Article
Physics, Applied
Xin Liao, Chang Xu, Zi-Pu Fan, Ying-Ying Lan, Na Li, Chun-Guang Chu, An-Qi Wang, Dong Sun, Zhi-Min Liao
Summary: The combination of 2D Dirac semimetal graphene and 3D counterpart Cd3As2 in Dirac heterostructures can overcome the weak optical absorption in graphene-based devices and the dark current in pure Cd3As2 photodetectors, leading to high-performance photodetectors with broadband detection, high sensitivity, and rapid response.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Xiangping Pan, Yanhua Dong, Ming Jia, Jianxiang Wen, Caiyun Su, Yana Shang, Xiaobei Zhang, Fufei Pang, Tingyun Wang
Summary: Lead sulfide (PbS) quantum dots were deposited on silica substrates by atomic layer deposition (ALD) to control their size. The size-controlled PbS QDs showed changes in growth orientation as the size of nanocrystals increased, with enhanced near-infrared luminescence and increased photoluminescence lifetime. The temperature-induced characteristics of the ALD-fabricated PbS QD films were also studied through annealing, showing different growth behaviors at different temperatures.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Hongwei Xu, Hee Sung Han, Jae Seok Hur, Min Jae Kim, Cheol Hee Choi, Taikyu Kim, Joon-Hyuk Chang, Jae Kyeong Jeong
Summary: Broadband phototransistors based on amorphous oxide semiconductors (AOSs) have gained attention due to their high mobility, low off-state current, low-cost fabrication, and large-area scalability. This study incorporated lead sulfide quantum dots (PbS QDs) into an AOS transistor using a spin-coating process to enable photo-responsivity for visible to near-infrared light. The transistor's operation voltage was reduced through the use of indium gallium oxide (IGO) and hafnium oxide (HfO2) films as the semiconducting channel and gate insulator, respectively. The fabricated PbS QD/IGO phototransistors with an HfO2 gate insulator exhibited remarkable switching properties, high carrier mobility, low subthreshold gate swing, and high I-ON/OFF ratio.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Optics
Liming Wang, Bo Wang, Yichi Zhang, Lingyao Meng, Hao Sun, Tao Liu, Ningning Zhang, Zuimin Jiang, Huiyong Hu
Summary: A broadband, high-performance infrared Ge photodetector decorated with Au nanoparticles shows significantly increased responsivity compared to one without Au nanoparticles, attributed to type-II energy-band alignment enhancing electron-hole separation and suppressing recombination. This approach demonstrates potential for achieving broadband, high-performance Ge photodetectors in the near-infrared communication band.
Article
Engineering, Electrical & Electronic
Yilin Sun, Zhifang Liu, Yingtao Ding, Zhiming Chen
Summary: The study introduces a novel metallic 2D material MXene and PbS quantum dots as electrodes and photoactive layers for flexible photodetectors, achieving high detectivity and stability through a simple, cost-effective, and large-scale fabrication technique.
IEEE ELECTRON DEVICE LETTERS
(2021)
Review
Nanoscience & Nanotechnology
Chenxi Zhang, Congyu Zhang, Yiwei Li, Yaran Shi, Jiale Chao, Yifan Zhao, He Yang, Bo Fu
Summary: This article reviews the integration and applications of nanomaterials in wavelength-tunable broadband ultrafast photonics, and discusses the development of nanomaterials and broadband tunable lasers.
Article
Chemistry, Physical
Luji Li, Gaojie Zhang, Hao Wu, Li Yang, Pengfei Gao, Shanfei Zhang, Xiaokun Wen, Wenfeng Zhang, Haixin Chang
Summary: Weyl semimetal WTe2/MoS2 van der Waals heterojunctions, with the incorporation of MoS2, demonstrate stable photoresponse from visible light to near-infrared, showing tunable photocurrent and faster response compared to pristine MoS2. This study highlights the great potential of WTe2 and other topological semimetals in photodetectors.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Optics
G. L. Whitworth, M. Dalmases, N. Taghipour, G. Konstantatos
Summary: Researchers have successfully achieved a solution-processed infrared laser that operates at room temperature using colloidal quantum dots, with tunable wavelength and low linewidth. These lasers have advantages such as high integration capability and low cost, making them suitable for various applications.
Article
Optics
Yu Lin, Xingliang Zhang, Qian Xin, Yongmin Zhao, Aimin Song, Zhongming Zeng, Fan Yang, Chunping Jiang
Summary: Metalenses incorporating electrochromic materials allow for control of focused visible light intensity with an external voltage, while maintaining stable focal length and spot size. These compact electrical-controlled metalenses offer a large modulation depth and low power consumption, enabling miniaturization and integration of optical components and systems.
Article
Chemistry, Multidisciplinary
Mutan Luo, Run Chen, Zhaowei Zhu, Chuantong Cheng, Xin Ning, Beiju Huang
Summary: A high-efficiency photodetector using colloidal PbS quantum dots and single-layer graphene was prepared and characterized. The photodetector exhibited outstanding properties, with high responsivities and detectivities under visible and near-infrared light. The device also demonstrated superior performance in terms of response time. These results suggest that the photodetector has potential for real-world applications.
Article
Nanoscience & Nanotechnology
Anindita Sahoo, Peter Reiss, Etienne Quesnel, Berangere Hyot
Summary: A new technique has been developed to achieve high resolution and fast graphene/lead sulfide quantum dot hybrid infrared photodetectors, with a response time as low as 5 microseconds and high responsivity of 144 A W-1, surpassing existing commercial room temperature infrared photodetectors.
Review
Physics, Applied
Pinki Yadav, Sheetal Dewan, Rahul Mishra, Samaresh Das
Summary: This review article provides a comprehensive overview of the current state of the art in SWIR PDs based on layered materials. It discusses various photodetection schemes, evaluation metrics and device structures. The article gives a detailed analysis of the commonly used 2D materials for designing SWIR PDs, with a focus on their important characteristics and photodetection range. It also highlights the major challenges in the field and discusses the promising future prospects and applications of 2D SWIR PDs.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Anton Yu. Bykov, Yuanyang Xie, Alexey V. Krasavin, Anatoly V. Zayats
Summary: In this study, the optically driven acoustic modes and nonlinear response of multilayered spherical plasmonic hetero-nanoparticles were investigated. These nanoparticles, composed of alternating layers of gold and silica, exhibited a broadband nonlinear optical response from visible to near-infrared wavelengths. Additionally, they served as a tunable optomechanical system with mechanically decoupled layers, allowing for selective switching of different acoustic modes by tuning the excitation wavelength. These findings not only enhance our understanding of the internal structure of composite plasmonic nanoparticles but also provide an additional degree of freedom for controlling their nonlinear optical and mechanical properties.
Article
Materials Science, Multidisciplinary
Thi Uyen Tran, Duc Anh Nguyen, Ngoc Thanh Duong, Dae Young Park, Duc Hieu Nguyen, Phuong Huyen Nguyen, Chulho Park, Juchan Lee, Byung Wook Ahn, Hyunsik Im, Seong Chu Lim, Mun Seok Jeong
Summary: This study demonstrates efficient photodetection from visible to near-infrared (NIR) ranges using a ReS2/Te van der Waals (vdWs) heterostructure. By adjusting the back-gate voltage, the operating mechanism can switch between the photogating effect and photoconductive effect, leading to remarkable responsivities and ultrahigh photoconductive gain. These findings indicate that the ReS2/Te vdWs heterostructure is suitable for high-performance broadband photodetectors in practical applications.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Multidisciplinary
Mao Li, Meng Shi, Bin Wang, Chenchen Zhang, Shuai Yang, Yudong Yang, Na Zhou, Xin Guo, Dapeng Chen, Shaojuan Li, Haiyang Mao, Jijun Xiong
Summary: A fast and efficient method has been developed to fabricate a broadband absorber for solar energy harvesting, showing high absorption efficiency and potential for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Honge Wu, Ming Fang, Guang Tao Fei, Ze Min Hu, Li De Zhang
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Nanoscience & Nanotechnology
Honge Wu, Guang Tao Fei, Xiao Li Ma, Ze Min Hu, Xu Dong Gao, Yong Shuai Wei, Junxi Zhang, Li De Zhang
NANOSCALE RESEARCH LETTERS
(2019)
Article
Nanoscience & Nanotechnology
Xu Dong Gao, Shu Li Liu, Guang Tao Fei, Li De Zhang, Dan Dan Men, Yao Zhang, Shao Hui Xu, Xin Hua Li
Article
Materials Science, Multidisciplinary
Yong Shuai Wei, Shao Hui Xu, Li Gang Yuan, Biao Wang, Shu Li Liu, Guang Tao Fei
MATERIALS RESEARCH EXPRESS
(2020)
Article
Chemistry, Physical
Shao Hui Xu, Jian Yong Huang, Guang Tao Fei, Yong Shuai Wei, Li Gang Yuan, Biao Wang, Xu Dong Gao
Summary: In this study, a double-layer two wavelength infrared antireflective coating was prepared using a sol-gel method, which effectively addressed the issue of thick infrared film not being resistant to high temperature annealing. The coating exhibited super hydrophilicity and excellent thermal shock resistance, making it suitable for high temperature irradiation environments.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Nanoscience & Nanotechnology
Honge Wu, Guang Tao Fei, Jiangang Gao, Jianyong Huang, Li De Zhang
Summary: In this study, a single-phase phosphor with excellent luminescent properties and thermal stability was successfully prepared, which has the potential for application in warm-white lighting.
ACS APPLIED NANO MATERIALS
(2022)
Article
Physics, Applied
Dongran Wang, Kai Xia, Haibin Tang, Zhulin Huang, Yao Zhang, Xiujuan Wang, Guangtao Fei, Guowen Meng
Summary: In this study, nonmetal plasmonic WO3-x nanosheets were used as the sensing material for photodetectors, showing sensitive response for the regulation of conductance through plasmonic hot free charge carriers. The results demonstrate the great potential of nonmetal plasmonic materials for photodetection.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Guoliang Shang, Dongxue Bi, Vladimir Semenovich Gorelik, Guangtao Fei, Lide Zhang
Summary: This review summarizes the related theories, application-oriented structure tailoring, optical properties, and selected applications of anodic alumina photonic crystal. Anodic alumina photonic crystal is a porous periodic dielectric structure that has been extensively studied due to its straightforward preparation processes, porous features, high chemical, and thermal stability. The porous feature of the photonic crystal allows for versatile tailoring of its optical properties and results in strong light scattering.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yafei Yan, Minxin Li, Kai Xia, Kemeng Yang, Dun Wu, Liang Li, Guangtao Fei, Wei Gan
Summary: Researchers fabricated a van der Waals heterostructure (vdWH) photodetector composed of rhenium disulfide (ReS2) and tellurium (Te), which exhibited a sensitive and broadband photoresponse with high on/off ratios. The photodetector achieved high responsivity and specific detectivity, as well as a fast photoresponse speed. Additionally, it showed a photovoltaic effect and could be used as a self-powered photodetector (SPPD).
Article
Chemistry, Multidisciplinary
Yafei Yan, Kai Xia, Wei Gan, Kemeng Yang, Gang Li, Xi Tang, Liang Li, Changjin Zhang, Guang Tao Fei, Hui Li
Summary: Hydrothermally synthesized 2D tellurium nanoflakes can be used for high-performance short-wave infrared photodetectors with high responsivity, fast rise and decay time, and high specific detectivity and external quantum efficiency.
Article
Chemistry, Multidisciplinary
Junxi Zhang, Huaping Zhao, Ming Gong, Lide Zhang, Zhijun Yan, Kang Xie, Guangtao Fei, Xiaoguang Zhu, Mingguang Kong, Shuyuan Zhang, Lin Zhang, Yong Lei
Summary: The nonuniformity of the nanochannel geometry in anodic aluminium oxide (AAO) membranes can affect their applications and the reflectance properties of nanostructures. Using depth-profiling transmission electron microscopy, the truncated conical geometry of the entire nanochannels was revealed, and an effective etching method was introduced to remove the nonuniformity.
Article
Chemistry, Physical
Shu Li Liu, Guang Tao Fei, Shao Hui Xu, Xu Dong Gao, Hui Li
Summary: An optical-controlled photocurrent transistor of Au/TiO2 was prepared by a sol-gel method, and its photoelectric properties were studied. The hot-electron photocurrent excited by infrared source light can be controlled by ultraviolet gate light, resulting in the enhancement of photocurrent by reducing the Schottky barrier between Au and TiO2. This transistor shows potential applications in signal enhancement, modulation, and switching.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Xiao Li Ma, Guang Tao Fei, Shao Hui Xu
Summary: The study investigated the removal ability of PANI/m-FB composites towards Cr(VI), with results showing a maximum removal capacity of 293.13 mg-g(-1) at a pH value of 5.0, and the ability to be regenerated and reused after treatment with strong acid. Kinetic study indicated that the adsorption procedure is mainly controlled by chemical adsorption, and the composites demonstrated excellent recycling performance and high removal ability.
NANOSCALE RESEARCH LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Xu Dong Gao, Guang Tao Fei, Shao Hui Xu, Bin Nian Zhong, Hao Miao Ouyang, Xin Hua Li, Li De Zhang
Article
Materials Science, Multidisciplinary
Junxi Zhang, Wei Zhang, Wei Xu, Kang Xie, Qingsong Shan, Guangtao Fei, Junhui Jia, Xiaoguang Zhu, Lide Zhang, Zhiyong Fan, Haibo Zeng
Summary: Anodic aluminium oxide (AAO) membranes serve as templates for functional nanostructures with crucial characteristics that affect their applications. Utilizing an organic-inorganic hybrid self-pigmenting effect, the color of AAO membranes can be changed by tuning nanochannel size, dependent on both composition and structure.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)