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您的检索式：作者名="Limeng Sun"
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| 1 | Enhanced photoresponse of Ti0_(2)/MoS_(2)heterostructure phototransistors by the coupling of interface charge transfer and photogating显示文摘Two-dimensional(2D)MoS_(2)with appealing physical properties is a promising candidate for next-generation electronic and optoelectronic devices,where the ultrathin MoS_(2)is usually laid on or gated by a dielectric oxide layer.The oxide/MoS_(2)interfaces widely existing in these devices have significant impacts on the carrier transport of the MoS_(2)channel by diverse interface interactions.Artificial design of the oxide/MoS_(2)interfaces would provide an effective way to break through the performance limit of the 2D devices but has yet been well explored.Here,we report a high-performance MoS_(2)-based phototransistor with an enhanced photoresponse by interfacing few-layer MoS_(2)with an ultrathin Ti0_(2)layer.The Ti0_(2)is deposited on MoS_(2)through the oxidation of an e-beam-evaporated ultrathin Ti layer.Upon a visible-light illumination,the fabricated Ti0_(2)/MoS_(2)phototransistor exhibits a responsivity of up to 2,199 A/W at a gate voltage of 60 V and a detectivity of up to 1.67×10^(13)Jones at a zero-gate voltage under a power density of 23.2μW/mm^(2).These values are 4.0 and 4.2 times those of the pure MoS_(2)phototransistor.The significantly enhanced photoresponse of Ti0_(2)/MoS_(2)device can be attributed to both interface charge transfer and photogating effects.Our results not only provide valuable insights into the interactions at Ti0_(2)/MoS_(2)interface,but also may inspire new approach to develop other novel optoelectronic devices based on 2D layered materials. | Bingxu Liu Yinghui Sun Yonghuang Wu Kai Liu Huanyu Ye Fangtao Li Limeng Zhang Yong Jiang Rongming Wang | 2021 | Nano Research2021，14，4： | 4 |
| 2 | Clinical significance of miRNA-106a in non-small cell lung cancer patients who received cisplatin combined with gemcitabine chemotherapy显示文摘Objective:Research has demonstrated that microRNA(miR)-106a is related to cisplatin resistance.We investigated the expression of miR-106a in the serum of patients with non-small cell lung cancer(NSCLC)and their sensitivity to chemotherapy by cisplatin combined with gemcitabine.Methods:Eighty-five NSCLC patients,who completed four cycles of gemcitabine and cisplatin chemotherapy,volunteered for this study and their serum samples were collected.Serum samples from 60 healthy subjects were used as controls.Real-time quantitative polymerase chain reaction(real-time q PCR)was used to quantify the level of miR-106a in the serum.Demographic and survival data of these patients were collected for the analysis.Results:The expression of miR-106a in the serum of NSCLC patients was significantly higher than that of healthy subjects(P<0.001).The expression of miR-106a was not correlated with patients'gender,age,tumor size,lymphatic metastasis,and pathological types;but was correlated with patients'tumor staging(P=0.003).After chemotherapy,serum miR-106a expression decreased in patients.The decrease in miR-106a expression in the chemotherapy-sensitive group was much higher than that in the chemotherapy-resistant group.Survival analysis shows that NSCLC patients with high expression of miR-106a have a poorer prognosis.The overall survival of NSCLC patients in the chemotherapy-sensitive group was significantly higher than that in the chemotherapy-resistant group.Conclusions:High expression of miR-106a may be involved in the development of NSCLC.Mi R-106a has significance in the prognosis of NSCLC.The level of miR-106a in the serum can be a useful parameter in screening for drug resistance during cisplatin-based chemotherapy. | Ye Tian Changyu Sun Limeng Zhang Yuan Pan | 2018 | Cancer Biology & Medicine2018，15，2： | 3 |
| 3 | Engineering Strategies for Suppressing the Shuttle Effect in Lithium–Sulfur Batteries显示文摘Lithium–sulfur(Li–S)batteries are supposed to be one of the most potential next-generation batteries owing to their high theoretical capacity and low cost.Nevertheless,the shuttle effect of firm multi-step two-electron reaction between sulfur and lithium in liquid electrolyte makes the capacity much smaller than the theoretical value.Many methods were proposed for inhibiting the shuttle effect of polysulfide,improving corresponding redox kinetics and enhancing the integral performance of Li–S batteries.Here,we will comprehensively and systematically summarize the strategies for inhibiting the shuttle effect from all components of Li–S batteries.First,the electrochemical principles/mechanism and origin of the shuttle effect are described in detail.Moreover,the efficient strategies,including boosting the sulfur conversion rate of sulfur,confining sulfur or lithium polysulfides(LPS)within cathode host,confining LPS in the shield layer,and preventing LPS from contacting the anode,will be discussed to suppress the shuttle effect.Then,recent advances in inhibition of shuttle effect in cathode,electrolyte,separator,and anode with the aforementioned strategies have been summarized to direct the further design of efficient materials for Li–S batteries.Finally,we present prospects for inhibition of the LPS shuttle and potential development directions in Li–S batteries. | Jiayi Li Li Gao Fengying Pan Cheng Gong Limeng Sun Hong Gao Jinqiang Zhang Yufei Zhao Guoxiu Wang Hao Liu | 2024 | Nano-Micro Letters2024，16，1： | 0 |
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