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Featured researches published by Taojian Fan.


Small | 2017

Fluorinated Phosphorene: Electrochemical Synthesis, Atomistic Fluorination, and Enhanced Stability

Xian Tang; Weiyuan Liang; Jinlai Zhao; Zhongjun Li; Meng Qiu; Taojian Fan; Crystal Shaojuan Luo; Ye Zhou; Yu Li; Zhinan Guo; Dianyuan Fan; Han Zhang

Phosphorene has attracted great interest due to its unique electronic and optoelectronic properties owing to its tunable direct and moderate band-gap in association with high carrier mobility. However, its intrinsic instability in air seriously hinders its practical applications, and problems of technical complexity and in-process degradation exist in currently proposed stabilization strategies. A facile pathway in obtaining and stabilizing phosphorene through a one-step, ionic liquid-assisted electrochemical exfoliation and synchronous fluorination process is reported in this study. This strategy enables fluorinated phosphorene (FP) to be discovered and large-scale, highly selective few-layer FP (3-6 atomic layers) to be obtained. The synthesized FP is found to exhibit unique morphological and optical characteristics. Possible atomistic fluorination configurations of FP are revealed by core-level binding energy shift calculations in combination with spectroscopic measurements, and the results indicate that electrolyte concentration significantly modulates the fluorination configurations. Furthermore, FP is found to exhibit enhanced air stability thanks to the antioxidation and antihydration effects of the introduced fluorine adatoms, and demonstrate excellent photothermal stability during a week of air exposure. These findings pave the way toward real applications of phosphorene-based nanophotonics.


Journal of Materials Chemistry B | 2018

Black phosphorus analogue tin sulfide nanosheets: synthesis and application as near-infrared photothermal agents and drug delivery platforms for cancer therapy

Zhongjian Xie; Dou Wang; Taojian Fan; Chenyang Xing; Zhongjun Li; Wei Tao; Liping Liu; Shiyun Bao; Dianyuan Fan; Han Zhang

Two-dimensional (2D) inorganic nanomaterials for biomedical applications still face the challenge of simultaneously offering a high photothermal conversion efficiency (PTCE), efficient drug delivery, biocompatibility and biodegradability. Herein, cancer treatment using tin sulfide nanosheet (SnS NS)-based dual therapy nano-platforms (SDTNPs), including photothermal- and chemo-therapy, is demonstrated. SnS, a black phosphorus (BP) analogue binary IV-VI compound, was synthesized using liquid phase exfoliation. SnS NSs comprising 2-4 layers exhibited good biocompatibility and a high PTCE of 39.3%, which is higher than other popular 2D materials. The SnS NSs showed a stable photothermal performance over 2 h of laser irradiation and exhibited ∼14% degradation after 10 h of irradiation. It was also found that SnS NSs show high loading of small molecules such as doxorubicin (DOX) (up to ∼200% in weight). Consequently, the SDTNPs achieved notable tumor therapy through the combination of photothermal- and chemo-therapy both in vitro and in vivo. Our study may pave the way for the biomedical application of SnS and other IV-VI compound-based 2D nanomaterials. Compared with traditional therapies, SnS NS-based laser therapy is green and efficient, due to its biocompatibility, photo-degradability, high efficiency photothermal properties and high drug loading.


Journal of Materials Chemistry C | 2018

Black-phosphorus-analogue tin monosulfide: an emerging optoelectronic two-dimensional material for high-performance photodetection with improved stability under ambient/harsh conditions

Weichun Huang; Zhongjian Xie; Taojian Fan; Jiagen Li; Yunzheng Wang; Leiming Wu; Dingtao Ma; Zhongjun Li; Yanqi Ge; Ziyin N. Huang; Xiaoyu Dai; Yuanjiang Xiang; Jianqing Li; Xi Zhu; Han Zhang

It is widely known that excellent intrinsic electronic and optoelectronic advantages of black phosphorus (BP) make it attractive for applications in transistor, logic and optoelectronic devices. However, easy degradation upon exposure to ambient conditions turns out to be the most critical bottleneck in restricting its practical applications. In order to simultaneously achieve good stability and high device performance, a two-dimensional (2D) size-selected black-phosphorus-analogue (BPA), tin monosulfide nanosheets (SnS Ns), with enhanced chemical stability was successfully fabricated by a facile liquid phase exfoliation (LPE) method, followed by a liquid cascade centrifugation (LCC) technique. Similar to BP, SnS shows thickness modulated bandgap energy. The as-prepared SnS Ns were employed to fabricate working electrodes for photoelectrochemical (PEC)-type broadband photodetection for the first time, and they exhibit an appropriate capacity for a self-powered broadband photoresponse. More importantly, due to the weak polar character of Sn–S bonds, the SnS-based photodetector shows strong long-term temporal and cycling stability of ON/OFF switching behaviour without any external protection not only in regular basic electrolytes but also under strong polar conditions including harsh acidic and neutral electrolytes. We therefore anticipate that SnS as an emerging optoelectronic material might be developed towards versatile applications such as photodetection, sensing and modulation, etc.


Advanced Functional Materials | 2018

Ultrathin 2D Nonlayered Tellurium Nanosheets: Facile Liquid-Phase Exfoliation, Characterization, and Photoresponse with High Performance and Enhanced Stability

Zhongjian Xie; Chenyang Xing; Weichun Huang; Taojian Fan; Zhongjun Li; Jinlai Zhao; Yuanjiang Xiang; Zhinan Guo; Jianqing Li; Zhigang Yang; Biqing Dong; Junle Qu; Dianyuan Fan; Han Zhang


ACS Photonics | 2017

Ultrasmall Bismuth Quantum Dots: Facile Liquid-Phase Exfoliation, Characterization, and Application in High-Performance UV–Vis Photodetector

Chenyang Xing; Weichun Huang; Zhongjian Xie; Jinlai Zhao; Dingtao Ma; Taojian Fan; Weiyuan Liang; Yanqi Ge; Biqin Dong; Jianqing Li; Han Zhang


Advanced Optical Materials | 2017

2D Nonlayered Selenium Nanosheets: Facile Synthesis, Photoluminescence, and Ultrafast Photonics

Chenyang Xing; Zhongjian Xie; Zhiming Liang; Weiyuan Liang; Taojian Fan; Joice Sophia Ponraj; Sathish Chander Dhanabalan; Dianyuan Fan; Han Zhang


arXiv: Materials Science | 2018

Biocompatible Two-dimensional Titanium Nanosheets for Efficient Plasmonic Photothermal Cancer Therapy.

Zhongjian Xie; Shiyou Chen; Quan Liu; Zhitao Lin; Jinlai Zhao; Taojian Fan; Liping Liu; Shiyun Bao; Dianyuan Fan; Han Zhang


Journal of Innovative Optical Health Sciences | 2018

Black Phosphorus: a novel nanoplatform with potential in the field of bio-photonic nanomedicine

Taojian Fan; Yansheng Zhou; Meng Qiu; Han Zhang


Chinese Physics B | 2018

Black phosphorus-based field effect transistor devices for Ag ions detection

Huide Wang; David K. Sang; Zhinan Guo; Rui Cao; Jinlai Zhao; Muhammad Najeeb Ullah Shah; Taojian Fan; Dianyuan Fan; Han Zhang


Advanced Functional Materials | 2018

Nonlayered 2D Materials: Ultrathin 2D Nonlayered Tellurium Nanosheets: Facile Liquid-Phase Exfoliation, Characterization, and Photoresponse with High Performance and Enhanced Stability (Adv. Funct. Mater. 16/2018)

Zhongjian Xie; Chenyang Xing; Weichun Huang; Taojian Fan; Zhongjun Li; Jinlai Zhao; Yuanjiang Xiang; Zhinan Guo; Jianqing Li; Zhigang Yang; Biqing Dong; Junle Qu; Dianyuan Fan; Han Zhang

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Jinlai Zhao

Macau University of Science and Technology

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