1
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Chen R, Craven GT. The effect of temperature oscillations on energy storage rectification in harmonic systems. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:405201. [PMID: 38988144 DOI: 10.1088/1361-648x/ad5d40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024]
Abstract
Rectification, the preferential transport of a current in one direction through a system, has garnered significant attention in molecules because of its importance for controlling thermal and electronic currents at the nanoscale. Here, we report the presence of energy storage rectification effects in a molecular chain. This phenomenon is generated by subjecting a harmonic molecular chain to an oscillating temperature gradient and showing that the energy absorption rate of the system depends on the direction of the gradient. We examine how the energy storage rectification ratios in the chain are affected by the oscillating gradient, asymmetry in the chain, and the system parameters. We find that energy storage rectification can be observed in harmonic lattice structures with time-dependent temperatures and that, correspondingly, anharmonicity is not required to generate this rectification mechanism in such systems.
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Affiliation(s)
- Renai Chen
- Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, NM, United States of America
| | - Galen T Craven
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, United States of America
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2
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Liu C, Li Y, Tang Z, Gao KG, Xie J, Tao J, Yao ZS. High-performance Pyroelectric Property Accompanied by Spin Crossover in a Single Crystal of Fe(II) Complex. Angew Chem Int Ed Engl 2024; 63:e202405514. [PMID: 38584585 DOI: 10.1002/anie.202405514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/09/2024]
Abstract
Pyroelectric materials hold significant potential for energy harvesting, sensing, and imaging applications. However, achieving high-performance pyroelectricity across a wide temperature range near room temperature remains a significant challenge. Herein, we demonstrate a single crystal of Fe(II) spin-crossover compound shows remarkable pyroelectric properties accompanied by a thermally controlled spin transition. In this material, the uniaxial alignment of polar molecules results in a polarization of the lattice. As the molecular geometry is modulated during a gradual spin transition, the polar axis experiences a colossal thermal expansion with a coefficient of 796×10-6 K-1. Consequently, the material's polarization undergoes significant modulation as a secondary pyroelectric effect. The considerable shift in polarization (pyroelectric coefficient, p=3.7-22 nC K-1cm-2), coupled with a low dielectric constant (ϵ'=4.4-5.4) over a remarkably wide temperature range of 298 to 400 K, suggests this material is a high-performance pyroelectric. The demonstration of pyroelectricity combined with magnetic switching in this study will inspire further investigations in the field of molecular electronics and magnetism.
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Affiliation(s)
- Chengdong Liu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liang-xiang Campus, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Yun Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Zheng Tang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liang-xiang Campus, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Kai-Ge Gao
- College of Physical Science and Technology Yangzhou, Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Jing Xie
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liang-xiang Campus, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liang-xiang Campus, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Zi-Shuo Yao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liang-xiang Campus, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
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3
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Chen R, Gibson T, Craven GT. Molecular heat transport across a time-periodic temperature gradient. J Chem Phys 2024; 160:194305. [PMID: 38767255 DOI: 10.1063/5.0204819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/23/2024] [Indexed: 05/22/2024] Open
Abstract
The time-periodic modulation of a temperature gradient can alter the heat transport properties of a physical system. Oscillating thermal gradients give rise to behaviors such as modified thermal conductivity and controllable time-delayed energy storage that are not present in a system with static temperatures. Here, we examine how the heat transport properties of a molecular lattice model are affected by an oscillating temperature gradient. We use analytical analysis and molecular dynamics simulations to investigate the vibrational heat flow in a molecular lattice system consisting of a chain of particles connected to two heat baths at different temperatures, where the temperature difference between baths is oscillating in time. We derive expressions for heat currents in this system using a stochastic energetics framework and a nonequilibrium Green's function approach that is modified to treat the nonstationary average energy fluxes. We find that emergent energy storage, energy release, and thermal conductance mechanisms induced by the temperature oscillations can be controlled by varying the frequency, waveform, and amplitude of the oscillating gradient. The developed theoretical approach provides a general framework to describe how vibrational heat transmission through a molecular lattice is affected by temperature gradient oscillations.
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Affiliation(s)
- Renai Chen
- Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Tammie Gibson
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Galen T Craven
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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4
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Aravindhan A, Glinsek S, Girod S, Blazquez Martinez A, Granzow T, Kovacova V, Defay E. Large pyroelectric energy conversion in lead scandium tantalate thin films. Heliyon 2024; 10:e30430. [PMID: 38726117 PMCID: PMC11079096 DOI: 10.1016/j.heliyon.2024.e30430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/23/2024] [Accepted: 04/25/2024] [Indexed: 05/12/2024] Open
Abstract
Non-linear pyroelectric energy harvesting using ferroelectric thin films exhibits high energy conversion, primarily due to their large breakdown field compared to bulks. Here, we report the pyroelectric energy conversion potential of lead scandium tantalate, Pb(Sc1/2Ta1/2)O3 (PST) thin film fabricated on a c-sapphire substrate using chemical solution deposition. To enable the application of high electric field and to assess the pyroelectric energy conversion performance, interdigitated electrodes were deposited on the PST thin film. A maximum harvested energy density of 9.1 J cm-3 per cycle was deduced from polarization measurements in films undergoing an Olsen cycle between 0 °C and 150 °C when the electric field was varied between 50 and 1500 kV/cm. Furthermore, PST thin films can reach up to 27 % of Carnot efficiency for a temperature interval of 10 K between 30 °C and 40 °C. This study highlights the significance of PST thin films for electro-thermal energy harvesting and promising opportunities for enhancing the conversion efficiency and power density using thin films or thin film multi-layer capacitors in the future for thermal energy harvesting.
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Affiliation(s)
- Ashwath Aravindhan
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
- University of Luxembourg, 2 Avenue de L’Université, Esch-sur-Alzette L-4365, Luxembourg
| | - Sebastjan Glinsek
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
| | - Stephanie Girod
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
| | - Alfredo Blazquez Martinez
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
- University of Luxembourg, 2 Avenue de L’Université, Esch-sur-Alzette L-4365, Luxembourg
| | - Torsten Granzow
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
| | - Veronika Kovacova
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
| | - Emmanuel Defay
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue Du Brill, L-4422 Belvaux, Luxembourg
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Patel M, Park HH, Bhatnagar P, Kumar N, Lee J, Kim J. Transparent integrated pyroelectric-photovoltaic structure for photo-thermo hybrid power generation. Nat Commun 2024; 15:3466. [PMID: 38658539 DOI: 10.1038/s41467-024-47483-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/02/2024] [Indexed: 04/26/2024] Open
Abstract
Thermal losses in photoelectric devices limit their energy conversion efficiency, and cyclic input of energy coupled with pyroelectricity can overcome this limit. Here, incorporating a pyroelectric absorber into a photovoltaic heterostructure device enables efficient electricity generation by leveraging spontaneous polarization based on pulsed light-induced thermal changes. The proposed pyroelectric-photovoltaic device outperforms traditional photovoltaic devices by 2.5 times due to the long-range electric field that occurs under pulse illumination. Optimization of parameters such as pulse frequency, scan speed, and illumination wavelength enhances power harvesting, as demonstrated by a power conversion efficiency of 11.9% and an incident-photon-to-current conversion efficiency of 200% under optimized conditions. This breakthrough enables reconfigurable electrostatic devices and presents an opportunity to accelerate technology that surpasses conventional limits in energy generation.
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Affiliation(s)
- Malkeshkumar Patel
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of South Korea
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd., Yeonsu, Incheon, 22012, Republic of South Korea
| | - Hyeong-Ho Park
- Optical Device Lab., Device Technology Division, Korea Advanced Nanofab Center (KANC), 109 Gwanggyo-ro, Yeongtong-gu, Suwon, 16229, Republic of South Korea
| | - Priyanka Bhatnagar
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of South Korea
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd., Yeonsu, Incheon, 22012, Republic of South Korea
| | - Naveen Kumar
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of South Korea
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd., Yeonsu, Incheon, 22012, Republic of South Korea
| | - Junsik Lee
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of South Korea
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd., Yeonsu, Incheon, 22012, Republic of South Korea
| | - Joondong Kim
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of South Korea.
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd., Yeonsu, Incheon, 22012, Republic of South Korea.
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6
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Li A, Yang J, He Y, Wen J, Jiang X. Advancing piezoelectric 2D nanomaterials for applications in drug delivery systems and therapeutic approaches. NANOSCALE HORIZONS 2024; 9:365-383. [PMID: 38230559 DOI: 10.1039/d3nh00578j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Precision drug delivery and multimodal synergistic therapy are crucial in treating diverse ailments, such as cancer, tissue damage, and degenerative diseases. Electrodes that emit electric pulses have proven effective in enhancing molecule release and permeability in drug delivery systems. Moreover, the physiological electrical microenvironment plays a vital role in regulating biological functions and triggering action potentials in neural and muscular tissues. Due to their unique noncentrosymmetric structures, many 2D materials exhibit outstanding piezoelectric performance, generating positive and negative charges under mechanical forces. This ability facilitates precise drug targeting and ensures high stimulus responsiveness, thereby controlling cellular destinies. Additionally, the abundant active sites within piezoelectric 2D materials facilitate efficient catalysis through piezochemical coupling, offering multimodal synergistic therapeutic strategies. However, the full potential of piezoelectric 2D nanomaterials in drug delivery system design remains underexplored due to research gaps. In this context, the current applications of piezoelectric 2D materials in disease management are summarized in this review, and the development of drug delivery systems influenced by these materials is forecast.
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Affiliation(s)
- Anshuo Li
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, No. 639 Zhizaoju Road, Shanghai 200011, China.
- State Key Laboratory of Metastable Materials Science and Technology, Nanobiotechnology Key Lab of Hebei Province, Applying Chemistry Key Lab of Hebei Province, Yanshan University, Qinhuangdao, 066004, China
| | - Jiawei Yang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, No. 639 Zhizaoju Road, Shanghai 200011, China.
| | - Yuchu He
- State Key Laboratory of Metastable Materials Science and Technology, Nanobiotechnology Key Lab of Hebei Province, Applying Chemistry Key Lab of Hebei Province, Yanshan University, Qinhuangdao, 066004, China
| | - Jin Wen
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, No. 639 Zhizaoju Road, Shanghai 200011, China.
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, No. 639 Zhizaoju Road, Shanghai 200011, China.
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7
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Zhang C, Yuan W, Zhang B, Yang J, Hu Y, He L, Zhao X, Li X, Wang ZL, Wang J. A Rotating Triboelectric Nanogenerator Driven by Bidirectional Swing for Water Wave Energy Harvesting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304412. [PMID: 37649192 DOI: 10.1002/smll.202304412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/21/2023] [Indexed: 09/01/2023]
Abstract
Due to the simple installation and convenient maintenance, the floating water wave energy harvesting devices have significant economic advantages. Mass power density is the most important index to evaluate the advancement of floating wave energy harvesting devices. Herein, a self-adaptive rotating triboelectric nanogenerator (SR-TENG) with a compound pendulum and a functional gear-set is provided for wave energy harvesting. First, a compound pendulum structure with a low center of gravity and high moment of inertia is obtained by the geometric design and mechanical study. Besides, compared with the previous triboelectric nanogenerator with one-way clutch, SR-TENG can harvest twice the kinetic energy utilization through the functional gear-set. Importantly, depending on the structure design, the SR-TENG obtains the average mass power density of 45.18 mW kg-1 under low frequency driving conditions, which is about 10 times the reference electromagnetic generator with a similar structure and size. This result shows that the SR-TENG has a significant advantage in small water wave energy harvesting. These findings provide an important example of the floating water wave energy harvesting devices.
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Affiliation(s)
- Chuguo Zhang
- School of Electronic and Information Engineering, Beijing Jiaotong University, 100044, Beijing, P. R. China
| | - Wei Yuan
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Baofeng Zhang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Jiayi Yang
- School of Electronic and Information Engineering, Beijing Jiaotong University, 100044, Beijing, P. R. China
| | - Yuexiao Hu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
| | - Lixia He
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - XueJiao Zhao
- College of Mathematics and Physics, Beijing University of Chemical Technology, 100029, Beijing, P. R. China
| | - Xiuhan Li
- School of Electronic and Information Engineering, Beijing Jiaotong University, 100044, Beijing, P. R. China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jie Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083, Beijing, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
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8
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Li J, Torelló A, Kovacova V, Prah U, Aravindhan A, Granzow T, Usui T, Hirose S, Defay E. High cooling performance in a double-loop electrocaloric heat pump. Science 2023; 382:801-805. [PMID: 37972174 DOI: 10.1126/science.adi5477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/22/2023] [Indexed: 11/19/2023]
Abstract
Cooling through solid-state electrocaloric materials is an attractive replacement for vapor compression. Despite recent efforts, devices that are potentially commercially competitive have not been developed. We present an electrocaloric cooler with a maximum temperature span of 20.9 kelvin and a maximum cooling power of 4.2 watts under the moderate applied electric field of 10 volts per micrometer without any observed breakdown. Moreover, the maximum coefficient of performance, even taking into account energy expended on fluid pumping, reaches 64% of Carnot's efficiency as long as energy is properly recovered. We believe that this demonstration shows electrocaloric cooling to be a very promising alternative to vapor compression cooling.
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Affiliation(s)
- Junning Li
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
| | - Alvar Torelló
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
| | - Veronika Kovacova
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
| | - Uros Prah
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
| | - Ashwath Aravindhan
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
- University of Luxembourg, Esch-sur-Alzette L-4365, Luxembourg
| | - Torsten Granzow
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
| | - Tomoyasu Usui
- Murata Manufacturing Co., Nagaokakyo, Kyoto 617-8555, Japan
| | - Sakyo Hirose
- Murata Manufacturing Co., Nagaokakyo, Kyoto 617-8555, Japan
| | - Emmanuel Defay
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Belvaux L-4422, Luxembourg
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9
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Chen R, Gibson T, Craven GT. Energy transport between heat baths with oscillating temperatures. Phys Rev E 2023; 108:024148. [PMID: 37723696 DOI: 10.1103/physreve.108.024148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/11/2023] [Indexed: 09/20/2023]
Abstract
Energy transport is a fundamental physical process that plays a prominent role in the function and performance of myriad systems and technologies. Recent experimental measurements have shown that subjecting a macroscale system to a time-periodic temperature gradient can increase thermal conductivity in comparison to a static temperature gradient. Here, we theoretically examine this mechanism in a nanoscale model by applying a stochastic Langevin framework to describe the energy transport properties of a particle connecting two heat baths with different temperatures, where the temperature difference between baths is oscillating in time. Analytical expressions for the energy flux of each heat bath and for the system itself are derived for the case of a free particle and a particle in a harmonic potential. We find that dynamical effects in the energy flux induced by temperature oscillations give rise to complex energy transport hysteresis effects. The presented results suggest that applying time-periodic temperature modulations is a potential route to control energy storage and release in molecular devices and nanosystems.
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Affiliation(s)
- Renai Chen
- Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Tammie Gibson
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Galen T Craven
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Zhou Y, Ding T, Guo J, Xu G, Cheng M, Zhang C, Wang XQ, Lu W, Ong WL, Li J, He J, Qiu CW, Ho GW. Giant polarization ripple in transverse pyroelectricity. Nat Commun 2023; 14:426. [PMID: 36702841 PMCID: PMC9879950 DOI: 10.1038/s41467-023-35900-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
Pyroelectricity originates from spontaneous polarization variation, promising in omnipresent non-static thermodynamic energy harvesting. Particularly, changing spontaneous polarization via out-of-plane uniform heat perturbations has been shown in solar pyroelectrics. However, these approaches present unequivocal inefficiency due to spatially coupled low temperature change and duration along the longitudinal direction. Here we demonstrate unconventional giant polarization ripples in transverse pyroelectrics, without increasing the total energy input, into electricity with an efficiency of 5-fold of conventional longitudinal counterparts. The non-uniform graded temperature variation arises from decoupled heat localization and propagation, leading to anomalous in-plane heat perturbation (29-fold) and enhanced thermal disequilibrium effects. This in turn triggers an augmented polarization ripple, fundamentally enabling unprecedented electricity generation performance. Notably, the device generates a power density of 38 mW m-2 at 1 sun illumination, which is competitive with solar thermoelectrics and ferrophotovoltaics. Our findings provide a viable paradigm, not only for universal practical pyroelectric heat harvesting but for flexible manipulation of transverse heat transfer towards sustainable energy harvesting and management.
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Affiliation(s)
- Yi Zhou
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore ,grid.263817.90000 0004 1773 1790Department of Physics, Southern University of Science and Technology, Shenzhen, China
| | - Tianpeng Ding
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore ,grid.54549.390000 0004 0369 4060School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China
| | - Jun Guo
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Guoqiang Xu
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Mingqiang Cheng
- grid.263817.90000 0004 1773 1790Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Chen Zhang
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Xiao-Qiao Wang
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Wanheng Lu
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Wei Li Ong
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Jiangyu Li
- grid.263817.90000 0004 1773 1790Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Jiaqing He
- grid.263817.90000 0004 1773 1790Department of Physics, Southern University of Science and Technology, Shenzhen, China
| | - Cheng-Wei Qiu
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Ghim Wei Ho
- grid.4280.e0000 0001 2180 6431Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore ,grid.4280.e0000 0001 2180 6431Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore ,grid.185448.40000 0004 0637 0221Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
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