Nano Letters
Papers 10,000
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#1Yixiao Dong (Emory University)H-Index: 23
#2J. Dale Combs (Emory University)H-Index: 1
Last. Khalid Salaita (Emory University)H-Index: 37
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Hydrogels embedded with periodic arrays of nanoparticles display a striking photonic crystal coloration that may be useful for applications such as camouflage, anticounterfeiting, and chemical sensing. Dynamically generating color patterns requires control of nanoparticle organization within a polymer network on-demand, which is challenging. We solve this problem by creating a DNA hydrogel system that shows a 50 000-fold decrease in modulus upon heating by ∼10 °C. Magnetic nanoparticles entrappe...
#1De-Jing Li (CAS: Chinese Academy of Sciences)H-Index: 8
#2Qiaohong Li (CAS: Chinese Academy of Sciences)H-Index: 22
Last. Jian Zhang (CAS: Chinese Academy of Sciences)
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The development of metal-organic frameworks (MOFs) with nonlinear optical (NLO) properties is of pronounced significance for optical devices. Herein, a series of 2D MOFs ZnTPyP(M) (TPyP = 5,10,15,20-tetrakis(4-pyridyl)porphyrin, M = Cu, Ni, Mn, H2) films with [010]-orientation growth composed of ultrathin nanosheets from a pyridylporphyrinic ligand are first obtained by using a liquid-phase epitaxial (LPE) layer-by-layer (lbl) growth approach. ZnTPyP(M) films show a giant nonlinear optical limit...
#1Matthew Donnelly (UNSW: UNSW Sydney)H-Index: 1
#2JG Joris Keizer (UNSW: UNSW Sydney)H-Index: 17
Last. Michelle Y. Simmons (UNSW: UNSW Sydney)H-Index: 61
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A requirement for quantum information processors is the in situ tunability of the tunnel rates and the exchange interaction energy within the device. The large energy level separation for atom qubits in silicon is well suited for qubit operation but limits device tunability using in-plane gate architectures, requiring vertically separated top-gates to control tunnelling within the device. In this paper, we address control of the simplest tunnelling device in Si:P, the tunnel junction. Here we de...
#1M. F. Ritter (IBM)H-Index: 3
#2Heinz Schmid (IBM)H-Index: 15
Last. Fabrizio Nichele (IBM)H-Index: 20
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Integration of high-quality semiconductor-superconductor devices into scalable and complementary metal-oxide-semiconductor compatible architectures remains an outstanding challenge, currently hindering their practical implementation. Here, we demonstrate growth of InAs nanowires monolithically integrated on Si inside lateral cavities containing superconducting TiN elements. This technique allows growth of hybrid devices characterized by sharp semiconductor-superconductor interfaces and with alig...
#1Sung Soo Shin (SNU: Seoul National University)H-Index: 7
#2Jeong Hun Kim (ETRI: Electronics and Telecommunications Research Institute)H-Index: 9
Last. Hyoungchul Kim (KIST: Korea Institute of Science and Technology)H-Index: 25
view all 8 authors...
Electrode architecturing for fast electrochemical reaction is essential for achieving high-performance of low-temperature solid oxide fuel cells (LT-SOFCs). However, the conventional droplet infiltration technique still has limitations in terms of the applicability and scalability of nanocatalyst implementation. Here, we develop a novel two-step precursor infiltration process and fabricate high-performance LT-SOFCs with homogeneous and robust nanocatalysts. This novel infiltration process is des...
#1Abhinandan Antony (CU: Columbia University)H-Index: 5
#2Martin V. Gustafsson (BBN Technologies)H-Index: 13
Last. Kin Chung Fong (BBN Technologies)H-Index: 18
view all 11 authors...
Quantum computers can potentially achieve an exponential speedup versus classical computers on certain computational tasks, recently demonstrated in superconducting qubit processors. However, the capacitor electrodes that comprise these qubits must be large in order to avoid lossy dielectrics. This tactic hinders scaling by increasing parasitic coupling among circuit components, degrading individual qubit addressability, and limiting the spatial density of qubits. Here, we take advantage of the ...
#1Mohsen Rezaei (NU: Northwestern University)H-Index: 9
#2Simone Bianconi (NU: Northwestern University)H-Index: 5
Last. Hooman Mohseni (NU: Northwestern University)H-Index: 24
view all 4 authors...
Photodetectors fabricated from low-dimensional materials such as quantum dots, nanowires, and two-dimensional materials show tremendous promise based on reports of very high responsivities. However, it is not generally appreciated that maximizing the internal gain may compromise the detector performance at low light levels, reducing its sensitivity. Here, we show that for most low-dimensional photodetectors with internal gain the sensitivity is determined by the junction capacitance. Thanks to t...
#1Jingcheng Ma (UIUC: University of Illinois Urbana-Champaign)H-Index: 5
#2Jin-Myung Kim (UIUC: University of Illinois Urbana-Champaign)H-Index: 15
Last. Nenad MiljkovicH-Index: 36
view all 7 authors...
The capillary force can peel off a substrate-attached film if the adhesion energy (Gw) is low. Capillary peeling has been used as a convenient, rapid, and nondestructive method for fabricating free-standing thin films. However, the critical value of Gw, which leads to the transition between peeling and sticking, remains largely unknown. As a result, capillary peeling remains empirical and applicable to a limited set of materials. Here, we investigate the critical value of Gw and experimentally s...
#1Yanan Dai (CU: Columbia University)H-Index: 10
#2Qijing Zheng (USTC: University of Science and Technology of China)H-Index: 14
Last. Xiaoyang Zhu (CU: Columbia University)H-Index: 82
view all 7 authors...
Transient tuning of material properties by light usually requires intense laser fields in the nonlinear excitation regime. Here, we report ultrafast ferroelectric ordering on the surface of a paraelectric topological semimetal 1T'-MoTe2 in the linear excitation regime, with the order parameter directly proportional to the excitation intensity. The ferroelectric ordering, driven by a transient electric field created by electrons trapped angstroms away from the surface in the image potential state...
#1Nishchay Suri (CMU: Carnegie Mellon University)H-Index: 3
#2Chong Wang (UW: University of Washington)H-Index: 16
Last. Di Xiao (UW: University of Washington)
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We discover chiral phonons at the lowest energy bands in moire superlattices. The moire chiral phonons we uncover are the collective excitations of the stacking domains. Their origin is uniquely attributed to the stacking configurations whose interlayer binding energy breaks the C2z symmetry on the moire length scale. Within elastic theory, we use a general symmetry analysis to provide a complete classification of van der Waals heterostructures in respect to hosting moire chiral phonons and show...
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