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| 1 | Enhanced Performance of a Monolayer MoS_2/WSe_2 Heterojunction as a Photoelectrochemical Cathode显示文摘Transition-metal dichalcogenide(TMD) semiconductors have attracted interest as photoelectrochemical(PEC) electrodes due to their novel band-gap structures,optoelectronic properties, and photocatalytic activities.However, the photo-harvesting efficiency still requires improvement. In this study, A TMD stacked heterojunction structure was adopted to further enhance the performance of the PEC cathode. A P-type WSe_2 and an N-type Mo S_2 monolayer were stacked layer-by-layer to build a ultrathin vertical heterojunction using a micro-fabrication method.In situ measurement was employed to characterize the intrinsic PEC performance on a single-sheet heterostructure.Benefitting from its built-in electric field and type II band alignment, the MoS_2/WSe_2 bilayer heterojunction exhibited exceptional photocatalytic activity and a high incident photo-to-current conversion efficiency(IPCE). Comparing with the monolayer WSe_2 cathode, the PEC current and the IPCE of the bilayer heterojunction increased by a factor of 5.6 and enhanced 50%, respectively. The intriguing performance renders the MoS_2/WSe_2 heterojunction attractive for application in high-performance PEC water splitting. | Jingwei Xiao Yu Zhang Huanjun Chen Ningsheng Xu Shaozhi Deng | 2018 | Nano-Micro Letters2018，10，4： | 6 |
| 2 | Reductive Cleavage of C-O Bond in Model Compounds of Lignin显示文摘 | Huanjun Xu Xinwei Liu Yanfei Zhao Cailing Wu Yu Chen Xiang Gao Zhimin Liu | 2017 | Chinese Journal of Chemistry2017，35，6： | 2 |
| 3 | Molybdenum Nanoscrews:A Novel Non-coinage-Metal Substrate for Surface-Enhanced Raman Scattering显示文摘For the first time, Mo nanoscrew was cultivated as a novel non-coinage-metal substrate for surface-enhanced Raman scattering(SERS). It was found that the nanoscrew is composed of many small screw threads stacking along its length direction with small separations. Under external light excitation, strong electromagnetic coupling was initiated within the gaps, and many hot-spots formed on the surface of the nanoscrew, which was confirmed by high-resolution scanning near-field optical microscope measurements and numerical simulations using finite element method. These hotspots are responsible for the observed SERS activity of the nanoscrews. Raman mapping characterizations further revealed the excellent reproducibility of the SERS activity. Our findings may pave the way for design of low-cost and stable SERS substrates. | Di An Yan Shen Jinxiu Wen Zebo Zheng Jun Chen Juncong She Huanjun Chen Shaozhi Deng Ningsheng Xu | 2017 | Nano-Micro Letters2017，9，1： | 1 |
| 4 | Gaschromic effect and relative mechanism of WO3 nanowire films 显示文摘 | CHEN Huanjun XU Ningsheng DENG Shaozhi | 2007 | Nanotechnology2007，18，： | 1 |
| 5 | Potent antibacterial activities of Ag/TiO2 nanocomposite powders synthesized by a one-pot sol-gel method 显示文摘 | ZHANG Huanjun CHEN Guohua | 2009 | Environ Sci Technol2009，43，8： | 1 |
| 6 | Photoelectrocatalytic materials for environmental applications显示文摘 | ZHANG Huanjun CHEN Guohua DETLEF W B | 2009 | J Mater Chem2009，，19： | 1 |
| 7 | Photoe- electrocatalytic materials for environmental applications 显示文摘 | ZHANG Huanjun CHEN Guohua BAHNEMANN Detlef W | 2009 | J Mater Chem2009，19，29： | 1 |
| 8 | Observation of the fano resonance in gold nanorods supported on high dielectric-constant substrates 显示文摘 | CHEN Huanjun SHAO Lei MING Tian | 2011 | ACS Nano2011，5，8： | 1 |
| 9 | Sensitive direct-conversion X-ray detectors formed by ZnO nanowire field emitters andβ-Ga_(2)O_(3)photoconductor targets with an electron bombardment induced photoconductivity mechanism显示文摘Sensitive X-ray detection is needed in diverse areas motivated by a common desire to reduce radiation dose.Cold cathode X-ray detectors operating with a photoelectron multiplication mechanism called electron bombardment induced photoconductivity(EBIPC)have emerged as promising candidates for low-dose X-ray detection.Herein,the cold cathode detectors formed by ZnO nanowire field emitters andβ-Ga_(2)O_(3)photoconductor targets were proposed for sensitive direct-conversion X-ray detection.The charge carrier transport mechanism of EBIPC effect in X-ray detectors was investigated to achieve a high internal gain(2.9×10^(2))and high detection sensitivity(3.0×10^(3)μCGy^(−1)_(air)cm^(−2))for a 6 keV X-ray at the electric field of 22.5 Vμm−1.Furthermore,the proposed X-ray detectors showed the features of fast response time(40 ms),long-term stability(0.6%for 1 h),and low detection limit(0.28 mGy_(air)s^(−1)),suggesting that the direct-conversion cold cathode X-ray detectors are ideal candidates for low-energy X-ray detecting and imaging applications. | ZHIPENG ZHANG MANNI CHEN XINPENG BAI KAI WANG HUANJUN CHEN SHAOZHI DENG JUN CHEN | 2021 | Photonics Research2021，9，12： | 1 |
| 10 | Dipole and charge effects of chloroaluminum phthalocyanine revealed by local work function measurements at sub-molecular level显示文摘Work function plays a significant role in surface chemistry. Local work function provides the information of local dipole-dipole interaction and charge distribution between adsorbates and substrate, highlighting the local charge effect of the targeted spot which is normally smeared out in conventional average work function measurements. Chloroaluminum phthalocyanine(ClAlPc), an important optoelectronic molecule with a permanent dipole moment pointing from the Pc ring to the ending Cl atom, adsorbed on Au(111) in either Cl-up or Cl-down configuration. Scanning tunneling microscopy/spectroscopy measurements revealed that at the centers of Cl-up and Cl-down molecules, the local work functions changed oppositely with respect to the Au(111) substrate. At their Pc lobes, however, the local work functions unanimously increased due to charging effect of the indole lobes in the ClAlPc molecule. | Huanjun Song Na Li Hao Zhu Zhantao Peng Wenhui Zhao Haoran Chen Wei Chen Yongfeng Wang Kai Wua | 2018 | Chinese Chemical Letters2018，29，3： | 0 |
| 11 | Experimental investigation of damage behavior of RC frame members including non-seismically designed columns显示文摘Reinforced concrete(RC) frame structures are one of the mostly common used structural systems,and their seismic performance is largely determined by the performance of columns and beams.This paper describes horizontal cyclic loading tests of ten column and three beam specimens,some of which were designed according to the current seismic design code and others were designed according to the early non-seismic Chinese design code,aiming at reporting the behavior of the damaged or collapsed RC frame strctures observed during the Wenchuan earthquake.The effects of axial load ratio,shear span ratio,and transverse and longitudinal reinforcement ratio on hysteresis behavior,ductility and damage progress were incorporated in the experimental study.Test results indicate that the non-seismically designed columns show premature shear failure,and yield larger maximum residual crack widths and more concrete spalling than the seismically designed columns.In addition,longitudinal steel reinforcement rebars were severely buckled.The axial load ratio and shear span ratio proved to be the most important factors affecting the ductility,crack opening width and closing ability,while the longitudinal reinforcement ratio had only a minor effect on column ductility,but exhibited more influence on beam ductility.Finally,the transverse reinforcement ratio did not influence the maximum residual crack width and closing ability of the seismically designed columns. | Chen Linzhi,Lu Xilin,Jiang Huanjun and Zheng Jianbo State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China PhD Candidate Professor Associate Professor Master of Engineering | 2009 | Earthquake Engineering and Engineering Vibration2009，8，2： | 0 |
| 12 | In-plane dipolar nano-antenna steers polariton waves at nanoscale显示文摘Hyperbolic polaritons can be launched and guided into mirror-symmetric-broken trajectories using an in-plane dipolar nano-antenna,and this asymmetry can be configured by adjusting the polarization direction of the in-plane dipole moment. | Huanjun Chen Shaozhi Deng | 2023 | Light(Science & Applications)2023，12，11： | 0 |
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