Article
Chemistry, Multidisciplinary
Zhaohang Xue, Zipu Fan, Xin Liao, Yaolong Li, Yulu Qin, Guanyu Zhang, Xiaoming Song, Zhi-Min Liao, Dong Sun, Guowei Lu, Qihuang Gong
Summary: The artificial engineering of photoresponse is crucial for optoelectronic applications, and in this study, a metasurface on a semimetallic Cd3As2 nanoplate was designed and fabricated to improve its thermoelectric photoresponse. The metasurface enhanced light absorption and resulted in a temperature gradient, contributing to the thermoelectric photoresponse. The power-dependent and wavelength-dependent measurements confirmed the excellent photoresponse characteristics of the metasurface device, including a linearly dependent photoresponse and efficient separation of photoexcited carriers. The designed metasurface device also demonstrated an anisotropic polarization-dependent photoresponse. This study highlights the potential of metasurfaces in controlling the photoresponse of semimetallic materials.
Article
Nanoscience & Nanotechnology
Subhajit Jana, Sourabh Pal, Shivakiran B. N. Bhaktha, Samit K. Ray
Summary: This study reports the enhanced photodetection properties of MoSe2/Au-ZnO vertical heterostructures by investigating the synergistic effect of Au nanoislands on the optical response of ZnO nanorods and MoSe2 nanoflakes. The plasmonic effects mediated strong light-matter interactions in the Au-ZnO hybrids, leading to energy transfer and enhanced signal throughout the operational bandwidth of the devices. The use of 2D/1D mixed-dimensional heterostructures and resonant coupling with strategically integrated plasmonic nanoislands make these devices highly responsive broadband photodetectors for future nanophotonic applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Wenjie Cheng, Wei Tian, Fengren Cao, Liang Li
Summary: This study demonstrates the successful development of a bifunctional photodetector that can detect photons in both broadband and narrowband. By introducing polyvinylpyrrolidone to increase the viscosity of the perovskite precursor solution and using methylamine gas for postprocessing, the researchers achieved narrowband and broadband dual-function photodetection in a single device. This work represents an important step towards the realization of perovskite-based multifunctional integrated devices.
Article
Chemistry, Multidisciplinary
Xiangyang Li, Shuangchen Ruan, Haiou Zhu
Summary: High responsivity and fast photoresponse time in a graphene-based photodetector have been achieved by growing SnS nanoflakes directly on graphene, avoiding contamination and ensuring high quality and low trap density. The photodetector exhibits extended broad-spectrum photoresponse and a large photoresponsivity of 41.3 AW(-1) with a fast response time of around 19 ms at 1550 nm. Strategies for broadband response and sensitive photodetectors with SnS nanoflakes/graphene are discussed.
Article
Chemistry, Physical
Gang Li, Hanlin Zhang, Yong Li, Shiqi Yin, Xucai Kan, Wensen Wei, Haifeng Du, Binghui Ge, Chao An, Mingliang Tian, Feng Yan, Sanjun Yang, Tianyou Zhai, Liang Li
Summary: Broadband photodetectors with polarization-sensitive ability have attracted significant attention for their potential use in optoelectronic devices. In this work, a low-symmetry two-dimensional material, neodymium diantimonides (NdSb2), is introduced as a highly anisotropic material for broadband detection. The photodetector demonstrates high responsivity and fast response time at 532 nm, as well as stable performance over a long period of time. The polarization sensitivity and anisotropic factor of the detector are also investigated, revealing its potential for high-performance polarized photodetectors.
Article
Chemistry, Physical
Shivi Rathore, Dinesh Kumar Patel, Mukesh Kumar Thakur, Golam Haider, Martin Kalbac, Mattias Kruskopf, Chieh- Liu, Albert F. Rigosi, Randolph E. Elmquist, Chi-Te Liang, Po-Da Hong
Summary: Epitaxial graphene (EG) on 4H-SiC with an interfacial buffer layer (IBL) shows improved photoresponsivity, enabling positive and negative photoresponses for different laser excitations. The broadband binary photoresponse is mainly due to the energy band alignment at the IBL/EG interface and the sensitive work function of EG, resulting in a photoresponsivity of >10 A/W under certain conditions. These results pave the way for selective light-triggered logic devices based on EG and open new possibilities for broadband photodetection.
Article
Chemistry, Multidisciplinary
Yunpeng Lin, Jinyong Hu, Wenbo Zhang, Li Jiang, Deqi Yi, Thitima Rujiralai, Jie Ma
Summary: This study developed an enhanced Ag@Au dimer optical antenna that achieved broadband fluorescence enhancement throughout the visible spectrum by utilizing nano-sized silver and gold. Compared to traditional silver dimer optical antennas, the Ag@Au dimer antenna exhibited improved optical response in the blue range and maintained superior chemical stability and accessibility to functionalization.
Article
Chemistry, Multidisciplinary
Shusen Lin, Rakesh Kulkarni, Rutuja Mandavkar, Md Ahasan Habib, Shalmali Burse, Sundar Kunwar, Jihoon Lee
Summary: In this work, a hybrid UV photodetector was constructed by combining multi-metallic plasmonic alloy NPs on a GaN photoactive layer, leading to a significant enhancement in photocurrent and excellent performance parameters. Among the various devices, the tri-metallic AgAuCu NP photodetector demonstrated the highest performance with superior photoresponsivity, detectivity, and EQE.
Article
Chemistry, Multidisciplinary
Oscar A. Douglas-Gallardo, Connor L. Box, Reinhard J. Maurer
Summary: The study focuses on the optical, electronic, and catalytic properties of metallic Mg nanoclusters and finds they can produce highly energetic hot electrons, promoting hydrogen dissociation reactions. Mg nanoclusters show promising potential for use in light-driven hydrogen storage and release.
Article
Engineering, Electrical & Electronic
Liming Wang, Yichi Zhang, Bo Wang, Jie You, Ying Wei, Lingyao Meng, Tao Liu, Zuimin Jiang, Huiyong Hu
Summary: Au nanoparticles were deposited on germanium devices to study their impact on the electronic transport and photodetection properties of Ge metal-semiconductor-metal photodetectors. The introduction of Au NPs led to significant hysteresis behavior and improved responsivity at the optical communication wavelength of 1.55 μm. This increase in responsivity was attributed to a type-II liked energy band alignment, enhancing the spatial electron-hole separation effect. These findings offer inspiration for the development of innovative optoelectronic devices.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Optics
Jongcheol Park, Il-Suk Kang, Gapseop Sim, Tae Hyun Kim, Jong-Kwon Lee
Summary: Randomly distributed plasmonic Ag nanoparticles on Si photodiode with antireflective SiNx/SiO2 bilayer show enhanced light absorption and responsivity, indicating potential applications in photodetectors.
Article
Nanoscience & Nanotechnology
Yongan Zhu, Wei Lu, Tongtong Gu, Xin Gao, Naisen Yu, Sergey Yu. Ketkov, Zhenyi Zhang
Summary: We developed a plasmonic semiconductor photodetector based on W18O49 nanowire array (NWA) to achieve a tunable broadband photodetector. By adjusting the plasmonic absorption intensity of the W18O49 NWA through manipulating the free electron density with an external voltage, the responsivity and detectivity of the photodetector in the visible-NIR region were significantly increased. The proposed strategy of using low-cost nonmetallic plasmonic nanostructures offers a promising way to construct broadband-tunable photodetectors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Junxiong Guo, Lin Lin, Shangdong Li, Jianbo Chen, Shicai Wang, Wanjing Wu, Ji Cai, Yu Liu, Jinghua Ye, Wen Huang
Summary: A study demonstrated a broadband plasmonic photodetector based on gold nanoparticles and a stack structure of 2D materials, achieving enhanced light absorption and responsivity. By controlling the geometry of gold nanoparticles, the plasmon resonance peaks could be tuned to improve light absorption over a broad spectral range. The device showed high responsivity, detectivity, and ultrafast response, with great potential for large-scale production of nanoscale optoelectronic devices with low power consumption.
ACS APPLIED NANO MATERIALS
(2022)
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
Nanoscience & Nanotechnology
Song Yang, Shujie Jiao, Hongliang Lu, Shuo Liu, Yiyin Nie, Shiyong Gao, Dongbo Wang, Jinzhong Wang
Summary: Bismuth telluride (Bi2Te3) as an emerging two-dimensional material has excellent optoelectronic and thermoelectric properties. This study systematically investigated the morphological evolution and growth mechanism of 2D Bi2Te3 nanosheets, annealed them to enhance their performance in self-powered broadband photodetectors, showing significant enhancement in photocurrent, especially under near-infrared light illumination. The results indicate the great potential of annealed Bi2Te3 nanosheets for high-speed broadband photodetectors with high responsivity.
Article
Nanoscience & Nanotechnology
Biying Tan, Huihui Yang, Yunxia Hu, Feng Gao, Lifeng Wang, Mingjin Dai, Shichao Zhang, Huiming Shang, Hongyu Chen, PingAn Hu
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Lin Li, Hongyu Chen, Zhimin Fang, Xianyi Meng, Chuantian Zuo, Menglan Lv, Yongzhi Tian, Ying Fang, Zuo Xiao, Chongxin Shan, Zhengguo Xiao, Zhiwen Jin, Guozhen Shen, Liang Shen, Liming Ding
ADVANCED MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Ling Li, Wei Gao, Hongyu Chen, Kai Zhao, Peiting Wen, Yujue Yang, Xingfu Wang, Zhongming Wei, Nengjie Huo, Jingbo Li
ADVANCED ELECTRONIC MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Mingjin Dai, Hongyu Chen, Fakun Wang, Mingsheng Long, Huiming Shang, Yunxia Hu, Wen Li, Chuanyang Ge, Jia Zhang, Tianyou Zhai, Yongqing Fu, PingAn Hu
Article
Nanoscience & Nanotechnology
Xiaoning Han, Peiting Wen, Li Zhang, Wei Gao, Hongyu Chen, Feng Gao, Shihao Zhang, Nengjie Huo, Bingsuo Zou, Jingbo Li
Summary: A novel p-Ta-n heterojunction photodetector with high anisotropic ratio and self-powered detection across a wide range of wavelengths has been designed and optimized, demonstrating excellent stability and photocurrent response.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Wenhai Wang, Ruolan Mei, Qixiao Zhao, Cong Liu, Hongyu Chen, Shichen Su, Shuangpeng Wang
Summary: Polymeric carbon nitride (PCN) has great potential applications in various fields, but efficient phosphorescence is rare due to the lack of an effective synthetic method and an unsettled phosphorescent mechanism. In this study, a strategy to promote efficient phosphorescence by introducing S and N elements was reported. PCN with enhanced phosphorescence was successfully synthesized by introducing C=S and C N groups.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Ji Yu, Jie Zheng, Hongyu Chen, Ning Tian, Lin Li, Yanmei Qu, Yongtao Huang, Yinxian Luo, Wenzhu Tan
Summary: A high-performance NIR photodetector based on CH3NH3PbI3 single crystal was fabricated for NIR bioimaging, and successfully used in imaging mouse organs. The results demonstrate the feasibility and potential applications of the photodetector in NIR bioimaging.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Peiting Wen, Li Zhang, Wei Gao, Qian Yue, Hanyu Wang, Ying Huang, Jing Wu, He Yu, Hongyu Chen, Nengjie Huo, Jingbo Li
Summary: This study presents a novel gate-tunable lateral homojunction of MoTe2, which enables broad-spectrum photodetection and conversion of light signals to electrical signals through gate modulation. The structure exhibits excellent optoelectronic properties, offering a new pathway for potential development in computational sensors and logic optoelectronics.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yuan Pan, Qixiao Zhao, Feng Gao, Mingjin Dai, Wei Gao, Tao Zheng, Shichen Su, Jingbo Li, Hongyu Chen
Summary: This study identifies promising new two-dimensional material γ-InSe with low-symmetry structures for developing monolithic polarization-sensitive photodetectors. A superior responsivity polarization-sensitive photodetector based on multilayer γ-InSe is constructed, showing high efficiency of light absorption, excellent carrier mobility, and exceptional responsivity under polarized light. These findings provide insights into in-plane anisotropic properties of 2D materials and propose a stable and environmentally friendly candidate for anisotropic optoelectronic applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Shan Huang, Hongyu Chen, Sujuan Wang, Yang Chen, Jianfeng He, Wenhai Wang, Yuan Pan, Yunpeng Zhao, Ligan Qi, Shichen Su
Summary: Based on charge-polarity control, a novel anti-ambipolar heterotransistor was proposed using a special In2Se3 & WSe2 van der Waals heterostructure. It can reversibly change polarity between anti-ambipolar and P-type by treating an optical signal as an input. The device's charge neutrality point can be selectively varied with changes in laser power density, and it exhibits a high I-on/I-off ratio, making it suitable for future optoelectronic circuits.
Article
Chemistry, Physical
Ying Wei, Xiao Liu, Yu Miao, Yuxin Liu, Chuanglei Wang, Xiangjing Ying, Gaotian Zhang, Huaimin Gu, Menglong Zhang, Hongyu Chen
Summary: By decorating CsPbBr3 NWs with CdS@CdxZn1-xS QDs, the responsivity of perovskite-based photodetectors can be greatly enhanced. The unique energy level structure of CdS@CdxZn1-xS QDs is favorable for light-harvesting and photocarrier separation.
NANOSCALE HORIZONS
(2022)
Article
Chemistry, Multidisciplinary
Qixiao Zhao, Feng Gao, Hongyu Chen, Wei Gao, Mengjia Xia, Yuan Pan, Hongyan Shi, Shichen Su, Xiaosheng Fang, Jingbo Li
Summary: In this study, a novel polarization-sensitive self-powered imaging photodetector based on p-Te/n-MoSe2 van der Waals heterojunction with strong interlayer transition was proposed, showing high rectification ratio and excellent photovoltaic characteristics. The device exhibited ultrahigh on/off ratio and responsivity without any power supply, with the anisotropic ratio of the photocurrent reaching as high as 16.39. The research provides a new building block for high resolution polarization-sensitive photodetection of weak signals in complex environments.
MATERIALS HORIZONS
(2021)
Article
Materials Science, Multidisciplinary
Yiming Sun, Wei Gao, Xueping Li, Congxin Xia, Hongyu Chen, Li Zhang, Dongxiang Luo, Weijun Fan, Nengjie Huo, Jingbo Li
Summary: van der Waals (vdW) heterostructures, formed by stacking different 2D materials, provide a promising platform for diverse physical phenomena and device functions. By utilizing gate voltage to modulate carrier concentration and transport in heterojunctions like MoTe2 and InSe, novel electronic and optoelectronic devices can be achieved. The MoTe2/InSe heterojunction exhibits anti-ambipolar transfer characteristics with a large work window and high peak-to-valley current ratio, showing potential for high-performance multifunctional optoelectronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Jianfeng He, Hongyu Chen, Qixiao Zhao, Yifan Wang, Yuan Pan, Shan Huang, Francis Chi-Chung Ling, Shuangpeng Wang, Shichen Su
Summary: Layer-structured beta-In2Se3 microwires were successfully prepared without a catalyst, serving as building blocks for high-performance photodetectors. A lateral p-n junction based on CuInSe2/In2Se3 microwire exhibited excellent photovoltaic characteristics with high rejection ratio and responsivity, offering new insights for the rational design of efficient and cost-effective photodetectors.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Huiming Shang, Hongyu Chen, Mingjin Dai, Yunxia Hu, Feng Gao, Huihui Yang, Bo Xu, Shichao Zhang, Biying Tan, Xin Zhang, PingAn Hu
NANOSCALE HORIZONS
(2020)
