Solution‐Processed 2D Niobium Diselenide Nanosheets as Efficient Hole‐Transport Layers in Organic Solar Cells

Gu, Xing; Cui, Wei; Song, Tao; Liu, Changhai; Shi, Xiaoze; Wang, Sui‐Dong; Sun, Baoquan

doi:10.1002/cssc.201300615

Cited by 39 publications

(44 citation statements)

References 35 publications

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“…More recently, they prepared TiO 2 /WS 2 /P3HT solar cells by the same method and showed an improved J sc and PCE of 7.1 mA cm À2 and 2.6%, respectively. 260 A maximum PCE of 8.1% was achieved in OPVs with PTB7:PCBM as the active layer and NbSe 2 as the HTL. 11.…”

Section: Other 2d Materials In Opvsmentioning

confidence: 93%

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Functionalized graphene and other two-dimensional materials for photovoltaic devices: device design and processing

2015

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Graphene is the thinnest two-dimensional (2D) carbon material and has many advantages including high carrier mobilities and conductivity, high optical transparency, excellent mechanical flexibility and chemical stability, which make graphene an ideal material for various optoelectronic devices. The major applications of graphene in photovoltaic devices are for transparent electrodes and charge transport layers. Several other 2D materials have also shown advantages in charge transport and light absorption over traditional semiconductor materials used in photovoltaic devices. Great achievements in the applications of 2D materials in photovoltaic devices have been reported, yet numerous challenges still remain. For practical applications, the device performance should be further improved by optimizing the 2D material synthesis, film transfer, surface functionalization and chemical/physical doping processes. In this review, we will focus on the recent advances in the applications of graphene and other 2D materials in various photovoltaic devices, including organic solar cells, Schottky junction solar cells, dye-sensitized solar cells, quantum dot-sensitized solar cells, other inorganic solar cells, and perovskite solar cells, in terms of the functionalization techniques of the materials, the device design and the device performance. Finally, conclusions and an outlook for the future development of this field will be addressed.

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Section: Other 2d Materials In Opvsmentioning

confidence: 93%

“…255 The device with a structure of ITO/TiO 2 /MoS 2 :P3HT/Au exhibited a J sc and PCE of 4.7 mA cm À2 and 1.3%, respectively. 260 NbSe 2 was found to be an ideal candidate material for HTLs in OPVs and its surface dipoles were favorable for charge extraction in OPVs. 256 Some TMDs, including MoS 2 , 35 Fig.…”

Section: Other 2d Materials In Opvsmentioning

confidence: 99%

Functionalized graphene and other two-dimensional materials for photovoltaic devices: device design and processing

2015

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“…An improved performance compared with evaporated-MoO 3 (e-MoO 3 ) based devices was obtained [29,30]. We ascribed the improved efficiencies mainly to the proper energy levels and less-trapped anode buffer layer film, where the traps states were mainly located at the edge of nanoplates.…”

Section: Introductionmentioning

confidence: 89%

Layered bismuth selenide utilized as hole transporting layer for highly stable organic photovoltaics

Yuan

Bai

et al. 2015

Organic Electronics

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“…2D Hole Transport Layer : Since solar cell performances strongly depend on the interface between the light‐harvesting layer and the electrode, latest studies on 2D–organic hybrid PVs were focused extensively on utilizing 2D materials as the electron/hole transport layer . In a conventional OPV structure, a hole transport layer is usually deposited on ITO substrates, which is relatively easier to do than to deposit an electron transport layer on organic active materials.…”

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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Solution‐Processed 2D Niobium Diselenide Nanosheets as Efficient Hole‐Transport Layers in Organic Solar Cells

Cited by 39 publications

References 35 publications

Functionalized graphene and other two-dimensional materials for photovoltaic devices: device design and processing

Functionalized graphene and other two-dimensional materials for photovoltaic devices: device design and processing

Layered bismuth selenide utilized as hole transporting layer for highly stable organic photovoltaics

2D–Organic Hybrid Heterostructures for Optoelectronic Applications

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