supported by the National Natural Science Foundation of China(Grant Nos.92065106,61974138,12104053,and 11704364);the Beijing Natural Science Foundation(Grant No.1192017);Tsinghua University Initiative Scientifc Research Program;the support from Youth Innovation Promotion Association,Chinese Academy of Sciences(Grant No.Y2021043);China Postdoctoral Science Foundation(Grant Nos.2020M670173 and 2020T130058)。
We demonstrate the in situ growth of ultra-thin InA s nanowires with an epitaxial Al film by molecular-beam epitaxy.Our InAs nanowire diameter(~30 nm)is much thinner than before(~100 nm).The ultra-thin InAs nanowires ...
Supported by the National Natural Science Foundation of China(Grant Nos.61804056 and 92065102);the Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics,Tsinghua University.
Ultra-thin topological insulators provide a platform for realizing many exotic phenomena such as the quantum spin Hall effect,and quantum anomalous Hall effect.These effects or states are characterized by quantized tr...
Supported by the National Basic Research Program of China under Grant Nos 2013CB921900 and 2014CB920900;the National Natural Science Foundation of China under Grant No 11374021)(S.Yan,Z.Xie,J.-H,Chen);support from the Elemental Strategy Initiative conducted by the MEXT,Japan;a Grant-in-Aid for Scientific Research on Innovative Areas"Science of Atomic Layers"from JSPS
The energy bandgap is an intrinsic character of semiconductors, which largely determines their properties. The ability to continuously and reversibly tune the bandgap of a single device during real time operation is o...
Supported by the National Natural Science Foundation of China under Grant No 61308070
Silver films fag) and silver-gold films (Ag-A u) with thickness -15 nm are coated on Bk 7 glasses through thermal evaporation. After doping gold of 5.2%, the grain size of the Ag film reduces from 13.6nm to 9.1 nm,...
Supported by the State Scholarship Fund of China;the Open Research Fund of Shanghai Key Laboratory of Multidimensional Information Processing of East China Normal University
As a potential flexible substrate for flexible electronics, a polymer-sandwiched ultra-thin silicon platform is stud- ied. SU-8 photoresist coated on the silicon membrane improves its flexibility as shown by an ANSYS ...
Supported by the National Program on Key Basic Research Project of China under Grant No 2011CBA00607;the National Natural Science Foundation of China under Grant Nos 61106089 and 61376097;the Zhejiang Provincial Natural Science Foundation of China under Grant No LR14F040001
Ultra-thin-body (UTB) In0.53Ga0.47As-on-insulator (In0.53Ga0.47As-OI) structures with thicknesses of 8 and 15nm are realized by transferring epitaxially grown In0.53Ga0.47As layers to silicon substrates with 15-nm...
Growth of high-quality ultra-thin Ag film is of great interest from both scientific and technological viewpoints. First, ultra-thin metal fihns are model systems utilized to investigate quantum size effects (QSE). W...
Supported by the National Natural Science Foundation of China under Grant Nos 61271250, 61172148, and 61302153.
We present a design of a low frequency ultra-thin compact and polarization-insensitive metamaterial absorber (MA). The designed MA is a two-layer structure, a periodic array of novel split-ring resonators (SRRs), ...
Supported by the Dandamental Research Funds for the Central Universities under Grant No JY10000925002, the National Key Science and Technology Special Project under Grant No 2008ZX01002-002, and the National Natural Science Foundation of China under Grant Nos 60736033, 60976068 and 61076097.
Al0.85In0.15N//AlN/GaN metal-oxide-semiconductor high electron mobility transistors (MOS-HEMTs) employing a 3-nm ultra-thin atomic-layer deposited (ALD) Al2O3 gate dielectric layer are reported. Devices with 0.6μ...
Ultra-thin and near-fully relaxed SiCe substrate is fabricated using a modified Ce condensation technique, and then a 25-nm-thiek biaxially tensile strained-Si with a low rms roughness is epitaxially deposited on a Si...