS 2 and 2.0 eV for WSe 2 ), which makes them attractive due to their (theoretically) higher carriers mobility.…”

Section: Effect Of the Dielectric Environmentmentioning

confidence: 99%

Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects

Illarionov

Yalon

et al. 2019

Adv Funct Materials

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The continuous miniaturization of field effect transistors (FETs) dictated by Moore's law has enabled continuous enhancement of their performance during the last four decades, allowing the fabrication of more powerful electronic products (e.g., computers and phones). However, as the size of FETs currently approaches interatomic distances, a general performance stagnation is expected, and new strategies to continue the performance enhancement trend are being thoroughly investigated. Among them, the use of 2D semiconducting materials as channels in FETs has raised a lot of interest in both academia and industry. However, after 15 years of intense research on 2D materials, there remain important limitations preventing their integration in solid-state microelectronic devices. In this work, the main methods developed to fabricate FETs with 2D semiconducting channels are presented, and their scalability and compatibility with the requirements imposed by the semiconductor industry are discussed. The key factors that determine the performance of FETs with 2D semiconducting channels are carefully analyzed, and some recommendations to engineer them are proposed. This report presents a pathway for the integration of 2D semiconducting materials in FETs, and therefore, it may become a useful guide for materials scientists and engineers working in this field.

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Section: Effect Of the Dielectric Environmentmentioning

confidence: 99%

Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects

Illarionov

Yalon

et al. 2019

Adv Funct Materials

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“…Next, non-metallic doping will be discussed in detail. Non-metallic elements and some oxides/nitrides have been introduced as dopants [54,52,55,61,62]. The transfer curves of transistors with 0.5 and 10 nm of cesium carbonate (Cs 2 CO 3 ) compared to the pristine BP are displayed in Fig.…”

Section: Functionalization and Dopingmentioning

confidence: 99%

Black phosphorus electronics

et al. 2019

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“…Chemical modification is based on the chemical bond between the passivated molecules and nano‐BP. Apart from the achievement of highly stable nano‐BP, chemical modification is of particularly beneficial in manipulating the optical and electronic properties of nano‐BP . Inspired by the formation of PC bond between BP and graphite via high‐energy mechanical milling, the aryl diazonium chemistry was reported as an acceptable covalent modification strategy toward nano‐BP .…”

Section: Nano‐bp Functionalizationmentioning

confidence: 99%

Recent Advances on Black Phosphorus for Biomedicine and Biosensing

Xia

Guo

2019

Adv Funct Materials

201

125

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Black phosphorus nanostructures (nano-BPs) include BP nanosheets, BP quantum dots, and BP nanoparticles. Since first being discovered in 2014, nano-BP has become one of the most popular nanomaterials. Nano-BP has many unique properties, such as excellent surface activity, tunable bandgap, high carrier mobility, moderate on/off ratio, excellent biocompatibility, good biodegradation, etc., all of which make nano-BP particularly attractive in biomedicine and biosensing. This review article comprehensively summarizes recent advances in synthesis, functionalization, biomedicine, and biosensing applications of nano-BP. Different methods are first introduced, such as mechanical cleavage, liquid-phase ultrasonic exfoliation, electrochemical exfoliation, solvothermal treatment, and acoustic-microfluidic stripping, for making the nano-BP. Then two strategies are emphasized to enhance ambient stability of nano-BP, namely physical encapsulation and chemical modification. Next, how to develop nano-BP as advanced imaging agents, nanocarriers, and nanomedicine for bioimaging (fluorescence imaging, thermal imaging, and photoacoustic imaging) and disease treatment (phototherapy and photo/chemical/immune synergistic therapy) is demonstrated. The biosensing applications on nano-BP is introduced, including electrochemical biosensor, fluorescence biosensor, chemiluminescence biosensor, electrogenerated chemiluminescence biosensor, and colorimetric biosensor. Finally, the current challenges and future perspectives on nano-BP in bioapplications are discussed. Nano-BP SynthesisLayered nanomaterials are usually exfoliated from bulk crystals. [35] Compared with bulk materials, monolayer or fewlayer nanomaterials possess the enhanced surface area, excellent physiochemical activity and optoelectronic property. The exfoliation from bulk crystal to monolayer or few-layer nanosheets has been widely applied for preparing almost all the 2D nanomaterials, graphene, MoS 2 , MXene nanosheets, etc. [36] Bulk BP, similar to graphite, is the stacking of layered BP nanosheets via the weak van der Waals force. The destruction of the external driving forces to the weak van der Waals interaction between the stack layers greatly contributes to the exfoliation of nano-BP from the bulk counterparts. Mechanical exfoliation and liquid phase ultrasonic exfoliation are the two most popular approaches, and some other methods were also involved, electrochemical exfoliation and solvothermal treatment, for instance. Table 1 summarizes the advantages and limitations of different exfoliation methods. Mechanical ExfoliationMechanical exfoliation, also called scotch-tape delamination, mainly utilizes the larger binding energy between the substrate and layered materials than van der Waals forces in Figure 2. a) Schematic illustration of meta-assisted mechanical exfoliation for FLBP. b) The left is FLBPs exfoliated using the normal scotch-tape microcleavage, and the right is FLBP exfoliated using Au-assisted method, and c) the total area of FLBP on 10 different samples. ...

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Sulfur-Doped Black Phosphorus Field-Effect Transistors with Enhanced Stability

Cited by 98 publications

References 47 publications

Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects

Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects

Black phosphorus electronics

Recent Advances on Black Phosphorus for Biomedicine and Biosensing

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