In recent years, we have experienced extreme climate changes due to the global warming, continuously impacting and changing our daily lives. To build a sustainable environment and society, various energy technologies have been developed and introduced. Among them, energy harvesting, converting ambient environmental energy into electrical energy, has emerged as one of the promising technologies for a variety of energy applications. In particular, a photo (electro) catalytic water splitting system, coupled with emerging energy harvesting technology, has demonstrated high device performance, demonstrating its great social impact for the development of the new water splitting system. In this review article, we introduce and discuss in detail the emerging energy-harvesting technology for photo (electro) catalytic water splitting applications. The article includes fundamentals of photocatalytic and electrocatalytic water splitting and water splitting applications coupled with the emerging energy-harvesting technologies using piezoelectric, piezo-phototronic, pyroelectric, triboelectric, and photovoltaic effects. We comprehensively deal with different mechanisms in water splitting processes with respect to the energy harvesting processes and their effect on the water splitting systems. Lastly, new opportunities in energy harvesting-assisted water splitting are introduced together with future research directions that need to be investigated for further development of new types of water splitting systems.

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Emerging Energy Harvesting Technology for Electro/Photo-Catalytic Water Splitting Application

Herein, we report a novel organic-inorganic hybrid CuI halide PyCs3Cu2Br6 (Py: pyridinium), where pyridinium and cesium ions coexist. We successfully develop a novel strategy for fabricating turn-on responsive materials. PyCs3Cu2Br6 has a higher single-crystal symmetry (no. 191) than its all-inorganic counterpart Cs3Cu2Br5 (no. 62), and the incorporation of organic pyridinium varied the coordination environment of CuI. PyCs3Cu2Br6 formed a triangle planar structure with solely 3-coordinated CuI ions, which quenched its luminescence. However, PyCs3Cu2Br6 presented a hexagonal channel structure, which enabled it with turn-on response upon mechanical force, heat, moisture, and amine vapor. Such structure offered channels for active molecules to diffuse and interact with pyridiniums, leading to the stimuli-triggered phase change to highly emissive Cs3Cu2Br5. To our best knowledge, for the first time, we discover a novel 3-coordinated organic-inorganic hybrid CuI halide with turn-on response to external stimuli. We believe that our study will contribute to expanding the landscape of smart stimulus-responsive materials and lay the foundation for their wide applications.

Solely 3-Coordinated Organic-Inorganic Hybrid Copper(I) Halide: Hexagonal Channel Structure, Turn-On Response to Mechanical Force, Moisture, and Amine.

ADVERTISEMENT RETURN TO ISSUEPREVEnergy FocusNEXTPackage Development for Reliability Testing of PerovskitesE. Ashley Gaulding*E. Ashley GauldingNational Renewable Energy Laboratory, Golden, Colorado 80401, United States*[email protected]More by E. Ashley Gauldinghttps://orcid.org/0000-0002-1772-1993, Amy E. LouksAmy E. LouksNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Amy E. Loukshttps://orcid.org/0000-0001-7797-4493, Mengjin YangMengjin YangNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Mengjin Yang, Robert TirawatRobert TirawatNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Robert Tirawat, Mickey J. WilsonMickey J. WilsonNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Mickey J. Wilson, Liam K. ShawLiam K. ShawNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Liam K. Shaw, Timothy J SilvermanTimothy J SilvermanNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Timothy J Silverman, Joseph M. LutherJoseph M. LutherNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Joseph M. Lutherhttps://orcid.org/0000-0002-4054-8244, Axel F. PalmstromAxel F. PalmstromNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesMore by Axel F. Palmstromhttps://orcid.org/0000-0001-6633-209X, Joseph J. BerryJoseph J. BerryNational Renewable Energy Laboratory, Golden, Colorado 80401, United StatesRenewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, United StatesDepartment of Physics, University of Colorado, Boulder, Colorado 80309, United StatesMore by Joseph J. Berryhttps://orcid.org/0000-0003-3874-3582, and Matthew O. Reese*Matthew O. ReeseNational Renewable Energy Laboratory, Golden, Colorado 80401, United States*[email protected]More by Matthew O. Reesehttps://orcid.org/0000-0001-9927-5984Cite this: ACS Energy Lett. 2022, 7, 8, 2641–2645Publication Date (Web):July 19, 2022Publication History Received18 May 2022Accepted7 July 2022Published online19 July 2022Published inissue 12 August 2022https://doi.org/10.1021/acsenergylett.2c01168Copyright © Published 2022 by American Chemical SocietyRIGHTS & PERMISSIONSArticle Views936Altmetric-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 (3 MB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Amorphous materials,Metals,Perovskites,Solar cells,Testing and assessment Get e-Alerts 

Bhaskaran Manoj

Papers

Energy Spotlight: Advances in Metal Halide Perovskites, Photoactivated Catalysis, and Organic Photovoltaics