Nano Energy最新文献

{"title":"Electrically controlled interface state distribution for improving pyro-phototronic photosensing from UV to NIR","authors":"Meng Zhu ,&nbsp;Xianchun Qiu ,&nbsp;Jiayao Liu ,&nbsp;Qing Chang ,&nbsp;Zhaona Wang ,&nbsp;Zhong Lin Wang","doi":"10.1016/j.nanoen.2025.110900","DOIUrl":"10.1016/j.nanoen.2025.110900","url":null,"abstract":"<div><div>The interface states (ISs) in oxide semiconductor have long been considered a key factor for limiting the photoresponse performance of oxide-based photodetectors (PDs). Here, the IS distribution is electrically tailored and proposed as an effective strategy to improve the performances of the ZnO-based PDs. A graded IS (GIS) with tunable gradient is achieved through an electric field-assisted UV irradiation to significantly enhance the built-in electric field of the heterojunction. The corresponding steady (transient) photocurrent responsivity of the heterojunction as a self-powered PD is thus improved by a maximal factor of 1540% (237%) relative to the junction under the initial IS condition for 320–1120 nm waves. More importantly, the tunable IS distribution can modulate pyro-phototronic effect. This work provides an effective approach to manipulate IS distribution in oxide semiconductor and a potential perspective on using disorder IS to design the self-powered PDs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110900"},"PeriodicalIF":16.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial lattice relaxation and S-Zn charge channel engineering in Cd₀.₉Zn₀.₁S/ZnWO₄ S-scheme heterojunction photocatalysts","authors":"Zeshuang Kong ,&nbsp;Dafeng Zhang ,&nbsp;Junchang Liu ,&nbsp;Xue-Yang Ji ,&nbsp;Peiqing Cai ,&nbsp;Xipeng Pu ,&nbsp;Huayang Zhang","doi":"10.1016/j.nanoen.2025.110890","DOIUrl":"10.1016/j.nanoen.2025.110890","url":null,"abstract":"<div><div>In the S-scheme heterojunction, photogenerated electrons from the oxidation photocatalyst recombine with holes from the reduction photocatalyst, enhancing redox potential and boosting photocatalytic activity. However, the recombination mechanism at these interfaces remains largely unexplored. In this study, we design a Cd_0.9Zn_0.1S/ZnWO₄ (CZS/ZWO) S-scheme heterojunction model guided by theoretical predictions. Remarkably, a nano-tetrapod-shaped CZS/ZWO S-scheme heterojunction is synthesized via a simple solvothermal and ultrasonic self-assembly method, achieving hydrogen evolution performance under visible light irradiation for 3 h that is 3.69 times higher than CZS alone and 4.63 times higher than ZWO alone. Further theoretical calculations simulate the charge transfer mechanism, electron density localization, and transition states in the photocatalytic hydrogen evolution reaction. Finally, integrating theoretical and experimental data, an S-Zn channel is proposed within the CZS/ZWO S-scheme heterojunction, clarifying the electron transfer pathway. This study provides a detailed understanding of charge transfer dynamics in S-scheme heterojunction.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110890"},"PeriodicalIF":16.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intra or extracellular: The location of piezotronic effect determines the polarization regulation of macrophages for enhanced wound healing","authors":"Bojun Xie ,&nbsp;Shan Lu ,&nbsp;Liang Wang ,&nbsp;Zanmei Zhou ,&nbsp;Wenhan Wang ,&nbsp;Chengming Lou ,&nbsp;Yao Zhang ,&nbsp;Zihan Yuan ,&nbsp;Haofan Liu ,&nbsp;Laisen Cui ,&nbsp;Jichuan Qiu ,&nbsp;Hong Liu ,&nbsp;Baojin Ma","doi":"10.1016/j.nanoen.2025.110893","DOIUrl":"10.1016/j.nanoen.2025.110893","url":null,"abstract":"<div><div>With the rapid advancement of interdisciplinary research, regulating cell fate with the piezotronic effect of nanomaterials has garnered significant attention. Ultrasound-driven piezotronic effect has been shown to induce polarization of macrophages, but conflicting findings in some studies have highlighted uncertainties in the polarization regulation mechanisms. These ambiguities pose challenges for applying the piezotronic effect to regulate the immuno-microenvironment in macrophage-related therapies. Commonly, the natural endocytic capability of macrophages was found to facilitate the internalization of barium titanate nanoparticles (BTO NPs), resulting in the production of reactive oxygen species (ROS) and the induction of macrophage M1 polarization in the acidic lysosomal environment under ultrasound treatment. To prevent NPs internalization and enable surface interactions, in this study, BTO NPs were assembled onto graphene oxide nanosheets to form hybrid piezoelectric nanosheets (GO-BTO NSs). The internalized BTO NPs did promote the M1 polarization of macrophage. In contrast, GO-BTO NSs attached to the macrophage surface generated piezoelectric potential through piezotronic effect under ultrasonic stimulation, leading to M2 polarization of macrophage, meaning that BTO NPs exhibited distinct polarization regulation abilities under intracellular and extracellular stimulation modes. The mechanism underlying ultrasound-driven M2 polarization induced by GO-BTO NSs was further identified, with the Akt2-IRF5/NF-κB signaling pathway being inhibited via piezotronic effect by GO-BTO NSs adhered to the macrophage surface, thereby inducing M2 polarization. Animal experiments demonstrated that ultrasound irradiation combined with GO-BTO NSs significantly accelerated wound healing. This study elucidates the distinct regulatory mechanisms of macrophage polarization under different locations of piezotronic effect, providing a theoretical foundation and practical methodology for the application of piezoelectric materials in cell fate regulation and cell therapy.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110893"},"PeriodicalIF":16.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanocatalytic H2O2 production using ferroelectric KSr2Nb3Ta2O15 nanorods","authors":"Zuheng Jin ,&nbsp;Manli Lu ,&nbsp;Chuan Jiang ,&nbsp;Sha Wu ,&nbsp;Liupan Tang ,&nbsp;Changzheng Hu ,&nbsp;Laijun Liu ,&nbsp;Liang Fang ,&nbsp;Zhenxiang Cheng","doi":"10.1016/j.nanoen.2025.110892","DOIUrl":"10.1016/j.nanoen.2025.110892","url":null,"abstract":"<div><div>Traditional methods of hydrogen peroxide (H₂O₂) production, such as the anthraquinone process and electrolysis, face challenges including high costs, significant energy consumption, and strict electrode requirements. Therefore, this study proposes a mechanocatalytic approach for H₂O₂ production. By utilizing the molten-salt method, KSr₂Nb₃Ta₂O₁₅ ferroelectric nanorods were synthesized to achieve a mechanocatalytic H₂O₂ yield of 117 μmol/L/h in a glass beaker equipped with a PTFE disk. Remarkably, substituting the glass beaker with a ZrO₂ ball mill for the mechanocatalytic experiments significantly increased the H₂O₂ yield to 820 μmol/L/h. The Piezoelectric Force Microscopy (PFM), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) analysis revealed that the inherent electric field of ferroelectric materials and the abundant specific surface area on the KSr₂Nb₃Ta₂O₁₅ nanorod surface enhance electron transfer during the mechanocatalytic process. Rotating Ring-Disk Electrode tests indicated that the mechanocatalytic one-step two-electron pathway dominates H₂O₂ generation through mechanocatalysis with an 85 % selectivity rate, surpassing conventional two-step one-electron pathway efficiency in oxygen reduction reaction. Output charge testing of vertical contact separation mode triboelectric nanogenerator (CS-TENG) determines the ability of a material to gain or lose electrons during friction processes. This breakthrough presents a novel and efficient method for H₂O₂ production via mechanocatalysis. Using the molten-salt method, KSr₂Nb₃Ta₂O₁₅ ferroelectric nanorods were synthesized, resulting in a mechanocatalytic H₂O₂ yield of 820 μmol/L/h in a ball mill jar. Comprehensive analysis utilizing PFM, SEM, BET, RRDE, CS-TENG and by comparing the effect of mechanocatalysis with different materials demonstrated that the built-in electric field of ferroelectric materials enhance electron transfer in the mechanocatalytic process. This breakthrough presents a novel and efficient method for H₂O₂ production through mechanocatalysis.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110892"},"PeriodicalIF":16.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogel flexible photodetector based on polarization of free water molecules and image sensor application","authors":"Yujiao Bo ,&nbsp;Minhui Yang ,&nbsp;Zhihao Qian ,&nbsp;Hongjia Bi ,&nbsp;Shisheng Lin","doi":"10.1016/j.nanoen.2025.110889","DOIUrl":"10.1016/j.nanoen.2025.110889","url":null,"abstract":"<div><div>Flexible photodetectors are promising for a wide range of applications, including wearable devices, medical equipment, smart homes, energy harvesting, and storage. However, conventional manufacturing methods often face challenges such as complexity, high costs, and poor stability. In this study, we present a flexible photodetector based on a hydrogel design, achieving a responsivity of 4.32 mA/W and a detectivity of 9.09 × 10⁹ Jones at 360 nm under zero bias, with rapid response times characterized by a rise time of 45.6 ms and a fall time of 34.5 ms. The core working principle of the Gr-PEDOT/Alg(Fe³⁺)-TiO₂ photodetector relies on the photo-polarization of water molecules in the hydrogel, which is driven by the built-in electric field formed at the interface between semiconductors with different Fermi levels under illumination, enabling self-powered UV detection. The device features excellent mechanical stretchability and high optical transparency, making it well-suited for applications such as wearable electronics, portable cameras, and transparent or semi-transparent devices. To explore its potential further, we fabricate an 8 × 8 flexible photodetector array capable of capturing images under bending conditions and detecting incident light signals from multiple angles. By integrating the images captured by the 8 × 8 flexible photodetector array with convolutional neural networks (CNNs), the system achieves precise image recognition even under bending conditions, demonstrating promising applications in artificial intelligence and machine learning. This work highlights the significant advantages of flexible Gr-PEDOT/Alg(Fe³⁺)-TiO₂ photodetectors and provides valuable insights into their application in optoelectronic imaging and artificial intelligence technologies.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110889"},"PeriodicalIF":16.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The artificial structure-evolution-design of multiphase-composite films for dielectric energy storage","authors":"Qiuyang Han ,&nbsp;Jian Wang ,&nbsp;Tian-Yi Hu ,&nbsp;Shao-Dong Cheng ,&nbsp;Yan Wang ,&nbsp;Rui Lu ,&nbsp;Yi-qin Lu ,&nbsp;Weijie Fu ,&nbsp;Sitong An ,&nbsp;Tingzhi Duan ,&nbsp;Yupeng Liu ,&nbsp;Zhonghui Shen ,&nbsp;Chunrui Ma ,&nbsp;Ming Liu","doi":"10.1016/j.nanoen.2025.110891","DOIUrl":"10.1016/j.nanoen.2025.110891","url":null,"abstract":"<div><div>Dielectric capacitors with the ultra-high power density and ultra-fast charge-discharge speeds attracted great interest in electronic devices. Multiphase composite engineering is emerged as a favorable strategy to boost the energy performance of dielectric capacitors. However, the details of composite film growth mechanisms, and how microstructure influences the energy storage performance are still ambiguous. Herein, the BaHf_0.17Ti_0.83O₃-25 %HfO₂ (BHT17–25HfO₂) multiphase composition films with various microstructure are obtained to shed light on the modulation mechanism of growth temperature on the microstructure and energy storage performance. The lamellar and fibrous HfO₂ distributed in BHT17–25HfO₂ films not only can form the insulated networks to hinder large injection of electric carriers for strengthening the <em>E</em>_<em>b</em>, but also can attenuate the interaction of polar structure and suppress the polar structure contributions to lessen the hysteresis loss. The reduced hysteresis loss and enhanced <em>E</em>_<em>b</em> of lamellar and fibrous mixed structure BHT17–25HfO₂ films synergistically improve energy storage performance with the <em>W</em>_<em>re</em> of 122.35 J·cm⁻³ and <em>η</em> of ∼ 80 % at room temperature. Besides, an excellent thermal stability in the wide temperature range from −100 °C to 325 °C (<em>W</em>_<em>re</em>: 84.82 J·cm⁻³, <em>η ∼</em> 80 %) and the outstanding high temperature antifatigue properties also are achieved. Our work offers a new avenue toward microstructure design of dielectric film capacitors for superior energy storage performance and establishes the relationship between microstructure and properties of dielectric composite films for energy storage performance.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"139 ","pages":"Article 110891"},"PeriodicalIF":16.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relay catalyst for accelerating lithium polysulfide conversion kinetics and long-life lithium sulfur batteries","authors":"Teng Deng ,&nbsp;Zhengqian Jin ,&nbsp;Li Jin ,&nbsp;Hanfei Luo ,&nbsp;Jia Wang ,&nbsp;Juntao Gao ,&nbsp;Yitong Zhang ,&nbsp;Yatao Liu ,&nbsp;Jianan Wang ,&nbsp;R. Vasant Kumar ,&nbsp;Guodong Feng ,&nbsp;Juan Wang ,&nbsp;Shujiang Ding ,&nbsp;Kai Xi","doi":"10.1016/j.nanoen.2025.110896","DOIUrl":"10.1016/j.nanoen.2025.110896","url":null,"abstract":"<div><div>Lithium-sulfur (Li-S) batteries are regarded as promising candidates for next-generation secondary batteries due to their high energy density and cost-effectiveness. However, the sluggish conversion kinetics of lithium polysulfide (LiPSs) intermediates during charge/discharge cycles severely hinder their practical application. Herein, we propose a relay catalysts design strategy to accelerate the sulfur reduction conversion process in Li-S batteries. To validate this approach, we synthesized a faujasite-type molecular sieve (FAU)-Bi₂O₃ relay catalyst, in which each component is tailored to optimize distinct stages of the catalytic process. FAU, with its abundant microporous structure, effectively captures and channels LiPSs toward the Bi₂O₃ interface, where catalytic sites promote rapid conversion and enhance reaction kinetics. Furthermore, integrating the FAU-Bi₂O₃ catalyst onto a commercial separator not only boosts electrochemical performance but also imparts excellent flame retardancy. Li-S batteries with FAU-Bi₂O₃ achieve a high specific capacity of 846.8 mAh g⁻¹ after 100 cycles, while the pouch cell maintains a capacity retention of 81.4 % after 70 cycles. This work presents a rational catalyst design strategy, offering a new pathway for advancing Li-S battery technology toward practical implementation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110896"},"PeriodicalIF":16.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recyclable, freeze -resistant, harsh-environment capable self-healing bio-based polyurethane elastomers for self-powering intelligent transport systems","authors":"Hong Wang ,&nbsp;Linman Zhang ,&nbsp;Qufu Wei ,&nbsp;Mingjie Gao ,&nbsp;Weijun Yang ,&nbsp;Pengwu Xu ,&nbsp;Deyu Niu ,&nbsp;Chaoyu Chen ,&nbsp;Pibo Ma ,&nbsp;Piming Ma","doi":"10.1016/j.nanoen.2025.110888","DOIUrl":"10.1016/j.nanoen.2025.110888","url":null,"abstract":"<div><div>Triboelectric nanogenerator-based self-powered transportation systems have the potential to be key components of future smart cities, contributing significantly to sustainable urban development and intelligent management. However, their durability and stability in challenging environments, such as low temperatures, remain unresolved. In this work, a bio-based monomer with a bis-alkane side-chain structure was introduced to develop a transparent, freeze-resistant, and reprocessable bio-based polyurethane elastomer (PLBEM). Notably, the elastomer demonstrated excellent self-healing properties under low temperatures (−30 °C), supercooled saline (−30 °C, 30 % NaCl), as well as strong acid and alkali conditions, with healing efficiency of 83 %, 80 %, 85 %, and 80 %, respectively. Experiments and molecular simulations showed that the excellent low-temperature self-healing properties of the elastomers were attributed to the bis-alkane side-chain structure that provided abundant van der Waals forces and self-plasticization for the materials. Additionally, the flexible triboelectric nanogenerator (LB-TENG), using PLBEM as the friction layer, achieved a 95 % voltage recovery rate after self-healing at −30 °C. The LB-TENG-based intelligent transportation system can not only power traffic signals but also alert drivers to prevent accidents from fatigue driving. Therefore, the all-weather, self-powered traffic monitoring system is expected to enhance safety and security for transportation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110888"},"PeriodicalIF":16.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anion-cation synergy enables reversible seven-electron redox chemistry for energetic aqueous zinc-iodine batteries","authors":"Xixian Li ,&nbsp;Wenyu Xu ,&nbsp;Jianze Feng ,&nbsp;Ziqiang Liu ,&nbsp;Na Jiang ,&nbsp;Lihang Ye ,&nbsp;Yuliang Gao ,&nbsp;Yi Ma ,&nbsp;Zui Tao ,&nbsp;Yanting Duan ,&nbsp;Xinliang Li ,&nbsp;Qi Yang ,&nbsp;Jieshan Qiu","doi":"10.1016/j.nanoen.2025.110884","DOIUrl":"10.1016/j.nanoen.2025.110884","url":null,"abstract":"<div><div>Aqueous zinc-iodine batteries have drawn intensive attention from battery community due to the high theoretical capacity and low cost. However, the traditional two-electron-transfer and four-electron-transfer mechanisms suffer from low capacity and inferior stability due to the sluggish kinetics and low I^– utilization. Herein, we design a seven-electron-transfer Zn||I₂ battery via the anion-cation synergistic electrode reaction in layered BiI₃. The three-electron-transfer of Bi⁰/Bi³⁺, together with the four-electron-transfer of I^–/I⁺, endows Zn||BiI₃ battery with high capacity (∼370 mAh g^–1 at 1 A g^–1) and high energy density. The chemical confinement of I^– by Bi³⁺ and the effective conversion of I^– in BiI₃ eradicate side reactions and enable I^– with high utilization rate. Zn||BiI₃ battery delivers a good cycling stability (10,000 cycles) and a high coulombic efficiency. This work presents an anion-cation synergy method for stabilizing Zn||I₂ batteries and other conversion-type batteries such as Zn||Br₂, Li||I₂, and Li||Br₂.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110884"},"PeriodicalIF":16.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Piezotronic transistor based on strained GaN with high hole mobility","authors":"Changming Xie ,&nbsp;Yaming Zhang ,&nbsp;Jiaheng Nie ,&nbsp;Ruhao Liu ,&nbsp;Xin Cui ,&nbsp;Nian Liu ,&nbsp;Yan Zhang","doi":"10.1016/j.nanoen.2025.110883","DOIUrl":"10.1016/j.nanoen.2025.110883","url":null,"abstract":"<div><div>GaN <em>p</em>-channel transistors with high hole mobility are important for power electronic and high-frequency microwave applications. Here we propose that strain-induced polarization increases hole mobility through biaxial tensile strain and scattering suppression. Under applied strain, the valence band structure and piezoelectric scattering should be regulated by the piezotronic effect. We find that the piezotronic effect can increase hole mobility by 110 %. Hole mobility reaches up to 140 cm²/Vs at room temperature and 2700 cm²/Vs at 100 K.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 ","pages":"Article 110883"},"PeriodicalIF":16.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}