Journal Article10.1002/ADMA.202001082
Graphdiyne-Based Flexible Photodetectors with High Responsivity and Detectivity
Ye Zhang,Pu Huang,Jia Guo,Rongchao Shi,Weichun Huang,Weichun Huang,Zhe Shi,Leiming Wu,Feng Zhang,Lingfeng Gao,Chao Li,Xiuwen Zhang,Jialiang Xu,Han Zhang +13 more
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TL;DR: Density functional theory (DFT) calculations are adopted to explore the electronic characteristics ofGDY, which provides evidence for the performance enhancement of GDY in alkaline electrolyte and pave the way for the exploration of GDy heterojunction-based photodetection.
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Abstract: Graphdiyne (GDY), a newly emerging 2D carbon allotrope, has been widely explored in various fields owing to its outstanding electronic properties such as the intrinsic bandgap and high carrier mobility. Herein, GDY-based photoelectrochemical-type photodetection is realized by spin-coating ultrathin GDY nanosheets onto flexible poly(ethylene terephthalate) (PET) substrates. The GDY-based photodetectors (PDs) demonstrate excellent photo-responsive behaviors with high photocurrent (Pph , 5.98 µA cm- 2 ), photoresponsivity (Rph , 1086.96 µA W- 1 ), detectivity (7.31 × 1010 Jones), and excellent long-term stability (more than 1 month). More importantly, the PDs maintain an excellent Pph after 1000 cycles of bending (4.45 µA cm- 2 ) and twisting (3.85 µA cm- 2 ), thanks to the great flexibility of the GDY structure that is compatible with the flexible PET substrate. Density functional theory (DFT) calculations are adopted to explore the electronic characteristics of GDY, which provides evidence for the performance enhancement of GDY in alkaline electrolyte. In this way, the GDY-based flexible PDs can enrich the fundamental study of GDY and pave the way for the exploration of GDY heterojunction-based photodetection.
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Citations
2D graphdiyne: an emerging carbon material
TL;DR: As a new member of carbon allotropes, graphdiyne (GDY) has the characteristics of being one-atom-thick with two-dimensional layers comprising sp and sp2 hybridized carbon atoms and represents a trend in the development of carbon materials as mentioned in this paper .
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•Journal Article
Black Phosphorus Field-effect Transistors
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TL;DR: In this paper, a few-layer black phosphorus crystals with thickness down to a few nanometres are used to construct field effect transistors for nanoelectronic devices. But the performance of these materials is limited.
181
Pt/AlGaN Nanoarchitecture: Toward High Responsivity, Self-Powered Ultraviolet-Sensitive Photodetection
Danhao Wang,Xin Liu,Shi Fang,Chen Huang,Yang Kang,Huabin Yu,Zhongling Liu,Haochen Zhang,Ran Long,Yujie Xiong,Yangjian Lin,Yang Yue,Binghui Ge,Tien Khee Ng,Boon S. Ooi,Zetian Mi,Jr-Hau He,Haiding Sun +17 more
TL;DR: This work constructs, for the first time, solar-blind PEC PDs based on self-assembled AlGaN nanostructures on silicon, demonstrating strikingly high responsivity of 45 mA/W and record fast response/recovery time of 47/20 ms without external power source.
166
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Fabrication Technologies for the On‐Chip Integration of 2D Materials
TL;DR: In this paper , the state-of-the-art fabrication techniques for the on-chip integration of 2D materials are reviewed, which are categorized into material synthesis, onchip transfer, film patterning and property tuning/modification.
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Highly efficient electron transport obtained by doping PCBM with graphdiyne in planar-heterojunction perovskite solar cells.
Chaoyang Kuang,Gang Tang,Gang Tang,Tonggang Jiu,Hui Yang,Huibiao Liu,Bairu Li,Luo Weining,Xiaodong Li,Wenjun Zhang,Fushen Lu,Junfeng Fang,Yuliang Li +12 more
TL;DR: Graphdiyne (GD), a novel two dimension carbon material, is doped into PCBM layer of perovskite solar cell with an inverted structure to improve the electron transport and bring the high PCE of the devices and the data repeatability.
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