The latest research from Nature Materials January 2021

[Nature Materials]( [] Advertisement Accelerating materials discovery with atomic scale simulation and cloud computing This webcast will describe how advances in Schrödinger's atomic scale simulation methods and Google Cloud's high-performance computing resources are speeding up materials discovery and design projects. [Register for this webcast FREE today]( Sponsored by: [Schrödinger]( TABLE OF CONTENTS --------------------------------------------------------------- January 2021 Volume 20, Issue 1 [Current issue]( [Editorial](#_20_1-1) [News & Views](#_20_1-2) [Review Articles](#_20_1-3) [Letters](#_20_1-4) [Articles](#_20_1-5) [Amendments & Corrections](#_20_1-6) Advertisement Launching two new online masterclasses Delivered by expert Nature editors, the new courses cover managing data and narrative tools for researchers. Learn more about them and how to subscribe to our training platform for your team. [Get a quote >>]( [] Editorial [ ] [A Nobel Prize for genetic scissors p1]( doi:10.1038/s41563-020-00895-z [] News & Views [ ] [Guiding tissue-scale self-organization pp2 - 3]( Zev J. Gartner & Jennifer L. Hu doi:10.1038/s41563-020-00885-1 [ ] [New lessons for stealth technology p4]( Philip Ball doi:10.1038/s41563-020-00887-z [ ] [Immediately produced, immortally preserved pp5 - 6]( Taka-hisa Arima doi:10.1038/s41563-020-00842-y [ ] [Shining more light on photoinduced segregation pp6 - 7]( Masaru Kuno doi:10.1038/s41563-020-00830-2 [ ] [Patterning MOFs at smaller scales pp8 - 9]( Marco Faustini doi:10.1038/s41563-020-00837-9 [] Review Articles [ ] [Metal halide perovskites for light-emitting diodes pp10 - 21]( Xiao-Ke Liu, Weidong Xu, Sai Bai, Yizheng Jin, Jianpu Wang et al. doi:10.1038/s41563-020-0784-7 The development of perovskite emitters, their use in light-emitting devices, and the challenges in enhancing the efficiency and stability, as well as reducing the potential toxicity of this technology are discussed in this Review. [] Letters [ ] [Recapitulating macro-scale tissue self-organization through organoid bioprinting pp22 - 29]( Jonathan A. Brassard, Mike Nikolaev, Tania Hübscher, Moritz Hofer & Matthias P. Lutolf doi:10.1038/s41563-020-00803-5 A 3D bioprinting approach has been developed to facilitate tissue morphogenesis by directly depositing organoid-forming stem cells in an extracellular matrix, with the ability to generate intestinal epithelia and branched vascular tissue constructs. [] Articles [ ] [Observation of fluctuation-mediated picosecond nucleation of a topological phase pp30 - 37]( Felix Büttner, Bastian Pfau, Marie Böttcher, Michael Schneider, Giuseppe Mercurio et al. doi:10.1038/s41563-020-00807-1 Time-resolved X-ray scattering is utilized to demonstrate an ultrafast 300 ps topological phase transition to a skyrmionic phase. This transition is enabled by the formation of a transient topological fluctuation state. [ ] [Engineering long spin coherence times of spin–orbit qubits in silicon pp38 - 42]( Takashi Kobayashi, Joseph Salfi, Cassandra Chua, Joost van der Heijden, Matthew G. House et al. doi:10.1038/s41563-020-0743-3 Spin qubits in systems with strong spin–orbit coupling can be electrically controlled, but are usually affected by short coherence times. Here, coherence times up to 10 ms are obtained for strain-engineered hole states bound to boron acceptors in silicon 28. [ ] [Direct observation of highly confined phonon polaritons in suspended monolayer hexagonal boron nitride pp43 - 48]( Ning Li, Xiangdong Guo, Xiaoxia Yang, Ruishi Qi, Tianyu Qiao et al. doi:10.1038/s41563-020-0763-z Monochromatic electron energy-loss spectroscopy enables the observation of highly confined and ultraslow hyperbolic phonon polaritons in suspended monolayer hexagonal boron nitride, expanding the potential of van der Waals materials for nanophotonic applications. [ ] [Preferential self-healing at grain boundaries in plasma-treated graphene pp49 - 54]( P. Vinchon, X. Glad, G. Robert Bigras, R. Martel & L. Stafford doi:10.1038/s41563-020-0738-0 Hyperspectral Raman imaging is used to visualize defects in polycrystalline graphene under ion bombardment, showing zero-dimensional and one-dimensional defects in grains and at grain boundaries, respectively, and preferential self-healing at the grain boundaries. [ ] [Light-induced reversal of ion segregation in mixed-halide perovskites pp55 - 61]( Wenxin Mao, Christopher R. Hall, Stefano Bernardi, Yi-Bing Cheng, Asaph Widmer-Cooper et al. doi:10.1038/s41563-020-00826-y Depending on its intensity, light irradiation is shown to induce not only segregation but also remixing of halide ions in mixed-halide perovskites, enabling in situ and localized control of chemical composition and optical bandgap in these materials. [ ] [Atomic-resolution electron microscopy of nanoscale local structure in lead-based relaxor ferroelectrics pp62 - 67]( Abinash Kumar, Jonathon N. Baker, Preston C. Bowes, Matthew J. Cabral, Shujun Zhang et al. doi:10.1038/s41563-020-0794-5 Relaxor ferroelectric systems exhibit exceptional electromechanical coupling that arises from a variety of nanoscale chemical ordering. Here, scanning transmission electron microscopy is used to quantify this structural complexity directly. [ ] [Predictive modelling of structure formation in semiconductor films produced by meniscus-guided coating pp68 - 75]( Jasper J. Michels, Ke Zhang, Philipp Wucher, Pierre M. Beaujuge, Wojciech Pisula et al. doi:10.1038/s41563-020-0760-2 Numerical simulations allow the prediction of domain morphology, from aligned to stretched and isotropic, in crystalline organic thin films formed by meniscus-guided coating, as a function of various deposition parameters. [ ] [Extra storage capacity in transition metal oxide lithium-ion batteries revealed by in situ magnetometry pp76 - 83]( Qiang Li, Hongsen Li, Qingtao Xia, Zhengqiang Hu, Yue Zhu et al. doi:10.1038/s41563-020-0756-y Although some transition metal oxide-based electrodes exhibit high storage capacities beyond theoretical values, the underlying physicochemical mechanism remains elusive. Surface capacitance on metal nanoparticles involving spin-polarized electrons is now shown to be consistent with a space charge mechanism. [ ] [Bulk fatigue induced by surface reconstruction in layered Ni-rich cathodes for Li-ion batteries pp84 - 92]( Chao Xu, Katharina Märker, Juhan Lee, Amoghavarsha Mahadevegowda, Philip J. Reeves et al. doi:10.1038/s41563-020-0767-8 Ni-rich layered cathode materials are promising for high-energy-density Li-ion batteries, but their degradation mechanisms are still poorly understood. A structure-driven mechanism with a lowered accessible state of charge after repetitive cycling is proposed for a typical NMC811 cathode. [ ] [Direct X-ray and electron-beam lithography of halogenated zeolitic imidazolate frameworks pp93 - 99]( Min Tu, Benzheng Xia, Dmitry E. Kravchenko, Max Lutz Tietze, Alexander John Cruz et al. doi:10.1038/s41563-020-00827-x The low dielectric constants and high porosity of MOFs are of interest for applications in electronics and sensors, but patterning techniques for these materials are in their infancy. Here, direct X-ray and electron-beam lithography at sub-50-nm resolution are reported that leave porosity and crystallinity intact. [ ] [Monolithic digital patterning of polydimethylsiloxane with successive laser pyrolysis pp100 - 107]( Jaeho Shin, Jihoon Ko, Seongmin Jeong, Phillip Won, Younggeun Lee et al. doi:10.1038/s41563-020-0769-6 A laser-based patterning method enables the fast fabrication of high-quality two- and three-dimensional features in polydimethylsiloxane for microfluidics and biomedical applications. [ ] [Wnt-modified materials mediate asymmetric stem cell division to direct human osteogenic tissue formation for bone repair pp108 - 118]( Yoshihisa Okuchi, Joshua Reeves, Soon Seng Ng, Daniel H. Doro, Sergi Junyent et al. doi:10.1038/s41563-020-0786-5 Wnt3a protein has been immobilized on a biocompatible bandage and is now shown to induce oriented asymmetric cell division of human skeletal stem cells and can also promote bone tissue repair in vivo. [] Amendments & Corrections [ ] [Author Correction: Predictive modelling of structure formation in semiconductor films produced by meniscus-guided coating p119]( Jasper J. Michels, Ke Zhang, Philipp Wucher, Pierre M. Beaujuge, Wojciech Pisula et al. doi:10.1038/s41563-020-00810-6 [ ] [Publisher Correction: Predictive modelling of structure formation in semiconductor films produced by meniscus-guided coating p119]( Jasper J. Michels, Ke Zhang, Philipp Wucher, Pierre M. Beaujuge, Wojciech Pisula et al. doi:10.1038/s41563-020-00832-0 [ ] [Publisher Correction: Predictive modelling of structure formation in semiconductor films produced by meniscus-guided coating p119]( Jasper J. Michels, Ke Zhang, Philipp Wucher, Pierre M. Beaujuge, Wojciech Pisula et al. doi:10.1038/s41563-020-00843-x [nature events]( Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. 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