{"title":"Perovskite-based electrocatalysts: A new frontier in water splitting for sustainable hydrogen production","authors":"Iqra Hamdani , Pinky Sagar , Faisal Shahzad , Vinay Gupta , Gobind Das","doi":"10.1016/j.nanoen.2026.111721","DOIUrl":"10.1016/j.nanoen.2026.111721","url":null,"abstract":"<div><div>Perovskite materials have emerged as one of the most promising classes of coordination compounds towards electrocatalytic water splitting. The structural flexibility, tunable electronic configurations, and rich surface redox chemistry make such materials potential candidates for electrochemical hydrogen generation. This review presents an extensive investigation of recent advancements in understanding and design of perovskite-based hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalysts. Importance is emphasized on correlating crystal field effects, metal-oxygen covalency, and e<sub>g</sub> orbital occupancy to catalytic activity, offering mechanistic insights into reaction energetics and rate-determining steps. Progress in theoretical descriptors and computational screening are critically reviewed towards predictive catalyst design. Besides mechanistic considerations, this review discusses efficiency benchmarks, stability targets, and techno-economic factors defining translational potential of perovskites-based water splitting systems. A dedicated section critically evaluates commercialization pathways, SWOT analysis and the realistic R&D priorities for accessing benchmark activity and durability against industry standards, while highlighting opportunities and challenges for bridging lab to commercial-scale deployment gap. By integrating fundamental coordination chemistry with practical feasibility, this review aims to deliver both conceptual clarity and a roadmap for accelerating perovskite-based electrocatalysis towards impactful and sustained hydrogen generation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111721"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145995971","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-10DOI: 10.1016/j.nanoen.2026.111711
Xiaolei Zhang , Yue An , Wenying Yu , Yingge Zhang , Na Tian , Jun Li , Hongwei Huang
{"title":"Beyond charge separation: Unraveling the synergy of piezoelectric polarization and structure engineering in carbon nitride for thermodynamically boosted H2O2 production","authors":"Xiaolei Zhang , Yue An , Wenying Yu , Yingge Zhang , Na Tian , Jun Li , Hongwei Huang","doi":"10.1016/j.nanoen.2026.111711","DOIUrl":"10.1016/j.nanoen.2026.111711","url":null,"abstract":"<div><div>The prevailing paradigm in piezo-photocatalysis primarily focuses on leveraging piezoelectric polarization fields to enhance the separation of photogenerated charges. Herein, we transcend this conventional approach by demonstrating that piezoelectric polarization can synergize with precisely engineered molecular structures to regulate both the reaction kinetics and thermodynamics for hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production by using the cyano-functionalized and K<sup>+</sup> -intercalated carbon nitride (MCN) with enhanced intrinsic dipole moment and piezoelectric response as model catalyst. Combined experimental characterizations and DFT calculations unveil that the piezoelectric field not only facilitates charge separation but, more importantly, cooperates with the electron-withdrawing cyano groups to boost O<sub>2</sub> adsorption, elongate the O<img>O bond, and lower the energy barrier of the rate-determining step. Consequently, MCN achieves an exceptional piezo-photocatalytic H<sub>2</sub>O<sub>2</sub> production rate of 8.03 mmol/g/h. Furthermore, the as-formed flexible MCN/PVDF-HFP film demonstrates practical potential under outdoor sunlight with mechanical agitation, enabling efficient H<sub>2</sub>O<sub>2</sub> accumulation, which is successfully utilized for the rapid degradation of organic pollutants. This work introduces a novel concept of synergistic polarization and molecular engineering, paving the way for advanced catalyst design in sustainable chemical synthesis.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111711"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957111","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-15DOI: 10.1016/j.nanoen.2026.111726
Dongguo Tan , Yunfei Peng , Jiaxi Zhou , Kai Wang , Shengtao Zhang , Qiang Wang
{"title":"Nonlinear dynamics and energy harvesting of a pendulum-inspired bistable triboelectric vibration energy harvester","authors":"Dongguo Tan , Yunfei Peng , Jiaxi Zhou , Kai Wang , Shengtao Zhang , Qiang Wang","doi":"10.1016/j.nanoen.2026.111726","DOIUrl":"10.1016/j.nanoen.2026.111726","url":null,"abstract":"<div><div>Efficiently collecting low-frequency vibration energy has been a significant challenge in the aera of energy harvesting. In response to this issue, a pendulum-inspired bistable triboelectric vibration energy harvester (PBTVEH) is presented in this paper. Its ingenuity lies in the nonlinear mechanical design, which enables effective harvesting of low-frequency vibration energy. First, the design thought of the PBTVEH is described and its theoretical model is established. Next, by solving this model, the nonlinear dynamic features and energy harvesting performance of the PBTVEH are explored in depth to reveal the interaction between its dynamical and electrical behaviors. Besides, the impacts of parameters on the mechanical and electrical characteristics of the PBTVEH are examined. Finally, a prototype is developed, and the experimental platforms are constructed for performance testing and validation experiments, along with application demonstrations. The results indicate that during large-amplitude nonlinear dynamic responses (interwell oscillations), the PBTVEH delivers outstanding electrical performance, achieving a greatest power of 0.115 mW at 8 Hz. A large excitation amplitude, low damping coefficient, and appropriate design parameter (e.g., structural dimensions and stiffness) are conducive to improving the PBTVEH’s energy harvesting efficiency and widening its high-efficiency energy harvesting bandwidth. Capable of converting ambient vibration energy into electricity to power low-energy-consuming electronic devices and sensors, the PBTVEH holds considerable promise for structural health monitoring in civil infrastructures such as bridges.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111726"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974578","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-19DOI: 10.1016/j.nanoen.2026.111741
Xiaoyang Liang , Qiwei Chang , Liangliang Zhang , Anming Mo , Bingxin Yang , Xinzhou Lu , Ying Wang , Wei Dang , Takhir M. Razykov , Yingnan Guo , Yaohua Mai , Zhiqiang Li
{"title":"Potassium-induced trap state passivation for high-efficiency antimony selenide solar cells","authors":"Xiaoyang Liang , Qiwei Chang , Liangliang Zhang , Anming Mo , Bingxin Yang , Xinzhou Lu , Ying Wang , Wei Dang , Takhir M. Razykov , Yingnan Guo , Yaohua Mai , Zhiqiang Li","doi":"10.1016/j.nanoen.2026.111741","DOIUrl":"10.1016/j.nanoen.2026.111741","url":null,"abstract":"<div><div>Antimony selenide (Sb<sub>2</sub>Se<sub>3</sub>) thin-film solar cells have shown remarkable progress over the past decade, yet their power conversion efficiency (PCE) remains hindered by substantial bulk and interface defects. Herein, we develop a potassium fluoride post-deposition treatment (KF-PDT) strategy to concurrently passivate deep-level defects in the bulk and on the surface of Sb<sub>2</sub>Se<sub>3</sub> thin films. The incorporated potassium introduces shallow acceptor levels, enhancing p-type conductivity and increasing the free carrier density, while effectively suppressing deep-level defect concentrations and associated non-radiative recombination. Moreover, the KF-PDT process modulates surface states-particularly at grain boundaries-thereby improving charge carrier transport and collection. As a result, the KF-PDT-treated Sb<sub>2</sub>Se<sub>3</sub> solar cell achieves a champion efficiency of 10.10 %, corresponding to a 17 % relative improvement over the control device (8.64 %). This study presents a simple but robust approach for mitigating defects in Sb<sub>2</sub>Se<sub>3</sub> photovoltaics, accelerating their development toward commercial viability.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111741"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001581","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-19DOI: 10.1016/j.nanoen.2026.111734
Yingzhi Zhou , Jing Wang , Dongxiang Luo , Dehua Hu , Yonggang Min , Qifan Xue
{"title":"Corrigendum to “Recent progress of halide perovskites for thermoelectric application” [Nano Energy 94 (2022) 106949]","authors":"Yingzhi Zhou , Jing Wang , Dongxiang Luo , Dehua Hu , Yonggang Min , Qifan Xue","doi":"10.1016/j.nanoen.2026.111734","DOIUrl":"10.1016/j.nanoen.2026.111734","url":null,"abstract":"","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111734"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001585","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-15DOI: 10.1016/j.nanoen.2026.111727
Hang Yin , Xiaoye Li , Ao He , Baoying Dai , Heng Dong , Chuyi Zhou , Hao Zhang , Wenxuan Qie , Hao Wang , Rui Kong , Ziheng Pan , Yannan Xie
{"title":"Comprehensive band structure and surface reactivity engineering enable high-performance, enamel-safe dental piezo-photocatalysis","authors":"Hang Yin , Xiaoye Li , Ao He , Baoying Dai , Heng Dong , Chuyi Zhou , Hao Zhang , Wenxuan Qie , Hao Wang , Rui Kong , Ziheng Pan , Yannan Xie","doi":"10.1016/j.nanoen.2026.111727","DOIUrl":"10.1016/j.nanoen.2026.111727","url":null,"abstract":"<div><div>Efficient light absorption, rapid charge separation, and reduced surface reaction barriers are crucial for achieving high-performance photocatalysis. However, conventional strategies, such as bandgap engineering, internal electric field construction, and sensitization, typically regulate a single pathway, leading to unsystematic modulation and limited performance improvement. Herein, we present a robust and comprehensive strategy to systematically tailor the energy band structure, accelerate carrier dynamics, and lower surface activation barriers by coupling oxygen-vacancy engineering with the piezo-phototronic effect. BaTiO<sub>3</sub> (BTO) with piezoelectric and photocatalytic properties was selected as a model system, and controlled oxygen vacancies were introduced to form oxygen-vacancy-modulated BTO (BTO-OVX, X = 1, 2 or 3). Experimental results and theoretical simulations reveal that moderate oxygen vacancy concentration and piezoelectric field collectively narrow the bandgap, enhance spontaneous polarization, promote carrier separation, and strengthen O<sub>2</sub>/H<sub>2</sub>O adsorption and activation, and consequently boost piezo-photocatalytic activity of BTO-OV2. Remarkably, under combined light and ultrasonic excitation, BTO-OV2-based hydrogel achieved a three-order-of-magnitude reduction in <em>Fusobacterium nucleatum</em> viability and a thirty-eight-fold enhancement in teeth whitening efficiency, while preserving enamel integrity. This work elucidates the cooperative mechanism between oxygen-vacancy engineering and the piezo-phototronic effect in enhancing piezo-photocatalytic performance, and establishes a versatile framework for designing intelligent, sustainable materials for advanced dental healthcare.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111727"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974582","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-09DOI: 10.1016/j.nanoen.2026.111708
Yang Li , Wen Li , Mingyue Yuan, Jiahui Kou, Chunhua Lu
{"title":"Disentangling field enhancement and hot-electron extraction via Ni-mediated plasmonic cascade for efficient photocatalytic hydrogen generation from glucose","authors":"Yang Li , Wen Li , Mingyue Yuan, Jiahui Kou, Chunhua Lu","doi":"10.1016/j.nanoen.2026.111708","DOIUrl":"10.1016/j.nanoen.2026.111708","url":null,"abstract":"<div><div>Plasmon-enhanced photocatalysis revolutionizes solar energy conversion but faces material limitations. While Au dominates for its superior plasmonics, its high cost and poor catalytic activity hinder practical deployment. High-<span>d</span>-band Ni emerges as a promising alternative with intrinsic catalytic activity, broadband plasmonic response, and high work function, but suffers from strong <span>d</span>-electron correlations that compromise plasmonic efficiency and hot electron mobility. Moreover, while nanocavity integration can enhance optical confinement, it aggravates hot-electron localization, creating a fundamental dilemma for practical implementation. Herein, we present a Ni-mediated plasmonic cascade (Pt-TiO<sub>2</sub>-Ni/SiO<sub>2</sub>/Al) that tackles the hot-electron spatial localization challenge in traditional plasmonic nanocavities, significantly enhancing photocatalytic hydrogen evolution from glucose wastewater (47.68 mmol g<sup>−1</sup> h<sup>−1</sup>). The Ni/SiO<sub>2</sub>/Al Fabry-Pérot cavity provides strong optical confinement, while the upper Pt-TiO<sub>2</sub>-Ni structure enables robust <span>d</span>-band-matched Pt-Ni coupling, facilitating spatial extension of the resonant electromagnetic field toward the Pt-TiO<sub>2</sub> and enabling directional hot-electron injection from Ni to Pt-TiO<sub>2</sub> (verified by in-situ X-ray photoelectron spectroscopy). This yields a 6.4-times enhancement in visible-near-infrared light hydrogen evolution, outperforming conventional TiO<sub>2</sub>-Ni/SiO<sub>2</sub>/Al cavities in hot-electron utilization efficiency. This cascaded design harmonizes light-harvesting (68.3 % efficiency) with hot electron extraction exhibiting 3.7-times and 5.4-times hydrogen generation rates improvements over TiO<sub>2</sub>-Ni/SiO<sub>2</sub>/Al and Pt-TiO<sub>2</sub>, respectively, alongside extended carrier lifetime. This work presents a universal strategy to overcome the persistent trade-off between plasmonic light confinement and charge extraction in photocatalysis, ingeniously converting Ni’s inherent limitations into design merits to enable practical solar-driven waste-to-energy conversion.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111708"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957398","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-10DOI: 10.1016/j.nanoen.2026.111713
Xuzhi Zhang, Yunan Liu, Libo Men, Rong Xu
{"title":"Electrochemical-mechanical regulation of lithium deposition morphology in lithium metal batteries","authors":"Xuzhi Zhang, Yunan Liu, Libo Men, Rong Xu","doi":"10.1016/j.nanoen.2026.111713","DOIUrl":"10.1016/j.nanoen.2026.111713","url":null,"abstract":"<div><div>Lithium (Li) metal batteries offer exceptionally high energy density but their practical application is severely constrained by dendritic growth at the Li metal anode. Applying stack pressure has emerged as an effective strategy to mitigate dendrite formation; however, the underlying mechanisms governing the coupling between electrochemical deposition and mechanically induced deformation remain insufficiently understood, leaving optimal pressure conditions across different electrolytes largely determined by trial and error. Here, we develop an electro-chemo-mechanical model, supported by experimental validations, to elucidate how electrolyte properties and stack pressure jointly regulate Li deposition morphology. We show that dendrite-favorable electrolytes (e.g., low Li<sup>+</sup> diffusivity) promote irregular Li nucleation and growth, which concentrate local stresses under pressure and thereby undergo marked morphology improvement through pressure-induced creep. By contrast, electrolytes with inherently uniform deposition exhibit limited sensitivity to stack pressure. These findings establish a mechanistic framework for the competitive regulation of Li morphology by electrolyte chemistry and stack pressure, offering design principles for uniform Li plating in high-performance Li metal batteries.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111713"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957396","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-20DOI: 10.1016/j.nanoen.2026.111743
Meng Wang, Huangxuanyu Yang, Yewen Li, Zhaoyuan Ding, Ruiping Liu
{"title":"Sequential kinetic control of in-situ polymerization enables a graded solid electrolyte interphase for ultra-stable separator-free solid-state lithium metal batteries","authors":"Meng Wang, Huangxuanyu Yang, Yewen Li, Zhaoyuan Ding, Ruiping Liu","doi":"10.1016/j.nanoen.2026.111743","DOIUrl":"10.1016/j.nanoen.2026.111743","url":null,"abstract":"<div><div>Precise regulation of the solid electrolyte interphase (SEI) is paramount yet challenging for developing high-performance solid-state lithium-metal batteries. Herein, we report a stepwise, kinetically controlled <em>in-situ</em> polymerization strategy that decouples the construction of a mechanical scaffold from the formation of an ion-conducting network within a single, integrated process. This approach begins with rapid UV-curing to form a liquid crystal polymer scaffold, which effectively localizes electrolyte precursors at the electrode interface. This scaffold then guides a subsequent slow cationic polymerization. This spatiotemporal control over the reaction environment is key to forming a robust, inorganic-rich (LiF/Li<sub>2</sub>CO<sub>3</sub>) gradient SEI. The obtained separator-free semi-interpenetrating network electrolyte not only achieves desirable bulk properties, including high ionic conductivity (6.22 × 10⁻<sup>4</sup> S cm⁻<sup>1</sup>), a high Li<sup>+</sup> transference number (0.81), and a wide electrochemical window (5.1 V vs. Li/Li<sup>+</sup>), but also, and more critically, achieves substantially improved interfacial stability compared to its thermally polymerized counterpart. The tailored interface enables ultra-stable lithium plating/stripping, evidenced by Li||Li symmetric cells cycling for over 2480 h under low polarization. Furthermore, LiFePO<sub>4</sub>||Li full cells demonstrate outstanding cycling stability, retaining 97 % of their initial capacity after 340 cycles. This work establishes sequential, photopolymerization-driven kinetic control as a powerful paradigm for designing next-generation solid-state batteries with precisely engineered and highly stable interfaces.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111743"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146005811","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}
Nano EnergyPub Date : 2026-03-01Epub Date: 2026-01-16DOI: 10.1016/j.nanoen.2026.111714
Sangmi Park , Hye Seung Kim , Seongwook Chae , Ye In Kim , Min Ah Park , Jinkyu Yang , Heunjeong Lee , Shinuk Cho , Seung Geol Lee , Myoung Hoon Song
{"title":"Faceted growth of 1D perovskite layers via ionic liquid control for efficient and stable inverted perovskite solar cells","authors":"Sangmi Park , Hye Seung Kim , Seongwook Chae , Ye In Kim , Min Ah Park , Jinkyu Yang , Heunjeong Lee , Shinuk Cho , Seung Geol Lee , Myoung Hoon Song","doi":"10.1016/j.nanoen.2026.111714","DOIUrl":"10.1016/j.nanoen.2026.111714","url":null,"abstract":"<div><div>One-dimensional (1D) perovskite capping layers present a promising pathway to improve the efficiency and stability of perovskite solar cells (PeSCs), though their integration into inverted architectures remains limited. In this study, we reveal how the dissociation behavior of ionic liquids (ILs) governs the morphology, surface termination, and optoelectronic characteristics of 1D perovskite (EMIMPbI<sub>3</sub>) layers. Highly dissociative 1-ethyl-3-methylimidazolium (EMIM⁺)-based ILs enable the controlled growth of rod-shaped 1D EMIMPbI<sub>3</sub> with preferred (200) facet orientation. Density functional theory calculations identify the (200) facet as a high electron-density surface that provides superior charge transport and interfacial contact compared to the (102) facet. However, excessive IL dissociation leads to an undesired 3D-to-1D phase transition, reducing device stability. To overcome this limitation, we employ a low-dissociation IL in combination with a strongly PbI<sub>2</sub>-coordinating solvent, which modulates PbI<sub>2</sub> sites and allows low-dissociation ILs to replicate the benefits of highly dissociative ones. This approach enables the formation of rod-shaped 1D perovskites with dominant (200) facets while preserving long-term stability. Consequently, the optimized 1D/3D heterojunction PeSC achieves a power conversion efficiency of 25.40 % and exhibits excellent device stability under ISOS-D1 and ISOS-L testing. These results present a viable strategy for employing 1D perovskites as functional interfacial layers in stable, high-efficiency photovoltaic devices.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"149 ","pages":"Article 111714"},"PeriodicalIF":17.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974558","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}