Showing papers by "Shuit-Tong Lee published in 2022"
TL;DR: Inspired by pangolins' combination of rigid scales and soft flesh, a bionic structure design for self-healing flexible perovskite light-emitting diodes was proposed in this paper .
Abstract: Despite tremendous developments in the luminescene performance of perovskite light-emitting diodes (PeLEDs), the brittle nature of perovskite crystals and their poor crystallinity on flexible substrates inevitably lead to inferior performance. Inspired by pangolins' combination of rigid scales and soft flesh, we propose a bionic structure design for self-healing flexible PeLEDs by employing a polymer-assisted crystal regulation method with a soft elastomer of diphenylmethane diisocyanate polyurethane (MDI-PU). The crystallinity and flexural strain resistance of such perovskite films on plastics with silver-nanowire-based flexible transparent electrodes are highly enhanced. The detrimental cracks induced during repeated deformation can be effectively self-healed under heat treatment via intramolecular/intermolecular hydrogen bonds with MDI-PU. Upon collective optimization of the perovskite films and device architecture, the blue-emitting flexible PeLEDs can achieve a record external quantum efficiency of 13.5% and high resistance to flexural strain, which retain 87.8 and 80.7% of their initial efficiency after repeated bending and twisting operations of 2000 cycles, respectively.
5 citations
TL;DR: In this article , a triboelectric nanogenerator (TENG) was used to suppress in vitro cell migration of cancer cells and to alleviate in vivo early tumor metastasis to the lung tissue.
5 citations
TL;DR: The development of single-atom-catalysts (SACs) has been an important goal in catalysis research over the last years as mentioned in this paper , despite great efforts devoted to new synthetic methods for producing atomically dispersed metal.
Abstract: The development of single-atom-catalysts (SACs) has been an important goal in catalysis research over the last years. Despite great efforts devoted to new synthetic methods for producing atomically dispersed metal...
1 citations
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TL;DR: Kotov et al. as discussed by the authors presented a survey of the state of the art in the field of cognitive science, focusing on the role of gender, race, and race relations.
Abstract: ADVERTISEMENT RETURN TO ARTICLES ASAPPREVEditorialNEXTTanks and TruthNicholas A. Kotov*Nicholas A. Kotov*Email: [email protected]More by Nicholas A. Kotovhttps://orcid.org/0000-0002-6864-5804, Deji AkinwandeDeji AkinwandeMore by Deji Akinwandehttps://orcid.org/0000-0001-7133-5586, C. Jeffrey BrinkerC. Jeffrey BrinkerMore by C. Jeffrey Brinkerhttps://orcid.org/0000-0002-7145-9324, Jillian M. BuriakJillian M. BuriakMore by Jillian M. Buriakhttps://orcid.org/0000-0002-9567-4328, Warren C. W. ChanWarren C. W. ChanMore by Warren C. W. Chanhttps://orcid.org/0000-0001-5435-4785, Xiaodong ChenXiaodong ChenMore by Xiaodong Chenhttps://orcid.org/0000-0002-3312-1664, Manish ChhowallaManish ChhowallaMore by Manish Chhowallahttps://orcid.org/0000-0002-8183-4044, William ChuehWilliam ChuehMore by William Chuehhttps://orcid.org/0000-0002-7066-3470, Sharon C. GlotzerSharon C. GlotzerMore by Sharon C. Glotzerhttps://orcid.org/0000-0002-7197-0085, Yury GogotsiYury GogotsiMore by Yury Gogotsihttps://orcid.org/0000-0001-9423-4032, Mark C. HersamMark C. HersamMore by Mark C. Hersamhttps://orcid.org/0000-0003-4120-1426, Dean HoDean HoMore by Dean Hohttps://orcid.org/0000-0002-7337-296X, Tony HuTony HuMore by Tony Huhttps://orcid.org/0000-0002-5166-4937, Ali JaveyAli JaveyMore by Ali Javeyhttps://orcid.org/0000-0001-7214-7931, Cherie R. KaganCherie R. KaganMore by Cherie R. Kaganhttps://orcid.org/0000-0001-6540-2009, Kazunori KataokaKazunori KataokaMore by Kazunori Kataokahttps://orcid.org/0000-0002-8591-413X, Il-Doo KimIl-Doo KimMore by Il-Doo Kimhttps://orcid.org/0000-0002-9970-2218, Shuit-Tong LeeShuit-Tong LeeMore by Shuit-Tong Leehttps://orcid.org/0000-0003-1238-9802, Young Hee LeeYoung Hee LeeMore by Young Hee Leehttps://orcid.org/0000-0001-7403-8157, Luis M. Liz-MarzánLuis M. Liz-MarzánMore by Luis M. Liz-Marzánhttps://orcid.org/0000-0002-6647-1353, Jill E. MillstoneJill E. MillstoneMore by Jill E. Millstonehttps://orcid.org/0000-0002-9499-5744, Paul MulvaneyPaul MulvaneyMore by Paul Mulvaneyhttps://orcid.org/0000-0002-8007-3247, Andre E. NelAndre E. NelMore by Andre E. Nelhttps://orcid.org/0000-0002-5232-4686, Peter NordlanderPeter NordlanderMore by Peter Nordlanderhttps://orcid.org/0000-0002-1633-2937, Wolfgang J. ParakWolfgang J. ParakMore by Wolfgang J. Parakhttps://orcid.org/0000-0003-1672-6650, Reginald M. PennerReginald M. PennerMore by Reginald M. Pennerhttps://orcid.org/0000-0003-2831-3028, Andrey L. RogachAndrey L. RogachMore by Andrey L. Rogachhttps://orcid.org/0000-0002-8263-8141, Mathieu SalanneMathieu SalanneMore by Mathieu Salannehttps://orcid.org/0000-0002-1753-491X, Raymond E. SchaakRaymond E. SchaakMore by Raymond E. Schaakhttps://orcid.org/0000-0002-7468-8181, Ajay K. SoodAjay K. SoodMore by Ajay K. Soodhttps://orcid.org/0000-0002-4157-361X, Molly StevensMolly StevensMore by Molly Stevenshttps://orcid.org/0000-0002-7335-266X, Vladimir TsukrukVladimir TsukrukMore by Vladimir Tsukrukhttps://orcid.org/0000-0001-5489-0967, Andrew T. S. WeeAndrew T. S. WeeMore by Andrew T. S. Weehttps://orcid.org/0000-0002-5828-4312, Ilja VoetsIlja VoetsMore by Ilja Voetshttps://orcid.org/0000-0003-3543-4821, Tanja WeilTanja WeilMore by Tanja Weilhttps://orcid.org/0000-0002-5906-7205, and Paul S. WeissPaul S. WeissMore by Paul S. Weisshttps://orcid.org/0000-0001-5527-6248Cite this: ACS Nano 2022, XXXX, XXX, XXX-XXXPublication Date (Web):March 22, 2022Publication History Published online22 March 2022https://doi.org/10.1021/acsnano.2c02602Published 2022 by American Chemical SocietyRIGHTS & PERMISSIONSArticle Views7246Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (998 KB) Get e-Alerts Get e-Alerts
TL;DR: In this article , photoelectron spectroscopy (PES) plays a vital role in the advancement of metal halide perovskites (MHPs) based optoelectronic devices.
Abstract: Modifications of the surface and interfacial properties of metal halide perovskites (MHPs) have become pivotal strategies in designing high-performance photovoltaics and light-emitting diodes. Particularly, photoelectron spectroscopy (PES) plays a vital role in the advancement of MHP-based optoelectronic devices. Herein, we review the recent studies of PESs for perovskite devices. We first give an overview of the principles of PES and related techniques. Different properties of halide perovskite material unveiled by PES are then discussed, including elemental compositions, chemical states, electronic band structures, interfaces of MHPs and functional layers, ions distribution, and thermal- and moisture-induced degradation mechanism. We also revisit some of the issues when carrying out PES measurements on MHPs, such as irradiation and ambient effects and the uncertainty in determining band edge. Based on these findings, we foresee that PES techniques combined with advanced optical and electron microscopies will become increasingly important to correlate the molecular dynamics with the interfacial and chemical properties of MHP materials and devices.