Wide-angle spectrally selective absorbers and thermal emitters based on inverse opals

Posted by klaurent Harvard

Kavli Affiliate: Anna V. Shneidman | First 5 Authors: Alireza Shahsafi, Graham Joe, Soeren Brandt, Anna V. Shneidman, Nicholas Stanisic | Summary: Engineered optical absorbers are of substantial interest for applications ranging from stray light reduction to energy conversion. We demonstrate a large-area (centimeter-scale) metamaterial that features near-unity frequency-selective absorption in the mid-infrared wavelength range. […]


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Harnessing Fluctuations in Thermodynamic Computing via Time-Reversal Symmetries

Posted by klaurent Caltech

Kavli Affiliate: Michael L. Roukes | First 5 Authors: Gregory Wimsatt, Olli-Pentti Saira, Alexander B. Boyd, Matthew H. Matheny, Siyuan Han | Summary: We experimentally demonstrate that highly structured distributions of work emerge during even the simple task of erasing a single bit. These are signatures of a refined suite of time-reversal symmetries in distinct […]


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Mesophase Formation Stabilizes High-Purity Magic-Sized Clusters

Posted by Cornell

Kavli Affiliate: Richard D. Robinson | First 5 Authors: Douglas R. Nevers, Curtis B. Williamson, Benjamin H. Savitzky, Ido Hadar, Uri Banin | Summary: Magic-sized clusters (MSCs) are renowned for their identical size and closed-shell stability that inhibit conventional nanoparticle (NP) growth processes. Though MSCs have been of increasing interest, understanding the reaction pathways toward […]


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Structural Color 3D Printing By Shrinking Photonic Crystals

Posted by klaurent Caltech

Kavli Affiliate: Julia R. Greer | First 5 Authors: Yejing Liu, Hao Wang, Jinfa Ho, Ryan C. Ng, Ray J. H. Ng | Summary: The rings, spots and stripes found on some butterflies, Pachyrhynchus weevils, and many chameleons are notable examples of natural organisms employing photonic crystals to produce colorful patterns. Despite advances in nanotechnology, […]


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Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors

Posted by klaurent Berkeley

Kavli Affiliate: Ali Javey | First 5 Authors: Der-Hsien Lien, Shiekh Zia Uddin, Matthew Yeh, Matin Amani, Hyungjin Kim | Summary: Defects in conventional semiconductors substantially lower the photoluminescence (PL) quantum yield (QY), a key metric of optoelectronic performance that directly dictates the maximum device efficiency. Two-dimensional (2D) transition metal dichalcogenides (TMDCs), such as monolayer […]


Continue.. Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors

Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors

Posted by klaurent Berkeley

Kavli Affiliate: Ali Javey | First 5 Authors: Der-Hsien Lien, Shiekh Zia Uddin, Matthew Yeh, Matin Amani, Hyungjin Kim | Summary: Defects in conventional semiconductors substantially lower the photoluminescence (PL) quantum yield (QY), a key metric of optoelectronic performance that directly dictates the maximum device efficiency. Two-dimensional (2D) transition metal dichalcogenides (TMDCs), such as monolayer […]


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Sr3CrN3: a new electride with partially filled d-shells

Posted by klaurent Cornell

Kavli Affiliate: Jin Suntivich | First 5 Authors: Padtaraporn Chanhom, Kevin E. Fritz, Lee Burton, Jan Kloppenburg, Yaroslav Filinchuk | Summary: Electrides are ionic crystals in which the electrons prefer to occupy free space, serving as anions. Because the electrons prefer to be in the pockets, channels, or layers to the atomic orbitals around the […]


Continue.. Sr3CrN3: a new electride with partially filled d-shells

Sr3CrN3: a new electride with partially filled d-shells

Posted by klaurent Cornell

Kavli Affiliate: Jin Suntivich | First 5 Authors: Padtaraporn Chanhom, Kevin E. Fritz, Lee Burton, Jan Kloppenburg, Yaroslav Filinchuk | Summary: Electrides are ionic crystals in which the electrons prefer to occupy free space, serving as anions. Because the electrons prefer to be in the pockets, channels, or layers to the atomic orbitals around the […]


Continue.. Sr3CrN3: a new electride with partially filled d-shells

Type-II Ising Pairing in Few-Layer Stanene

Posted by klaurent Caltech

Kavli Affiliate: Joseph Falson | First 5 Authors: Joseph Falson, Yong Xu, Menghan Liao, Yunyi Zang, Kejing Zhu | Summary: Spin-orbit coupling has proven indispensable in realizing topological materials and more recently Ising pairing in two-dimensional superconductors. This pairing mechanism relies on inversion symmetry breaking and sustains anomalously large in-plane polarizing magnetic fields whose upper […]


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Effective Locomotion at Multiple Stride Frequencies Using Proprioceptive Feedback on a Legged Microrobot

Posted by klaurent Harvard

Kavli Affiliate: Robert J. Wood | First 5 Authors: Neel Doshi, Kaushik Jayaram, Samantha Castellanos, Scott Kuindersma, Robert J Wood | Summary: Limitations in actuation, sensing, and computation have forced small legged robots to rely on carefully tuned, mechanically mediated leg trajectories for effective locomotion. Recent advances in manufacturing, however, have enabled the development of […]


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