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  1. Article

    Open Access

    Nondestructive monitoring of annealing and chemical–mechanical planarization behavior using ellipsometry and deep learning

    The Cu-filling process in through-silicon via (TSV-Cu) is a key technology for chip stacking and three-dimensional vertical packaging. During this process, defects resulting from chemical–mechanical planarizat...

    Qimeng Sun, Dekun Yang, Tianjian Liu, Jianhong Liu in Microsystems & Nanoengineering (2023)

  2. Article

    Open Access

    Psychological reactions and insomnia in adults with mental health disorders during the COVID-19 outbreak

    The 2019 coronavirus disease (COVID-19) has disrupted millions of lives and commerce. We investigated psychological reactions and insomnia during the COVID-19 outbreak in adults with mental health disorders (M...

    Qimeng Sun, Qingsong Qin, Maria Basta, Baixin Chen, Yun Li in BMC Psychiatry (2021)

  3. No Access

    Article

    Durian shell-derived N, O, P-doped activated porous carbon materials and their electrochemical performance in supercapacitor

    It is very important to transform biomass-derived waste into useful materials with high performance. In this report, the N, O, P multiple heteroatom-doped activated porous carbon materials with enhanced electr...

    Kangyao Wang, Ziyue Zhang, Qimeng Sun, Peng Wang in Journal of Materials Science (2020)

  4. No Access

    Article

    Synthesis and Influence Factors Study of 4A Molecular Sieve via Halloysite

    A 4A Zeolite molecular sieve was successfully synthesized with a facile hydrothermal method. We used Yunnan soft kaolin as raw material, purified Halloysite and synthesized a 4A Zeolite molecular sieve directl...

    Yehan **ong, Guangwen Lu, Yongqian Wang, Qimeng Sun in Journal of Electronic Materials (2019)

  5. No Access

    Article

    The excellent capacitive capability for N,P-doped carbon microsphere/reduced graphene oxide nanocomposites in H2SO4/KI redox electrolyte

    In order to ameliorate the capacitance and energy density of supercapacitors in aqueous electrolytes, nitrogen- and phosphorus-codoped carbon microspheres/reduced graphene oxide nanocomposites are obtained by ...

    Qimeng Sun, Yueming Li, Tao He in Journal of Materials Science (2019)

  6. No Access

    Article

    Controllable Synthesis of MoS2@TiO2 Composite Nanostructure by Anodic Oxidation-Hydrothermal Technique

    MoS2@TiO2 composite nanostructure arrays consisting of thin MoS2 nanosheets on the surface of anodized TiO2 nanotube arrays were successfully synthesized with a facile anodic oxidation-hydrothermal technique. In ...

    Qimeng Sun, Xudong Yang, Jun Ma, **nchuan Liu in Journal of Electronic Materials (2019)

  7. No Access

    Article

    Synthesis and Photocatalytic Properties of Ce-Doped TiO2 Nanotube Arrays via Anodic Oxidation

    Ce-doped TiO2 nanotube arrays (TNAs) were prepared successfully through one-step anodic oxidation methods. The structural and morphological features of the TNAs were monitored by x-ray diffraction and field emiss...

    Junhan Kong, Yongqian Wang, Qimeng Sun, Dawei Meng in Journal of Electronic Materials (2017)

  8. No Access

    Article

    Synthesis, structure, and photoluminescence properties of Ce3+ and Tb3+ doped alkaline-earth silicate Sr2MgSi2O7 phosphors for WLEDs

    In this research, Ce3+ and Tb3+ doped alkaline-earth silicate Sr2MgSi2O7 phosphors have been synthesized by solid-state reaction. The results show that the Sr2−xMgSi2O7:xCe3+ phosphors exhibit a violet–blue emiss...

    Yongqian Wang, Yan Chen, Qimeng Sun, Bing Yan in Journal of Materials Research (2017)