DataVXACS Energy LettersPaper
journal article·2025-07-11

Electrochromic Harvester for All-Day Energy Savings in Buildings

Wenhao Wang, Long Wang, Shenghao Jin, Tao Xie, Gu Liu, Zhen Meng, Tonghao Liu, Yina Cui, Haoyuan Zhang, Weiguo Liu, Zhenyi Gao, Boxiang Wang, Liuying Wang

ACS Energy Letters· Volume 10· Issue 7
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Source abstract

Abstract

Technologies that can simultaneously capture energy from outer space and the sun have garnered extensive interest in recent years. However, the utilization of these two energy sources is challenged by their conflicting spectral requirements, making it difficult to capture both in a single device or material. Here, an adaptive energy harvester coupling photothermal conversion and radiative cooling utilizing photonic metastructure electrodes in conjunction with reversible metal electrodeposition technology for all-day continuous energy harnessing is reported. The harvester demonstrates sustained bistability for over 30 days with large emissivity contrast (0.82 at 3–5 μm, 0.66 at 7.5–13 μm), robust environmental durability, and scalability (100 cm 2 ) for switching between heating and cooling states. World-wide energy simulations show that it can significantly reduce energy consumption in buildings by up to 21.4%, amounting to a savings of 95.8 GJ year-round. This harvester offers a promising method to utilize heat source and heat sink, sun and outer space, to improve sustainability and reduce carbon foot print of the Earth.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Thermal Radiation and Cooling Technologies · Transition Metal Oxide Nanomaterials · Urban Heat Island Mitigation

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Zhijian Laboratory

Rocket Force University of Engineering

2020 X-Lab, Shanghai Institute of Microsystem and Information Technology

Chinese Academy of Sciences

Institute of Engineering Thermophysics, School of Mechanical Engineering

Shanghai Jiao Tong University

Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering

National University of Defense Technology

Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices

Air Force Engineering University

Funding

Natural Science Basic Research Program of Shaanxi Province · Education Department of Shaanxi Province · Science and Technology Commission of Shanghai Municipality · National Natural Science Foundation of China · Sanqin Talents Special Support Program for Youth Top-notch Talents · Special Support Program for High-level Talents of Shaanxi Province · Shaanxi Outstanding Youth Talent Support Program for Universities · Innovation and Entrepreneurship Team of Special Support Program for “Sanqin” Talent

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