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Nature Materials contents: January 2017 Volume 16 Number 1 pp 1 - 153

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TABLE OF CONTENTS

January 2017 Volume 16, Issue 1

Editorials
News and Views
Perspective
Reviews
Letters
Articles
Retractions
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Insight

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Materials for sustainable energy
Energy demand from developed and developing countries continues to grow, together with concerns on the detrimental effects that an energy economy based on fossil fuels has on the environment. This Insight discusses the latest advances in materials science that may boost the transition to more sustainable energy systems.

Materials for sustainable energy

Editorials

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Dealing with data   p1
doi:10.1038/nmat4841
Nature Materials now requests that all original research articles contain a Data Availability Statement declaring the accessibility of the data and where it can be found.

News and Views

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Topological insulators: Engineered heterostructures   pp3 - 4
Thorsten Hesjedal and Yulin Chen
doi:10.1038/nmat4835
The combination of topological properties and magnetic order can lead to new quantum states and exotic physical phenomena. In particular, the coupling between topological insulators and antiferromagnets enables magnetic and electronic structural engineering.

See also: Article by He et al.

Perovskite photovoltaics: Slow recombination unveiled   pp4 - 6
Jacques-E. Moser
doi:10.1038/nmat4796
One of the most salient features of hybrid lead halide perovskites is the extended lifetime of their photogenerated charge carriers. This property has now been shown experimentally to originate from a slow, thermally activated recombination process.

See also: Article by Hutter et al.

Material Witness: A recipe for growth   p6
Philip Ball
doi:10.1038/nmat4839

Porous catalysts: The platinum rush   pp7 - 8
Krijn P. de Jong and Jovana Zečević
doi:10.1038/nmat4832
Ultra-stable and catalytic platinum atoms and clusters have been obtained by entrapment within a zeolite framework during its formation.

See also: Article by Liu et al.

Elastic sheets: Cracks by design   pp8 - 9
Ken Kamrin
doi:10.1038/nmat4831
Stretching elastic membranes over curved substrates can be used to guide and control crack paths.

See also: Letter by Mitchell et al.

Thermal transport: Harmony with superatoms   pp10 - 11
Longji Cui, Edgar Meyhofer and Pramod Reddy
doi:10.1038/nmat4830
The thermal conductivities of superatom crystals have significant contributions from extended phonon states and show a remarkable temperature dependence due to orientational ordering.

See also: Letter by Ong et al.

Metasurface lens: Shrinking the camera size   pp11 - 12
Cheng Sun
doi:10.1038/nmat4833
A miniaturized camera has been developed by integrating a planar metasurface lens doublet with a CMOS image sensor. The metasurface lens doublet corrects the monochromatic aberration and thus delivers nearly diffraction-limited image quality over a wide field of view.

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Editorial

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Materials for sustainable energy   p15
Vincent Dusastre and Luigi Martiradonna
doi:10.1038/nmat4838

Perspective

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The path towards sustainable energy   pp16 - 22
Steven Chu, Yi Cui and Nian Liu
doi:10.1038/nmat4834
This Perspective provides an overview of the contributions of materials science to a sustainable energy future, and discusses possible regulatory paths to support this transition.

Reviews

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Energy conversion approaches and materials for high-efficiency photovoltaics   pp23 - 34
Martin A. Green and Stephen P. Bremner
doi:10.1038/nmat4676
This Review describes the sunlight conversion strategies [mdash] and their technological implementations [mdash] that are currently being investigated to realize solar cells with efficiencies beyond the Shockley-Queisser limit.

Photovoltaic concepts inspired by coherence effects in photosynthetic systems   pp35 - 44
Jean-Luc Brédas, Edward H. Sargent and Gregory D. Scholes
doi:10.1038/nmat4767
Lessons learned from coherent phenomena in biological photosynthetic systems may be useful to improve energy- and charge-transport in disordered materials. This Review describes coherence and its potential beneficial effects in photovoltaics.

Sustainability and in situ monitoring in battery development   pp45 - 56
C. P. Grey and J. M. Tarascon
doi:10.1038/nmat4777
Significant progress in battery technology is crucial to ensure a transition towards a carbon-neutral society. Recent advances in both sustainability and operando techniques together with remaining challenges and possible solutions are now reviewed.

Energy and fuels from electrochemical interfaces   pp57 - 69
Vojislav R. Stamenkovic, Dusan Strmcnik, Pietro P. Lopes and Nenad M. Markovic
doi:10.1038/nmat4738
Advances in electrocatalysis at interfaces are vital for driving technological innovations related to energy. New materials developments for efficient hydrogen and oxygen production in electrolysers and in fuel cells are described.

Materials for solar fuels and chemicals   pp70 - 81
Joseph H. Montoya, Linsey C. Seitz, Pongkarn Chakthranont, Aleksandra Vojvodic, Thomas F. Jaramillo and Jens K. Nørskov
doi:10.1038/nmat4778
Converting sunlight into fuels is attractive for energy storage and photoelectrocatalytic technologies. Scientific challenges related to developing suitable photoabsorbers, efficient catalysts and understanding their interfaces are now reviewed.

Letters

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Orientational order controls crystalline and amorphous thermal transport in superatomic crystals   pp83 - 88
Wee-Liat Ong, Evan S. O'Brien, Patrick S. M. Dougherty, Daniel W. Paley, C. Fred Higgs III, Alan J. H. McGaughey, Jonathan A. Malen and Xavier Roy
doi:10.1038/nmat4739
Room-temperature thermal conductivities in superatomic crystals are found to be proportional to the sound speed, while their behaviour can switch between amorphous- or crystalline-like, depending on temperature and the nature of superatoms used.

See also: News and Views by Cui et al.

Fracture in sheets draped on curved surfaces   pp89 - 93
Noah P. Mitchell, Vinzenz Koning, Vincenzo Vitelli and William T. M. Irvine
doi:10.1038/nmat4733
Curvature in elastic sheets can be used to control material failure and guide the paths of cracks.

See also: News and Views by Kamrin

Articles

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Tailoring exchange couplings in magnetic topological-insulator/antiferromagnet heterostructures   pp94 - 100
Qing Lin He, Xufeng Kou, Alexander J. Grutter, Gen Yin, Lei Pan, Xiaoyu Che, Yuxiang Liu, Tianxiao Nie, Bin Zhang, Steven M. Disseler, Brian J. Kirby, William Ratcliff II, Qiming Shao, Koichi Murata, Xiaodan Zhu, Guoqiang Yu, Yabin Fan, Mohammad Montazeri, Xiaodong Han, Julie A. Borchers and Kang L. Wang
doi:10.1038/nmat4783
Heterostructures formed by the magnetic topological insulator Cr-doped (Bi,Sb)2Te and the antiferromagnet CrSb are shown to exhibit emergent interfacial magnetic phenomena that can be tuned with the heterostructure geometry.

See also: News and Views by Hesjedal & Chen

Memristors with diffusive dynamics as synaptic emulators for neuromorphic computing   pp101 - 108
Zhongrui Wang, Saumil Joshi, Sergey E. Savel?ev, Hao Jiang, Rivu Midya, Peng Lin, Miao Hu, Ning Ge, John Paul Strachan, Zhiyong Li, Qing Wu, Mark Barnell, Geng-Lin Li, Huolin L. Xin, R. Stanley Williams, Qiangfei Xia and J. Joshua Yang
doi:10.1038/nmat4756
Calcium ions play a vital role in enabling synaptic plasticity in biological systems. The dynamic behaviour of these ions has now been emulated in a metal atom diffusion-based memristor.

Carrier generation and electronic properties of a single-component pure organic metal   pp109 - 114
Yuka Kobayashi, Takeshi Terauchi, Satoshi Sumi and Yoshitaka Matsushita
doi:10.1038/nmat4768
The electronic properties of bulk solids composed of zwitterionic tetrathiafulvalene-extended dicarboxylate radicals are investigated, showing highly conducting metallic behaviour in single-component molecular systems having only s and p electrons.

Direct-indirect character of the bandgap in methylammonium lead iodide perovskite   pp115 - 120
Eline M. Hutter, María C. Gélvez-Rueda, Anna Osherov, Vladimir Bulović, Ferdinand C. Grozema, Samuel D. Stranks and Tom J. Savenije
doi:10.1038/nmat4765
Time-resolved photo-conductance and microwave conductance investigations reveal that methylammonium lead iodide perovskites have an indirect bandgap at temperatures relevant to photovoltaic applications.

See also: News and Views by Moser

Nanoscale structural oscillations in perovskite oxides induced by oxygen evolution   pp121 - 126
Binghong Han, Kelsey A. Stoerzinger, Vasiliki Tileli, Andrew D. Gamalski, Eric A. Stach and Yang Shao-Horn
doi:10.1038/nmat4764
Understanding interactions between water and oxides is crucial for energy storage and photocatalysis. The combined effect of water and electron irradiation on perovskite catalysts results in structural oscillation triggered by gaseous bubbles.

Localized dielectric breakdown and antireflection coating in metal-oxide-semiconductor photoelectrodes   pp127 - 131
Li Ji, Hsien-Yi Hsu, Xiaohan Li, Kai Huang, Ye Zhang, Jack C. Lee, Allen J. Bard and Edward T. Yu
doi:10.1038/nmat4801
Silicon-based photoelectrodes are attractive for solar fuel production, but suffer from vulnerability to corrosion. Using dielectric breakdown, a generic approach to improve the performance of metal-oxide semiconductor photoelectrodes is proposed.

Generation of subnanometric platinum with high stability during transformation of a 2D zeolite into 3D   pp132 - 138
Lichen Liu, Urbano Díaz, Raul Arenal, Giovanni Agostini, Patricia Concepción and Avelino Corma
doi:10.1038/nmat4757
Encapsulation of single-atom and particulate gold within growing zeolite frameworks generates active catalysts with exceptionally high thermal stability.

See also: News and Views by de Jong & Zecevic

Porous microwells for geometry-selective, large-scale microparticle arrays   pp139 - 146
Jae Jung Kim, Ki Wan Bong, Eduardo Reátegui, Daniel Irimia and Patrick S. Doyle
doi:10.1038/nmat4747
A porous microwell platform that generates large-scale arrays of microparticles with varying shape, size and modulus with high specificity shows applicability in anti-counterfeiting and cell-screening applications.

Complete prevention of blood loss with self-sealing haemostatic needles   pp147 - 152
Mikyung Shin, Sung-Gurl Park, Byung-Chang Oh, Keumyeon Kim, Seongyeon Jo, Moon Sue Lee, Seok Song Oh, Seon-Hui Hong, Eui-Cheol Shin, Ki-Suk Kim, Sun-Woong Kang and Haeshin Lee
doi:10.1038/nmat4758
The penetration of tissues with syringe needles is a common clinical practice that inevitably results in blood loss at the puncture site. This blood loss can now be eliminated using self-sealing haemostatic needles.

Retractions

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Retraction: Fast and long-range triplet exciton diffusion in metal-organic frameworks for photon upconversion at ultralow excitation power   p153
Prasenjit Mahato, Angelo Monguzzi, Nobuhiro Yanai, Teppei Yamada and Nobuo Kimizuka
doi:10.1038/nmat4827

See also: Article by Mahato et al.

Retraction: Framing upconversion materials   p153
Yoan C. Simon and Christoph Weder
doi:10.1038/nmat4828

See also: News and Views by Simon & Weder

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