Nature Photonics
·
2026
·
IF 38.1
Sun Nannan,Fu Sheng,Li Yunfei,Ma Tianshu,Wang Feng,Ouyang Wentai,Feng Bo,Zhu Xiaotian,Cui Zhengbo,Yao Canglang,Zhang Wenxiao,Li Xiaodong,Wang Changlei,Gao Feng,Fang Junfeng
All-perovskite tandem solar cells (APTSCs) have rapidly improved in both power conversion efficiency (PCE) and room-temperature stability. However, achieving device stability under combined light–heat stresses (ISOS-L-3 conditions) remains challenging. The critical limitation stems from the highly reactive tin–lead surface which, even with molecular passivation strategies, remains susceptible to severe photothermal degradation. Here we develop a targeted conversion strategy to transform the metastable surface into a solid protection layer. Our method relies on treatment with alkaline caesium hydroxide, which releases OH − to mediate the dual transformation of SnI 4 and the defective surface into solid metal oxides, as well as replacing volatile organic cations with Cs + . This strategy leads to improved stability under ISOS-L-3 testing conditions and overall optoelectronic performance. The resulting tin–lead cells achieve a champion PCE of 23.65%, enabling the corresponding APTSCs to reach a PCE of 29.52% (certified, 28.56%). The APTSCs retain 90.3% of their initial PCE after 500 h under ISOS-L-3 conditions, outperforming traditional amine-treated counterparts. Our findings demonstrate a promising pathway towards photothermally stable and efficient APTSCs.
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Small
·
2024
·
IF 13
Aifei Wang,Junjie Li,Yupeng Zhang,Suwen Cheng,Yanchen Wang,Yuan Xie,Chen Yu,Haoyu Chen,Jingjin Dong,Jiupeng Cao,Fangfang Wang,Wei Huang,Tianshi Qin
Luminescent solar concentrators (LSC) have the potential application in building integrated photovoltaic (BIPV). 0D tin-based perovskites are a promising embedding phosphor in LSC due to the large Stokes shift and high photoluminescence quantum yield. But the instability and uncontrollable crystal growth are severe limiting their successful utilization in device fabrication. To tackle these issues, double-shell encapsulated configurations are presented, soft ligands of hypophosphorous acid and hard-shell of hollow mesoporous silica are simultaneously suppressing the oxidation of Sn 2+ and restricting crystal growth within nano-matrix. The stable phosphor is subsequently embedded into LSC for harvesting solar energy and the resulting output power efficiently drives the combined electrochromic glass under natural light. These fabricated devices also offer the self-adaptable switch on/off functionality to regulate light absorption with variable solar irradiation intensity in real time. This approach is anticipated to open new avenues for utilizing lead-free perovskite nanomaterials in self-powered smart windows for BIPV.
研究领域:
材料科学
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能源技术
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光电工程
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DOI
高影响因子
Mineral Processing and Extractive Metallurgy Review
·
2016
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IF 1.56
Zijian Su,Yuanbo Zhang,Bingbing Liu,Jun Chen,Guanghui Li,Tao Jiang
Calcite (CaCO3), one of the main impurities, has an uncertain effect on the volatilization behavior of tin oxide in the tin-bearing iron ore concentrates during the selective reduction volatilization process. In this study, natural calcite powders were added into the tin-bearing iron ore concentrates to investigate tin volatilization behavior affected by CaCO3 under different roasting temperature, CO content, and roasting time. In addition, the effect of CaCO3 on the phase transformation of SnO2 was determined using XRD, SEM-EDS combined with thermodynamics calculation. The results indicated that CaCO3 had a significantly adverse effect on the Sn volatilization ratio, because Ca2SnO4 was easily formed under CO-CO2 atmosphere. It was also found from the study that the generation of SnO(s) was the most critical intermediate for promoting the formation of Ca2SnO4.
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Journal of Energy Chemistry
·
2020
·
IF 7.216
Yalong Zou,Deyu Liu,Xiangrui Meng,Qitao Liu,Yang Zhou,Jianming Li,Zhiying Zhao,Ding Chen,Yongbo Kuang
Photoelectrocatalytic (PEC) materials for harvesting solar energy can be discovered from existing photocatalytic semiconductors. Nonetheless, mixed valence tin oxides, a group of widely reported visible light active photocatalysts, can hardly be developed into efficient PEC photoelectrodes. To overcome this difficulty by clarifying its origin, two typical mixed valence tin oxides, Sn 2+ :SnO 2 microrods and porous Sn 3 O 4 particles were deliberately prepared as the models. Sn 2+ :SnO 2 microrods of less porosity exhibited a photocurrent over ten times higher than Sn 3 O 4 particles. Photo-electrochemical impedance spectroscopy revealed this was due to their charge kinetics difference, specifically the internal transport/transfer responding to the morphology. Moreover, hydroxyl residuals from synthesis were found to be very inhibitive for the PEC efficiency as well, which was in coherence with our TGA and Raman spectroscopic study. These finding experimentally proved the necessity of reconsidering the surface area, crystallinity , and defects when developing photocatalysts into efficient PEC structures.
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MATERIALS LETTERS
·
2017
·
IF 2.572
Wenlong Hou,Huiyun Guo,Jianping Zhang,Jing Xu,Lu Liu,Zhiwei Zhang,Jingkai Yang,Bo Liang,Haiquan Zhang
Antimony sulfide (Sb 2 S 3 ) films on indium tin oxide (ITO) glass substrates were prepared by electrodeposition method followed with heat-treatment process using a thiol–amine as solvent mixture under ambient conditions. The structure and properties of the Sb 2 S 3 films were characterized by XRD, SEM, TEM and electrochemical workstation. The results show Sb 2 S 3 films mainly consist of orthorhombic phase with micro-nanorods morphology. Sb 2 S 3 films exhibit good electrocatalytic activity towards hydrazine oxidation with a low detection limit of 0.4 μM. The facile synthesis method and excellent sensing properties make the Sb 2 S 3 films as a promising candidate for potential application in the field of catalysis and environmental.
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Journal of Physical Chemistry Letters
·
2022
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IF 6.888
Kaiwen Sun,Hong Ma,Wei Xia,Peng Suo,Wenjie Zhang,Yuqing Zou,Xian Lin,Saifeng Zhang,Yanfeng Guo,Guohong Ma
Analogous to black phosphorus, SnS processes folded structure that shows a strongly anisotropic optical absorption. Herein, by using ultrafast two-color pump and probe spectroscopy, the azimuthal angle dependence of nonlinear optical anisotropy in SnS is investigated. After 390 nm photoexcitation, the reflectivity of the 780 nm probe beam is first reduced significantly, followed by a complex alternation with the rotation of the sample along the c-axis. The relaxation of reflectivity consisted of two components: a 1–3 ps fast process that shows azimuthal angle and pump fluence dependence, which arises from electron–phonon coupling. The slow process shows strongly azimuthal angle dependence, which arises from the recovery of a photoinduced structural change, i.e., from the photoinduced metastable state with Cmcm-like symmetry to the initial state with Pnma symmetry. In addition, a coherent acoustic phonon with a frequency of 40 GHz is also identified, which originates from the temperature gradient-induced strain wave in the SnS crystal.
研究领域:
凝聚态物理
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超快光学
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材料科学
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非线性光学
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各向异性材料
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Science China-Materials
·
2018
·Vol. 62
·期 6
·803-812
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IF 4.318
Ren Jinhua,Li Kaiwen,Yang Jianwen,Lin Dong,Kang Haoqing,Shao Jingjing,Fu Ruofan,Zhang Qun
Gallium-tin oxide (GTO) semiconductor thin films were prepared by spin-coating with 2-methoxyethanol as the solvent. Their crystal structures, optical transparency, chemical states and surface morphologies, along with the electrical properties, were dependent on Ga contents and annealing temperatures. The optimized GTO channel layer was applied in the high- k Al 2 O 3 thin film transistor (TFT) with a low operation voltage of 2 V, a maximum field-effect mobility of 69 cm 2 V −1 s −1 , a subthreshold swing (SS) of 76 mV dec −1 , a threshold voltage of 0.67 V and an on-off current ratio of 1.8×10 7 . The solution-processed amorphous- GTO-TFTs would promote the development of low-consumption, low-cost and high performance In-free TFT devices.
研究领域:
材料科学
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半导体器件
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薄膜晶体管
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电子学
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Nature Communications
·
2026
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IF 18.1
Jiang Yiting,Lei Tingfeng,Ge Chengda,An Yidan,Zhang Nan,Wang Yunfan,Ke Lingyi,Guan Zhiqiang,Wong Chun-To,Lyu Danning,Liu Zhihui,Luo Jingdong,Tsang Sai-Wing,Wang Zaiwei,Jen Alex K.-Y.,Yip Hin-Lap
The development of high-performance narrow-bandgap tin-lead (Sn-Pb) perovskite solar cells (PSCs) is fundamental to surpassing the Shockley-Queisser limit via all-perovskite tandem configurations. Nevertheless, the vulnerability of Sn 2+ to oxidation in Sn-Pb perovskite films and devices remains a formidable obstacle to achieving superior film quality and competitive power conversion efficiency (PCE). Here, we introduce a bio-inspired antioxidant engineering strategy employing gallic acid (GA) as a dopant and tannic acid (TA) as a surface passivator to separately stabilize the perovskite bulk and interface. GA, a small antioxidant molecule, localizes at the grain boundaries to impart oxidation resistance and suppress the formation of excess SnI 2 impurities. TA, with its larger molecular framework, resides at the film surface to form a robust passivation layer that hinders oxygen intrusion while establishing a dipole that facilitates interfacial charge transfer. The dual-molecule synergy significantly enhances film oxidative stability against both intrinsic (precursor degradation) and extrinsic (neutral oxygen and superoxide) stimuli. Consequently, the Sn-Pb PSCs achieve a champion PCE of 23.46%, enabling a remarkable 29.95% (certified 29.44%) efficiency in monolithic all-perovskite tandems.
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PubMed
高影响因子
Journal of Physical Chemistry C
·
2025
·
IF 3.2
Peng Wang,Zisheng Gong,Jingwen Chen,Renjia Shen,Zeyi Liu,Dehui Li
Two-dimensional (2D) hybrid organic–inorganic halide perovskites have garnered increasing attention due to their unique physical properties and potential applications in optoelectronic devices. Introducing chiral organic ligands into layered inorganic frameworks can impart strong chirality to pure 2D perovskites, offering the potential for applications in circularly polarized light emission and detection. However, most of them are lead-based chiral perovskites, which inherit the toxicity of lead. To overcome the toxicity limitations, lead-free chiral perovskites have been developed by using manganese (Mn), copper (Cu), bismuth (Bi), and tin (Sn). Among these alternatives, tin (Sn) has emerged as the most promising candidate because tin and lead both have similar ionic radii and valence electron structures. Nevertheless, the study of 2D tin-based chiral perovskite is still in fancy. Here, we report a new two-dimensional tin-based chiral perovskite (S-/R-3BrMBA)2SnI4 [3BrMBA = 1-(3-bromphenyl)-ethylamine] with a high degree of circularly polarized light emission. The as-synthesized 2D tin-based chiral perovskite (S-3BrMBA)2SnI4 shows an average (maximum) degree of circular polarization (DOCP) of 26.2% (35.8%) at 78 K, which is the highest value in lead-free chiral perovskites reported to date and might be ascribed to the large lattice distortion induced by the chiral ligands. The DOCP decreases with increasing temperature and maintains a constant value with the excitation power. The high DOCP in our pure chiral 2D perovskites would shed light on the development and exploration of lead-free spin-associated optoelectronic devices.
研究领域:
材料科学
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光电子学
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手性
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钙钛矿化学
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固态物理
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Journal of Physical Chemistry C
·
2025
·
IF 3.2
Zhiyan Yi,Xiaoming Zhang,Yuxin Wu,Qinglin Meng,Panheng Wang,Ziqiao Wu,Qiao He,Jiandong Fan,Wenzhe Li
The exceptional photoluminescence (PL) efficiency of tin-based perovskites has garnered significant scientific interest. However, the high performance of these materials is predominantly dependent on antimony (Sb) doping, raising concerns regarding Sb toxicity. To address this critical issue, we propose an innovative approach by introducing low-toxicity Y3+ as a dopant and synthesizing a novel perovskite single crystal through advanced crystal growth techniques. By implementing strategic structural modifications, we achieve a substantial improvement in the luminescence performance of the perovskite single crystal. These structural alterations demonstrate an intensified electron–phonon coupling and enhanced electron localization, thereby optimizing the formation efficiency of self-trapped excitons. The resultant (4PPY·H)2Sn0.864Y0.136Cl5.864 single crystal exhibits remarkable photoluminescence properties, achieving a quantum yield of up to 96%. Furthermore, the fluorescence lifetime of the doped crystal demonstrates a more than 2-fold increase compared to its undoped counterpart.
研究领域:
材料科学
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光电子学
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光物理
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钙钛矿半导体
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固态化学
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DOI
高影响因子
Materials Today Energy
·
2021
·
IF 7.311
W. Guo,Y. Zhang,X. Tong,X. Wang,L. Zhang,X. Xia,J. Tu
Aqueous zinc-ion battery is a low-cost, non-toxic, and high-safety energy storage system , which has received extensive attention in recent years. However, the Zn anode with high theoretical capacity often suffers from severe corrosion and dendrite growth during the Zn plating/stripping process, leading to severe polarization and eventually short circuits. These knotty problems severely impede further practical applications of Zn-based batteries . Herein, a robust and homogeneous metallic tin (Sn) coating is in situ built on the surface of Zn to form Zn|Sn by a facile chemical vapor deposition method to enhance reaction reversibility. The as-prepared Sn coating not only affords more robust nucleation sites of Zn and higher hydrogen evolution reaction potential, but also effectively decreases the nucleation overpotential of Zn. Accordingly, the symmetric cells with Zn|Sn anode can stably maintain an extremely low-voltage hysteresis (50 mV) in a 500 h of plating/stripping cycles. Even at a high current density of 50 mA cm −2 , the symmetric Zn|Sn cell still can operate well for 50 h. Moreover, this stable Zn|Sn anode also enables a full Zn-ion battery with outstanding rate and cyclic stability.
研究领域:
电化学储能
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材料科学
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能源化学
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金属负极
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电池技术
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高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Qiming Tang,Heng Su,Yanhui Cui,Andrew P. Baker,Yanchen Liu,Juan Lu,Xiaona Song,Huayu Zhang,Junwei Wu,Haijun Yu,Deyang Qu
As an advanced anode material for lithium-ion batteries, tin-chalcogenides receive substantial attention due to their high lithium-ion storage capacity. Here, tin chalcogenide (SnSe 0.5 S 0.5 ) nanoplates are synthesized using a facile and quick polyol-method, followed by heating at different temperatures. Results show that the as-prepared of SnSe 0.5 S 0.5 heated at temperature of 180 °C exhibits the best electrochemical performance with an outstanding discharge specific capacity of 1144 mA h g −1 at 0.1 A g −1 after 100 cycles and 682 mA h g −1 at 0.5 A g −1 after 200 cycles with a high coulombic efficiency (CE) of 98.7%. Even at a high current density of 5 A g −1 , this anode material delivers a specific capacity of 473 mA h g −1 . The high electrochemical performance of SnSe 0.5 S 0.5 is shown by in-situ XRD analysis to originate from an enhanced Li + intercalation and an alloy conversion process.
研究领域:
材料科学
·
电化学
·
纳米科技
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能源存储
·
无机化学
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高影响因子
危险品化学品经营许可证（带存储）