Enhancement of photoresponsive electrical characteristics of multilayer MoS2 transistors using rubrene patches

Cho, Eun Hei; Song, Won Geun; Park, Cheol Joon; Kim, Jeongyong; Kim, Sunkook; Joo, Jinsoo

doi:10.1007/s12274-014-0561-5

Cited by 27 publications

(22 citation statements)

References 36 publications

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“…In the second type of hybrid device, the sensitizers that are employed to enhance light absorbance or to extend the detection range are normally quantum dots (QDs), organic molecules, and CH 3 NH 3 PbI 3 perovskite . For example, Kufer et al reported a hybrid photodetector composed of bilayer MoS 2 covered with 1,2‐ethanedithiol ligands and (EDT)‐capped colloidal PbS QDs .…”

Section: Photoconductors/phototransistors Based On 2d Layered Semiconmentioning

confidence: 99%

Photodetectors Based on Two‐Dimensional Layered Materials Beyond Graphene

Xie

Mak

Tao

et al. 2016

Adv Funct Materials

590

547

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1 of 41) 1603886However, despite its high absorption coefficient, [15] single-layer graphene can absorb only ≈2.3% of incident visible and infrared (IR) light due to its thinness, [16,17] which is undesirable for high performance photodetectors that require strong light absorption. Graphene's gaplessness also leads to short photocarrier lifetime in pure graphene, which is unfavorable for efficient photocurrent generation. [18][19][20] In addition to graphene, this family of materials contains an extremely large range of other 2D-layered materials that have recently attracted much research interest. [1][2][3][4][5][6][7][8] Similar to graphene, being atomically thin, these materials exhibit a wide range of unique electrical, optical, thermal, and mechanical properties that can never be seen in their three-dimensional (3D) bulk counterparts due to the dimensionality confinement effect and modulation in their band structures. [21,22] These 2D-layered materials can be metals, semiconductors, insulators, superconductors, topological insulators, or paramagnetic, diamagnetic, ferromagnetic, or anti-ferromagnetic, etc., depending on their composition and phases. [23,24] Among these materials, particular attention has been paid to 2D layered semiconductors thanks to their unique electronic [2,[24][25][26] and optoelectronic properties, [27,28] which arise from their appreciable bandgaps ranging from IR to UV and throughout the visible range.The optical and optoelectronic properties of 2D layered semiconductors are strongly dependent on their number of layers due to the quantum confinement effects in the out-of-plane direction and changes in symmetry. [29,30] This layer-dependent modulation of physical properties, such as bandgap structure, is particularly evident in the semiconducting transition metal dichalcogenides (TMDs) [2,7,29,31,32] and few-layer black phosphorus (BP). [33,34] Another effect induced by vertical quantum confinement is the increased absorption efficiency, which results from the strongly bound excitons due to the reduced thickness. [29,35,36] The atomic thickness of a 2D layered semiconductor also leads to high transparency [37] and good mechanical flexibility, [38] properties of particular interest for novel device applications such as flexible, wearable, or portable electronics. Despite their high transparency, 2D layered semiconductors can strongly interact with incident light, leading to enhanced photon absorption and electron-hole creation due to the existence of Van Hove singularities in their electronic density of states. [39] It has also been reported that 2D layered materials possess extraordinary elastic modulus and large strain (>10%) before rupture, [40][41][42][43] which allow for tuning their electronic and optical properties Following a significant number of graphene studies, other two-dimensional (2D) layered materials have attracted more and more interest for their unique structures and distinct physical properties, which has opened a window for realizing novel electronic or optoelectr...

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Section: Photoconductors/phototransistors Based On 2d Layered Semiconmentioning

confidence: 99%

Photodetectors Based on Two‐Dimensional Layered Materials Beyond Graphene

Xie

Mak

Tao

et al. 2016

Adv Funct Materials

590

547

View full text Add to dashboard Cite

show abstract

“…The low on/off current ratio of graphene, which is a result of its semimetallic nature, makes it unsuitable for FET applications. Therefore, many researchers have been interested in layered semiconducting materials such as TMDCs for hybridization with organic molecules . Kang et al demonstrated an ultrahigh‐performance MoS 2 –CH 3 NH 3 PbI 3 phototransistor with record photoresponsivity (Figure f) .…”

Section: Electronic and Optoelectronic Applicationsmentioning

confidence: 99%

2D–Organic Hybrid Heterostructures for Optoelectronic Applications

et al. 2019

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The unique properties of hybrid heterostructures have motivated the integration of two or more different types of nanomaterials into a single optoelectronic device structure. Despite the promising features of organic semiconductors, such as their acceptable optoelectronic properties, availability of low-cost processes for their fabrication, and flexibility, further optimization of both material properties and device performances remains to be achieved. With the emergence of atomically thin 2D materials, they have been integrated with conventional organic semiconductors to form multidimensional heterostructures that overcome the present limitations and provide further opportunities in the field of optoelectronics. Herein, a comprehensive review of emerging 2D-organic heterostructures-from their synthesis and fabrication to their state-of-the-art optoelectronic applications-is presented. Future challenges and opportunities associated with these heterostructures are highlighted.solution-processed on any substrate inexpensively and at relatively low temperatures, which is highly advantageous for their scale-up from fundamental studies to industrial-level production. [6][7][8][9][10] Initial examples of developed organic semiconductors include field-effect transistors (FETs), [4,5,[11][12][13][14][15] photodetectors (PDs), [5,16,17] photovoltaics (PVs), [5,16,18,19] light-emitting diodes (LEDs), [5,16,20] and so on. In spite of the demonstration of promising prototypes of organic semiconductors, their development and optimization for highperformance device applications remain a challenge. In particular, it is becoming increasingly difficult to impart suitable properties to individual materials and realize appropriate physical dimensions in order to satisfy increasing demands of multifunctionality for fundamental studies, device designs, and performance optimization. [21,22] Consequently, such challenges and opportunities can be addressed by performing multidimensional integration or hybridization of organic semiconductors with various types of materials having potentially novel functionalities and unique properties.2D van der Waals (vdW) materials are the most obvious candidate for such hybridization with organic semiconductors. [22,23] Since the discovery of graphene, which opened up new avenues ranging from fundamental studies to real-world applications, [24][25][26][27] several other groups of 2D vdW materials have also been discovered, such as hexagonal boron nitride (h-BN), [28,29] transition metal dichalcogenides (TMDCs), [23,[30][31][32][33][34] black phosphorus (BP), [35][36][37][38][39][40] borophene, [41][42][43] silicene, [43] and germanene. [43] The 2D structure has been demonstrated to possess several exceptional electrical, optical, mechanical, and thermal properties vis-à-vis its corresponding bulk counterpart. [22,25,27] Most importantly, from the viewpoint of hybridization with organic semiconductors, the atomically flat and dangling-bond-free surface of 2D vdW materials not only provides an ideal int...

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“…[22,38,42] , 容易得到大面积的样品, 但不容易得到高良、性能更稳定的器件 [43,44] , 但目前有机-无机异质结器件中这种器件类型的报道还比较少. 国际上绝大部分研究组已报道的相关工作都是基于背栅的场效应晶体管(FET)结构 [6,8,11,13,23,45] . 最近的一些研究表明, 有机无机异质结在未来的器件应用上具有优异的潜力 [6,12,17,25,41,47,48] .…”

Section: 这类材料具有没有块体分隔的两个表面因此拥有unclassified

Interfacial optoelectronic process in organic-inorganic van der Waals hetero-structure

Qin

Zhang

et al. 2018

Chin. Sci. Bull.

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Enhancement of photoresponsive electrical characteristics of multilayer MoS2 transistors using rubrene patches

Cited by 27 publications

References 36 publications

Photodetectors Based on Two‐Dimensional Layered Materials Beyond Graphene

Photodetectors Based on Two‐Dimensional Layered Materials Beyond Graphene

2D–Organic Hybrid Heterostructures for Optoelectronic Applications

Interfacial optoelectronic process in organic-inorganic van der Waals hetero-structure

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