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| 1 | Large-area high quality PtSe2 thin film with versatile polarity显示文摘Two-dimensional(2D)materials have attracted increasing attention for their outstanding structural and electrical properties.However,for mass-production of field effect transistors(FETs)and potential applications in integrated circuits,large-area and uniform 2D thin films with high mobility,large on-off ratio,and desired polarity are needed to synthesize firstly.Here,a transfer-free growth method for platinum diselenide(PtSe2)films has been developed.The PtSe2 films have been synthesized with various thicknesses in centimeter-sized scale.Typical FET made from a few layer PtSe2 show p-type unipolar,with a high field-effect hole mobility of 6.2 cm^(2) V^(−1) s^(−1) and an on-off ratio of 5×10^(3).The versatile semimetal-unipolar-ambipolar transition in synthesized PtSe2 films is also firstly observed as the thickness thinning.This work realizes the large-scale preparation of PtSe2 with prominent electrical properties and provides a new strategy for polarity's modulation. | Wei Jiang Xudong Wang Yan Chen Guangjian Wu Kun Ba Ningning Xuan Yangye Sun Peng Gong Jingxian Bao Hong Shen Tie Lin Xiangjian Meng Jianlu Wang Zhengzong Sun | 2019 | InfoMat2019，1，2： | 5 |
| 2 | Materials Experiment on Tiangong-2 Space Laboratory显示文摘During the China's Tiangong-2(TG-2) flight mission, the experiments of 18 kinds of material samples were conducted in space by using a Multiple Materials Processing Furnace(MMPF) mounted in the orbital module of the TG-2 space laboratory. After the experiments of 12 kinds of samples of the first and second batches were completed successfully, astronauts packed and brought them back to the ground by ShenzhouII spacecraft. By studying processing and formation on semiconductor and optoelectronics materials, metal alloys and metastable materials, functional single-crystal, micro-and nano-composite materials encapsulated in sample ampoules both in space and on Earth, we expect to explore some physical and chemical processes and mechanism of the materials formation that are normally obscured and therefore are difficult to study quantitatively on the ground due to the gravity-induced convection, to obtain the processing and synthesis technology for preparing high quality materials, and lead to the improvement and development of materials processing techniques on Earth, and also develop the experiment device and comprehensive ability for materials experiment in microgravity environment. This report briefly introduces the main points of each research work and preliminary comparative analysis results of 12 samples carried out by scientists undertaking research task. | LI Xiangyang LU Ye MENG Xiangjian WANG Jianlu WANG Reng CHEN Lidong HUA Zile LI Xiaoya SHI Jianlin LIU Jinfeng XU Guisheng WEI Bingbo XIE Wenjun YIN Zhigang ZHANG Xingwang JIANG Hongxiang LI Hong LUO Xinghong ZHANG Haifeng ZHAO Jiuzhou WANG Binbin PAN Mingxiang | 2018 | 空间科学学报2018，38，5： | 4 |
| 3 | A versatile photodetector assisted by photovoltaic and bolometric effects显示文摘The advent of low-dimensional materials with peculiar structure and superb band properties provides a new canonical form for the development of photodetectors.However,the limited exploitation of basic properties makes it difficult for devices to stand out.Here,we demonstrate a hybrid heterostructure with ultrathin vanadium dioxide film and molybdenum ditelluride nanoflake.Vanadium dioxide is a classical semiconductor with a narrow bandgap,a high temperature coefficient of resistance,and phase transformation.Molybdenum ditelluride,a typical two-dimensional material,is often used to construct optoelectronic devices.The heterostructure can realize three different functional modes:(i)the p-n junction exhibits ultrasensitive detection(450 nm-2μm)with a dark current down to 0.2 pA and a response time of 17μs,(ii)the Schottky junction works stably under extreme conditions such as a high temperature of 400 K,and(iii)the bolometer shows ultrabroad spectrum detection exceeding 10μm.The flexible switching between the three modes makes the heterostructure a potential candidate for next-generation photodetectors from visible to longwave infrared radiation(LWIR).This type of photodetector combines versatile detection modes,shedding light on the hybrid application of novel and traditional materials,and is a prototype of advanced optoelectronic devices. | Wei Jiang Tan Zheng Binmin Wu Hanxue Jiao Xudong Wang Yan Chen Xiaoyu Zhang Meng Peng Hailu Wang Tie Lin Hong Shen Jun Ge Weida Hu Xiaofeng Xu Xiangjian Meng Junhao Chu Jianlu Wang | 2020 | Light(Science & Applications)2020，9，1： | 3 |
| 4 | Recent progress in organic solar cells(PartⅡdevice engineering)显示文摘1 Introduction Organic solar cells(OSCs)belong to a multidisciplinary field composed of chemistry,materials science,physics,engineering,etc.For a better reviewing of this field,we briefly divide the research field of OSCs into two parts:material science and device engineering.In our previous review,the material science part of OSCs,including conjugated polymer donors and acceptors,small molecular donors and acceptors. | Yahui Liu Bowen Liu Chang-Qi Ma Fei Huang Guitao Feng Hongzheng Chen Jianhui Hou Lingpeng Yan Qingya Wei Qun Luo Qinye Bao Wei Ma Wei Liu Weiwei Li Xiangjian Wan Xiaotian Hu Yanchun Han Yaowen Li Yinhua Zhou Yingping Zou Yiwang Chen Yuqiang Liu Lei Meng Yongfang Li Yongsheng Chen Zheng Tang Zhicheng Hu Zhi-Guo Zhang Zhishan Bo | 2022 | Science China Chemistry2022，65，8： | 3 |
| 5 | Preparation of La0.67Ca0.23Sr0.1MnO3 thin films with interesting electrical and magnetic properties via pulsed-laser deposition显示文摘Manganese oxides with a perovskite-type Re_(1-x)D_xMnO_3(Re:heavy rare-earth elements,D:divalent alkali metal)structure have attracted interest because of the complex interaction between their electrons,lattices,and spins[1-5].Generally,manganese oxides with the structure Re_(1-x)D_xMnO_3 have special properties.For example,the half-metallic manganites,such as La_(2/3)Sr_(1/3)MnO_3 and La_(2/3)Ca_(1/3)MnO_3,wherein the conduction electrons are completely spin polarized。 | Shuai Xue XiaoLin Zhao JianLu Wang BoBo Tian Hai Huang CaiMin Meng Lan Liu Lei Ye JingLan Sun XiangJian Meng XiaoDong Zhang JunHao Chu | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，2： | 2 |
| 6 | Lack of local adaptation of invasive crofton weed(Ageratina adenophora)in different climatic areas of Yunnan Province,China显示文摘Aims Crofton weed,with a subtropical origin,has successfully invaded in diverse habitats that belong to different climate zones in southwest China.We tested whether local adaptation plays an important role in the successful invasion of crofton weed in heterogeneous environments.Methods Five populations from different habitats with an altitude ranging from 678 to 2356 m were selected.Plant height,biomass,seed yield and seed germination capability of these populations were investigated in the field.greenhouse and reciprocal transplant experiments with the five populations were conducted,and all the above characters were measured and compared among these populations.Important Findings Plant height,biomass,seed yield and seed germination rate were each significantly different among the five populations in field.However,there was no difference among these populations in the greenhouse experiment.In the reciprocal transplant experiment,plants from the five populations responded similarly to different habitats in the field,indicat-ing lack of local adaptation.Instead,phenotypic plasticity likely plays a key role in the invasion success of crofton weed in different habitats. | Xiangjian Zhao Wenyao Liu Meng Zhou | 2013 | Journal of Plant Ecology2013，6，4： | 2 |
| 7 | Tandem organic solar cells with efficiency over 19% via the careful subcell design and optimization显示文摘The series-connected tandem device strategy is an effective approach to promote the efficiency of organic solar cells(OSCs) with broadened absorption range and alleviated thermalization and transmission loss.In this article,two nonfullerene acceptors,FB rThCl and BTP-4Se,with complementary absorptions covering the range from 300 to 1,000 nm were designed and synthesized for the front and rear cell,respectively.The front cell based on D18:FBr-ThCl exhibited a Voc of 1.053 V with high external quantum efficiency(EQE) response values ranging from 300 to 740 nm.The rear cell with a ternary active layer PM6:BTP-4 Se:F-2F was optimized and afforded the Voc of 0.840 V and Jsc of 26.88 mA cm^(-2).Subsequently,the tandem device was constructed with a fully solution-processed interconnected layer of ZnO/PEDOT:PS S/PMA,and demonstrated a power conversion efficiency(PCE) of 19.55% with a Voc of 1.880 V,a Jsc of 13.25 mA cm^(-2) and an FF of 78.47%. | Lingxian Meng Huazhe Liang Guangkun Song Mingpeng Li Yuzhong Huang Changzun Jiang Kai Zhang Fei Huang Zhaoyang Yao Chenxi Li Xiangjian Wan Yongsheng Chen | 2023 | Science China Chemistry2023，66，3： | 1 |
| 8 | Study on the electrical and optical properties of Pb(Mg1/3Nb2/3)O3- PbTiO3 thin films deposited by a chemical solution method显示文摘 | Liu Aiyun Meng Xiangjian Jinglan Sun | 2006 | Journal of Crystal Growth2006，290，1： | 1 |
| 9 | Pref>arationof highly (100) -oriented metallic LaNi03 films on Si sub-strates by a modified metalorganic decomposition technique显示文摘 | Meng Xiangjian Sun Jinglan Yu Jian | 2001 | Applied Surface Science2001，171，12： | 1 |
| 10 | A gate-free MoS2 phototransistor assisted by ferroelectrics显示文摘During the past decades,transition metal dichalcogenides(TMDs) have received special focus for their unique properties in photoelectric detection.As one important member of TMDs,MoS2 has been made into photodetector purely or combined with other materials,such as graphene,ionic liquid,and ferroelectric materials.Here,we report a gate-free MoS2 phototransistor combined with organic ferroelectric material poly(vinylidene fluoride-trifluoroethylene)(P(VDF-TrFE)).In this device,the remnant polarization field in P(VDF-TrFE) is obtained from the piezoelectric force microscope(PFM) probe with a positive or negative bias,which can turn the dipoles from disorder to be the same direction.Then,the MoS2 channel can be maintained at an accumulated state with downward polarization field modulation and a depleted state with upward polarization field modulation.Moreover,the P(VDF-TrFE) segregates MoS2 from oxygen and water molecules around surroundings,which enables a cleaner surface state.As a photodetector,an ultra-low dark current of 10^–11 A,on/off ration of more than 10^4 and a fast photoresponse time of 120 μs are achieved.This work provides a new method to make high-performance phototransistors assisted by the ferroelectric domain which can operate without a gate electrode and demonstrates great potential for ultra-low power consumption applications. | Shuaiqin Wu Guangjian Wu Xudong Wang Yan Chen Tie Lin Hong Shen Weida Hu Xiangjian Meng Jianlu Wang Junhao Chu | 2019 | Journal of Semiconductors2019，40，9： | 1 |
| 11 | Hydrogen sulfide ameliorates senescence in vascular endothelial cells through ameliorating inflammation and activating PPARδ/SGLT2/STAT3 signaling pathway显示文摘Mounting evidence demonstrates that hydrogen sulfide(H2S)promotes anti-inflammatory molecules and inhibits pro-inflammatory cytokines in endothelial cells(ECs).This study aims to investigate the favorable action of H2S on endothelial function in senescence by inhibiting the production of inflammatory molecules.Senescent ECs exhibit a reduction in H2S,endothelial nitric oxide synthase(eNOS)and peroxisome proliferator-activated receptorδ(PPARδ),coupled with increased inflammatory molecules,sodium glucose transporter type 2(SGLT2)and phosphorylation of STAT3,which could be reversed by the administration of a slow but sustained release agent of H2S,GYY4137.Decreased production of eNOS and upregulated p-STAT3 and SGLT2 levels in senescent ECs are reversed by replenishment of the SGLT2 inhibitor EMPA and the PPARδagonist GW501516.The PPARδantagonist GSK0660 attenuates eNOS expression and increases the production of p-STAT3 and SGLT2.However,supplementation with GYY4137 has no beneficial effect on GSK0660-treated ECs.GYY4137,GW501516 and EMPA preserve endothelialdependent relaxation(EDR)in D-gal-treated aortae,while GSK0660 destroys aortic relaxation even with GYY4137 supplementation.In summary,senescent ECs manifest aggravated the expressions of the inflammatory molecules SGLT2 and p-STAT3 and decreased the productions of PPARδ,eNOS and CSE.H2S ameliorates endothelial dysfunction through the anti-inflammatory effect of the PPARδ/SGLT2/p-STAT3 signaling pathway in senescent ECs and may be a potential therapeutic target for anti-ageing treatment. | Danyang Tian Jinqi Meng Lin Li Hongmei Xue Qi Geng Yuxin Miao Meng Xu Ru Wang Xiangjian Zhang Yuming Wu | 2023 | Acta Biochimica et Biophysica Sinica2023，55，9： | 1 |
| 12 | Ferroe- lectric properties of BiFeO3 thin films prepared via a sim- ple chemical solution deposition显示文摘 | Gao Cheng Meng Xiangjian Sun Jinglan | 2010 | Ferroelectrics2010，406，： | 1 |
| 13 | Improving current and mitigating energy loss in ternary organic photovoltaics enabled by two well-compatible small molecule acceptors显示文摘Ternary organic photovoltaic(OPV)strategy is an effective but facile approach to enhance the photovoltaic performance for single-junction devices.Herein,a series of ternary OPVs were fabricated by employing a wide bandgap donor(PBDB-TF)and two acceptor-donor-acceptor(A-D-A)-type nonfullerene small molecule acceptors(NF-SMAs,called F-2 Cl and 3 TT-OCIC).As the third component,the near-infrared SMA,3 TT-OCIC,has complementary absorption spectrum,narrow bandgap and wellcompatible crystallization property to the host acceptor(F-2 Cl)for efficient ternary OPVs.With these,the optimal ternary devices yield significantly enhanced power conversion efficiency of 15.23%,one of the very few examples with PCE higher than15%other than Y6 systems.This is mainly attributed to the increased short-circuit current density of 24.92 m A cm^(-2) and dramatically decreased energy loss of 0.53 e V.This work presents a successful example for simultaneously improving current,minimizing energy loss and together with modifying the morphology of active layers in OPVs,which will contribute to the further construction of high performance ternary OPVs. | Yanna Sun Huan-Huan Gao Simin Wu Lingxian Meng Xiangjian Wan Mengyang Li Zaifei Ma Ziqi Guo Shitong Li Hongtao Zhang Chenxi Li Yongsheng Chen | 2021 | Science China Chemistry2021，64，4： | 0 |
| 14 | Interface engineering of ferroelectric-gated MoS_(2) phototransistor显示文摘Two-dimensional(2D)layered materials have received significant attention owing to their unique crystal structures as well as outstanding optical and electric properties in photoelectric detection.However,most 2D materials are very sensitive to the environment.Adsorbates and traps introduced during the preparation process have a negative effect on the performance of devices based on these materials.Here,we focus on a molybdenum disulfide(MoS2)phototransistor gated by ferroelectrics,and insert a hexagonal boron nitride(h-BN)layer between MoS2 and the ferroelectric film to improve the interface.To clarify the role of h-BN in this device,two parallel devices are prepared on the same MoS_(2) flake.One device is covered with h-BN,while the other is in direct contact with the ferroelectric film.The electronic and optoelectronic properties of these two devices are then measured and compared.Experimental results reveal that,compared to device without h-BN,the MoS_(2) phototransistor with h-BN exhibits higher carrier mobility(average value:85 cm^(2)·V^(-1)·s^(-1) and highest value:185 cm^(2)·V^(-1)·s^(-1)),larger responsivity(85 A·W-1),and larger detectivity(1.76×10^(13) Jones).Thus,this strategy is significant for the interface engineering and performance improvement of devices based on 2D materials. | Shuaiqin WU Xudong WANG Wei JIANG Luqi TU Yan CHEN Jingjing LIU Tie LIN Hong SHEN Jun GE Weida HU Xiangjian MENG Jianlu WANG Junhao CHU | 2021 | Science China(Information Sciences)2021，64，4： | 0 |
| 15 | A study on ionic gated MoS2 phototransistors显示文摘Molybdenum disulfide(MoS2) holds great promise in the future applications of nanoelectronics and optoelectronic devices. Exploring those interesting physical properties of MoS2 using a strong electric field provided by electrolyte-gel is a robust approach. Here, we fabricate an Mo S2 phototransistor gated by electrolyte-gel which is located on a fused silica substrate. Under the modulation of electrolyte-gel, the Schottky barrier between MoS2 and source/drain electrodes can be widely regulated from 11 to 179 me V. The MoS2 phototransistor exhibits excellent responsivity of 2.68 × 104 A/W and detectivity of 9.6 × 1010 Jones under visible incident light at negative gate voltage modulation. We attribute the optoelectronic performance enhancement to the Schottky barrier modulation of electrolyte-gel gating. It makes the device suitable for applications in high-sensitive photodetectors. | Binmin WU Xudong WANG Hongwei TANG Tie LIN Hong SHEN Weida HU Xiangjian MENG Wenzhong BAO Jianlu WANG Junhao CHU | 2019 | Science China(Information Sciences)2019，62，12： | 0 |
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