Search Results - "Junfeng Dai"

Valley polarization in MoS2 monolayers by optical pumping by Zeng, Hualing, Dai, Junfeng, Yao, Wang, Xiao, Di, Cui, Xiaodong

“…Most electronic devices exploit the electric charge of electrons, but it is also possible to build devices that rely on other properties of electrons…”
Get full text

Anomalously robust valley polarization and valley coherence in bilayer WS2 by Zhu, Bairen, Zeng, Hualing, Dai, Junfeng, Gong, Zhirui, Cui, Xiaodong

“…We report the observation of anomalously robust valley polarization and valley coherence in bilayer WS2. The polarization of the photoluminescence from bilayer…”
Get full text

Application of dynamic baseline adjustment based on swarm intelligence optimization in the signal processing of fiber SPR sensor by Junfeng, Dai, Li-hui, Fu

“…In view of the difficulty in determining the appropriate parameters in traditional centroid method, which is used to detect the resonance point of SPR…”
Get full text

Water grade judgment of aquaculture based on IBES and evidence fusion by Junfeng, Dai, Li-hui, Fu

“…•A refractive learning strategy is adopted in improved Bald Eagle Search (IBES).•The reliability coefficient in evidence theory is optimized by IBES…”
Get full text

Mixed oil detection method based on tapered fiber SPR sensor by Li-hui, Fu, Junfeng, Dai

“…•The structure of fiber SPR sensor is studied and optimized in this paper, and the tapered fiber SPR sensor is proposed and used to detect mixed oil. The main…”
Get full text

Fire judgment method based on intelligent optimization algorithm and evidence fusion by Junfeng, Dai, Li-hui, Fu

“…To reduce the adverse effects of inevitable error and random error in the fire data obtained by multiple sensors, in this paper, we propose a fire judgment…”
Get full text

Optical signature of symmetry variations and spin-valley coupling in atomically thin tungsten dichalcogenides by Zeng, Hualing, Liu, Gui-Bin, Dai, Junfeng, Yan, Yajun, Zhu, Bairen, He, Ruicong, Xie, Lu, Xu, Shijie, Chen, Xianhui, Yao, Wang, Cui, Xiaodong

“…We report systematic optical studies of WS 2 and WSe 2 monolayers and multilayers. The efficiency of second harmonic generation shows a dramatic even-odd…”
Get full text

Defect Engineering in Single-Layer MoS2 Using Heavy Ion Irradiation by He, Zuyun, Zhao, Ran, Chen, Xiaofei, Chen, Huijun, Zhu, Yunmin, Su, Huimin, Huang, Shengxi, Xue, Jianming, Dai, Junfeng, Cheng, Shuang, Liu, Meilin, Wang, Xinwei, Chen, Yan

“…Transition metal dichalcogenides (TMDs) have attracted much attention due to their promising optical, electronic, magnetic, and catalytic properties…”
Get full text

Effects of Bithiophene Imide Fusion on the Device Performance of Organic Thin‐Film Transistors and All‐Polymer Solar Cells by Wang, Yingfeng, Yan, Zhenglong, Guo, Han, Uddin, Mohammad Afsar, Ling, Shaohua, Zhou, Xin, Su, Huimin, Dai, Junfeng, Woo, Han Young, Guo, Xugang

“…Two new bithiophene imide (BTI)‐based n‐type polymers were synthesized. f‐BTI2‐FT based on a fused BTI dimer showed a smaller band gap, a lower LUMO, and…”
Get full text

Is Excess PbI2 Beneficial for Perovskite Solar Cell Performance? by Liu, Fangzhou, Dong, Qi, Wong, Man Kwong, Djurišić, Aleksandra B., Ng, Annie, Ren, Zhiwei, Shen, Qian, Surya, Charles, Chan, Wai Kin, Wang, Jian, Ng, Alan Man Ching, Liao, Changzhong, Li, Hangkong, Shih, Kaimin, Wei, Chengrong, Su, Huimin, Dai, Junfeng

“…Unreacted lead iodide is commonly believed to be beneficial to the efficiency of methylammonium lead iodide perovskite based solar cells, since it has been…”
Get full text

Redox reactions control Cu and Fe isotope fractionation in a magmatic Ni–Cu mineralization system by Zhao, Yun, Xue, Chunji, Liu, Sheng-Ao, Mathur, Ryan, Zhao, Xiaobo, Yang, Yongqiang, Dai, Junfeng, Man, Ronghao, Liu, Ximeng

“…Copper and Fe are redox-sensitive metals, and their isotopic compositions may potentially record changes of oxidation conditions in high-temperature magmatic…”
Get full text

Dynamic fingerprint of fractionalized excitations in single-crystalline Cu3Zn(OH)6FBr by Fu, Ying, Lin, Miao-Ling, Wang, Le, Liu, Qiye, Huang, Lianglong, Jiang, Wenrui, Hao, Zhanyang, Liu, Cai, Zhang, Hu, Shi, Xingqiang, Zhang, Jun, Dai, Junfeng, Yu, Dapeng, Ye, Fei, Lee, Patrick A., Tan, Ping-Heng, Mei, Jia-Wei

“…Beyond the absence of long-range magnetic orders, the most prominent feature of the elusive quantum spin liquid (QSL) state is the existence of fractionalized…”
Get full text

Unraveling the Raman Enhancement Mechanism on 1T′‐Phase ReS2 Nanosheets by Miao, Peng, Qin, Jing‐Kai, Shen, Yunfeng, Su, Huimin, Dai, Junfeng, Song, Bo, Du, Yunchen, Sun, Mengtao, Zhang, Wei, Wang, Hsing‐Lin, Xu, Cheng‐Yan, Xu, Ping

“…2D transition metal dichalcogenides materials are explored as potential surface‐enhanced Raman spectroscopy substrates. Herein, a systematic study of the Raman…”
Get full text

A Measuring Method of DOM Components Based on Fiber SPR Sensor and ICPSO-BP Neural Network by Li-Hui, Fu, Junfeng, Dai

“…As the single sensor is not competent for the variation of the total amount and components of DOM in a large range, according to the cross-sensitivity between…”
Get full text

Lijiang flood characteristics and implication of karst storage through Muskingum flood routing via HEC-HMS, S. China by Rad, Saeed, Junfeng, Dai, Jingxuan, Xu, Zitao, Li, Linyan, Pan, Wan, Zepeng, Lin, Liao

“…We analyzed the characteristics of main karstic/non-karst reaches of the Lijiang River to uncover the causes behind different flood behaviors by providing a…”
Get full text

Distinctive in-Plane Cleavage Behaviors of Two-Dimensional Layered Materials by Guo, Yao, Liu, Chunru, Yin, Qifang, Wei, Chengrong, Lin, Shenghuang, Hoffman, Tim B, Zhao, Yuda, Edgar, J. H, Chen, Qing, Lau, Shu Ping, Dai, Junfeng, Yao, Haimin, Wong, H.-S. Philip, Chai, Yang

“…Mechanical exfoliation from bulk layered crystal is widely used for preparing two-dimensional (2D) layered materials, which involves not only out-of-plane…”
Get full text

Continuously tunable ferroelectric domain width down to the single-atomic limit in bismuth tellurite by Han, Mengjiao, Wang, Cong, Niu, Kangdi, Yang, Qishuo, Wang, Chuanshou, Zhang, Xi, Dai, Junfeng, Wang, Yujia, Ma, Xiuliang, Wang, Junling, Kang, Lixing, Ji, Wei, Lin, Junhao

“…Emerging functionalities in two-dimensional materials, such as ferromagnetism, superconductivity and ferroelectricity, open new avenues for promising…”
Get full text

Role of Hematite-Rich Host Rocks in the Gold Mineralization of the Woxi Au (-Sb-W) Ore Deposit in Western Jiangnan Orogen of South China by Zhang, Jian, Deng, Teng, Xu, Deru, Dai, Junfeng, Li, Zenghua, Li, Bin, Zhou, Yueqiang

“…The formation of many hydrothermal gold deposits is closely related to iron-rich rocks. The host rocks of the Madiyi Formation of the Mid- to Late…”
Get full text

The Study of Spin-Valley Coupling in Atomically Thin Group VI Transition Metal Dichalcogenides by Zhu, Bairen, Zeng, Hualing, Dai, Junfeng, Cui, Xiaodong

“…In the hunt for ultimately thin electronic devices, atomically thin layers of group VI transition metal dichalcogenides (TMDCs) are recognized as ideal 2D…”
Get full text

Strain-induced light emission enhancement in CsPbBr3 microwires by Ghosh, Poulami, Farooq, Umar, Su, Huimin, Pei, Shenghai, Li, Gaomin, He, Wei, Dai, Junfeng, Huang, Li, Huang, Mingyuan

“…Metal halide perovskites have gained huge research interest within few decades due to their optoelectronic applications. Recently, inorganic metal halide…”
Get full text