ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Zhenghao Liu,Yiming Li,Zijing Chen,Chengyu Tan,Xiangjin Du,Fubo Tian,Jiangjian Shi,Huijue Wu,Yanhong Luo,Dongmei Li,Qingbo Meng
Tin oxide (SnO 2 ) based on chemical bath deposition method (CBD-SnO 2 ) is considered as an ideal electron transporting layer for perovskite solar cells (PSCs), however, the research on precise regulation toward CBD-SnO 2 layer is lacking. Here, the study introduces a multifunctional molecule, potassium 2-(N-morpholino)ethanesulfonate (MES-K), on the surface of CBD-SnO 2 layer to synergistically modify the buried interface between the SnO 2 and perovskite. It is found that MES-K introduction can passivate interfacial defects, favor the perovskite crystal growth, and improve carrier transportation. 25.14% efficiency of small-size perovskite solar cells has been achieved with 24.45% efficiency of 1 cm 2 perovskite devices, with negligible hysteresis. Besides, unencapsulated devices based on CBD-SnO 2 can maintain > 95% of its initial efficiency after 2000 h storage at ambient environment, and > 90% after 1000 h LED illumination.
研究领域:
材料科学
·
能源技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2024
·
IF 4.1
Renjie Xie,Jianbin Lu,Youqiang Liu
Carbon monoxide (CO), as a characteristic gas of transformer faults, its accurate detection is crucial for the stable operation of power systems . In this paper, a high-precision CO sensor based on MOF-derived nickel oxide/tin dioxide ( MOF-NiO/SnO 2 ) capable of operating at room temperature was prepared. Characterization results show that lamellar MOF-derived NiO with large specific surface area can be used as an attachment platform for SnO 2 nanoparticles , which contributes to the formation of heterojunctions and the realization of high-performance synergies. This allows the sensor to exhibit excellent response values for CO gas sensing (5.48 @100 ppm CO gas), low detection limits (1 ppm CO gas) and fast response/recovery times (56/4 s @ 100 ppm CO gas). The porous structure , large specific surface area of MOF-derived NiO and formation of NiO/SnO 2 heterojunction realizes high performance CO gas detection at room temperature.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Zuhuan Lu,Yukun Wang,Jing Zhang,Xujianeng Du,Wenhong Sun
Tin dioxide (SnO2) is a widely used electron transport layer (ETL) in perovskite detectors, and optimizing the ETL is a common strategy to enhance detector performance. However, SnO2 films prepared via solution methods exhibit numerous defects, which degrade device performance. In this study, 2-fluoroethylamine hydrochloride (2-FN), containing both fluorine (F) and chlorine (Cl), was incorporated into SnO2 films. The incorporation of 2-FN effectively reduced oxygen vacancies in SnO2, passivated defects, and enhanced electrical conductivity. Additionally, the presence of 2-FN in the SnO2 film facilitated the growth and crystallization of the perovskite film, increased the size of perovskite grains, and improved crystallinity. Consequently, the external quantum efficiency (EQE) of the perovskite detector improved from 86.92% to 91.11%. Simultaneously, the dark current density decreased from 2.47 × 10−9 to 1.26 × 10−10 A cm−2, and the linear dynamic range (LDR) increased from 93.62 to 117.85 dB. The device stability was also enhanced due to the reduction of oxygen vacancies, with the 2-FN-doped perovskite detector maintaining 72.66% of its initial EQE after 32 days in a dark environment at 25 °C and 20–30% relative humidity.
研究领域:
材料科学
·
光电探测器
·
半导体物理
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
TaoTao Fan,Chenling Huang,Rong Chen,Jianping Xu,Chunyan Wang,Yong Qian
In this study, we proposed an effective and rational method for in situ decoration of tin dioxide (SnO 2 ) nanoparticles on single-walled carbon nanohorns (SWNHs) by using poly (sodium 4-styrenesulfonate) (PSS) as dispersing agent and stabilizer. The morphology and nanostructure of SnO 2 /SWNH composites were tested by TEM, XRD and XPS in detail. The results indicated that uniform dispersion of SnO 2 nanoparticles with mean size about 5nm on the SWNHs. The nanocomposites as electrode materials for high-performance supercapacitors were tested by cyclicvoltammetry (CV) and galvanostatic charge-discharge (GCD). Experimental results exhibited a high specific capacitance of 180.69 F/g at 1 A/g in 1 M Na 2 SO 4 electrolyte. The SnO 2 /SWNH composites showed good cycling stability, which the retention rate of the specific capacitance was 80.72% after 1200 times of charge and discharge cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
·
2021
·Vol. 36
·期 12
·125022
·
IF 2.352
Yuchang Liu,Hongjie Liu,Anjie Hu,Yingmei Wei,Wenchao Ou,Xianwang Deng,Shaopeng Wang,Kefu Yu
The quest to develop inexpensive chemical sensing materials that are energy-efficient, portable, and with efficient performance lies at the center of next-generation sensor development. Owing to their low cost, easy preparation, high response, and smooth integration with electronic circuits, metal oxide semiconductors have received particular attention. Yet, metal oxide semiconductor based sensors often suffer from high power consumption due to their high operating temperature, which hinders them from practical applications. To solve this problem, herein, we proposed ultrathin sub-4 nm SnO2 films synthesized by a facile tunable hydrothermal method. Benefiting immensely from its two-dimensional anisotropic nature, the proposed SnO2 ultra-thin film exhibits a large specific area of 94.41 m2 g−1 and possesses surface oxygen vacancies. The obtained sample was practically applied as a gas sensor; the results indicate that the ultra-thin SnO2 film based sensor exhibits the highest sensitivity to triethylamine (19.2 at 100 ppm), outstanding repeatability, and excellent sensing selectivity at a low working temperature of 150 °C.
研究领域:
材料科学
·
化学传感器
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2017
·
IF 6.395
Qinghua Tian,Lingxiangyu Li,Jizhang Chen,Li Yang,Shin-ichi Hirano
Elaborate fabrication of state-of-the-art nanostructure SnO 2 @C-based composites greatly contributes to alleviate the huge volume expansion issue of the SnO 2 anodes. But the preparation processes of most of them are complicated and tedious, which is generally adverse to the development of SnO 2 @C-based composite anodes. Herein, a unique nanostructure of TiO 2 @SnO 2 @C hollow nanobelts (TiO 2 @SnO 2 @C HNBs), including the characteristics of one-dimensional architecture, sandwich protection, hollow structure, carbon coating, and a mechanically robust TiO 2 support, has been fabricated by a facile approach for the first time. As anodes for lithium-ion batteries, the as-fabricated TiO 2 @SnO 2 @C HNBs exhibit an outstanding lithium storage performance, delivering capacity of 804.6 and 384. 5 mAh g −1 at 200 and even 1000 mA g −1 after 500 cycles, respectively. It is demonstrated that thus outstanding performance is mainly attributed to the unique nanostructure of TiO 2 @SnO 2 @C HNBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
SOLAR ENERGY
·
2019
·
IF 4.674
Yuqian Ai,Weiqing Liu,Chunhui Shou,Jin Yan,Nan Li,Zhenhai Yang,Wei Song,Baojie Yan,Jiang Sheng,Jichun Ye
Tin oxide (SnO 2 ) is widely adopted as an electron transport layer (ETL) in perovskite solar cells (PSCs). However, the oxygen vacancies of the SnO 2 not only are the trap states of the nonradiative recombination of photogenerated carriers, but also build the potential barrier of carrier transport. To solve this issue, ammonium sulfide [(NH 4 ) 2 S] is introduced to the SnO 2 precursor for passivating the surface defects by terminating the Sn dangling bonds (S–Sn bonds). After reducing the surface traps, the electron mobility and conductivity of SnO 2 film are enhanced significantly while the carrier recombination is decreased. Additionally, the energy level of S-SnO 2 is also slightly modified. Therefore, this sulfide-passivated mothed remarkably improves the electron collection efficiency of the ETL. Furthermore, the linkage of Sn–S–Pb anchors the perovskite crystals at the perovskite/SnO 2 interface, which increases the electron extraction efficiency and the stability of PSC. Based on this S-SnO 2 ETL, the power conversion efficiency of the PSC is greatly promoted from 18.67% to 20.03%, compared with the reference one. In this study, it is proven that the surface defect passivation of SnO 2 is an efficient and simple method to improve the photovoltaic performance, as a promising ETL for high-efficiency device.
研究领域:
材料科学
·
能源科学
·
光伏技术
✓ 已验证
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2019
·
IF 2.722
Xiaoxue Lian,Yan Li,Junwu Zhu,Yunling Zou,Dongmin An,Qiong Wang
Stannic oxide nanoparticles with the different Au decorating contents are prepared by a simple hydrothermal method in this paper. The products are characterized by X-ray diffraction (XRD), energy dispersive spectrum (EDS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The XRD patterns reveal that all the products are tetragonal phase of rutile SnO 2 crystal structure. The gas-sensing performance of the Au-decorated SnO 2 nanoparticles for volatile organic compounds (VOCs) are studied. At its optimal operation temperature of 240 o C, the sensing properties of the Au-decorated SnO 2 nanoparticles to n-buthanol gas show a good gas sensing performances as low detection limit (1ppm), good selectivity and good repeatability. The highest sensing response of 6.0 at. % Au-decorated SnO 2 nanoparticles (251.23 for 200 ppm to n-buthanol) is over 21 times higher than that of pure SnO 2 (11.5). All results prove the potential of using Au-decorated SnO 2 for n-buthanol gas detection.
研究领域:
材料科学
·
化学传感器
✓ 已验证
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2025
·
IF 4.6
Meng He,Xiaohui Lu,Yanyan Li,Yanfang Tao,Li Zhao,Yang Li
Perovskite solar cells (PSCs) suffer from a high density of defects at the buried bottom interface, which negatively impacts the efficiency in the PSCs and interface recombination. This is primarily due to carrier recombination losses occurring at the perovskite/SnO 2 . In this study, a two-dimensional lamellar V 2 CT x MXene materials, synthesized by hydrofluoric acid (HF) etching, was incorporated at the buried interface between the SnO 2 electron transport layer and the perovskite layer. The introduction of a V 2 CT x MXene modified layer at the perovskite/SnO 2 buried interface simultaneously modulates the crystallization and defect passivation within the perovskite material, leading to enhanced grain size and crystallinity. Consequently, highly efficient and stable PSCs were achieved. The presence of terminal group T x (OH − , F − ) in V 2 CT x facilitates the transfer of electrons to the 6p vacant orbitals of Pb 2+ ions, promoting the formation of Pb-F complexes. These complexes effectively suppress uncoordinated Pb ions at the perovskite interfaces, thereby significantly reducing defect density. As a result, the V 2 CT x -modified PSCs achieve an average power conversion efficiency (PCE) of 14.6 %, a notable improvement over the 12.8 % of the control devices, while also enhancing operational stability. This research provides a convenient and effective approach for enhancing crystallization and passivation defects in perovskite films, thereby improving device efficiency and stability.
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2020
·Vol. 26
·期 8
·3841-3851
·
IF 2.394
Sun Xiaolei
Tin dioxide (SnO 2 ) is of interest as an alternative anode material for lithium ion batteries. However, the major concern is the significant volume expansion during lithiation process, resulting in poor capacity retention and rate capability. Here, a facile morphosynthesis route is adapted for the fabrication of hierarchical SnO 2 nanocrystal networks with interwoven fibers, by immersing sacrificial eggshell membrane in a Sn-based sol followed by a calcination process in air. With both structural and compositional advantages, the synthesized SnO 2 networks electrode manifests superior reversible capacities of 938, 802, 736, 636, and 506 mAh g −1 even at high current densities of 0.2, 0.5, 1, 2, and 5 A g −1 , respectively. Besides, its initial Coulombic efficiency (72.6%) is also much enhanced compared with that of bare SnO 2 nanoparticles (59.6%) and commercial SnO 2 nanopowders (46.8%). The finding highlights the probable potential application of the SnO 2 networks for next-generation lithium ion batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2020
·
IF 8.247
Jinfu Ma,Jing Li,Shaolin Yang,Hui Lu,Limeng Liu,Ruipeng Wang
In direct borohydride fuel cell (DBFC), there is a contradiction between catalytic activity and specific discharge capacity (SDC) owing to the dual catalytic effects of most anode catalysts on both borohydride oxidation reaction (BOR) and borohydride hydrolysis reaction (BHR). To overcome this problem, a facile method to fabricate an ultrathin tin dioxide (SnO 2 ) supported cobalt oxide (Co 3 O 4 ) composite material (u-SnO 2 /Co 3 O 4 ) as DBFC anode catalyst was developed. Both catalytic ability for BOR and specific discharge capacity of the DBFC using the u-SnO 2 /Co 3 O 4 (DBFC-u-SnO 2 /Co 3 O 4 ) with 5–10 nm thick two-dimensional (2D) SnO 2 were improved. The maximum power density (52.5 mW cm −2 ) and SDC (1380 mAh g −1 ) of DBFC-u-SnO 2 /Co 3 O 4 were respectively increased by 105% and 1740% in comparison with those of DBFC with Co 3 O 4 as anode catalyst (DBFC-Co 3 O 4 ). The u-SnO 2 /Co 3 O 4 has higher specific surface area, electron donation ability, and the rate of desorption of intermediate product (such as BH 3 OH − , H ads ) which may account for the excellent catalytic performance of u-SnO 2 /Co 3 O 4 for BOR.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 14
·850
·
IF 4.8
Hongyu Cui,Mingju Wang,Maosheng Zhou,Tianqi Cao,Junyi Liu,Chuanhui Zhang
Constructing catalytic materials with specific morphologies is an effective approach to boosting and optimizing their catalytic performances. Herein, SnO 2 supports with diverse morphologies of nanosphere, nanosheet and nanorod were separately synthesized for the fabrication of supported Ru catalysts. Catalytic evaluation results for vinyl chloride (VC) oxidation reveal that the nanosphere-shaped catalyst (Ru/SnO 2 -Sp) exhibits the optimum catalytic activity (achieving 90% of VC conversion at 268 °C), exceptional long-term catalytic durability, and cyclic stability comparable to nanosheet-shaped and nanorod-shaped catalysts (Ru/SnO 2 -Sh and Ru/SnO 2 -Rd). Additionally, Ru/SnO 2 -Sp presents promising applicability with regard to its impressive resistance behavior towards carbon dioxide and water vapor interference. Characterization results clearly demonstrate the close structure–activity relationship, primarily depending on the physicochemical parameters of specific surface area, redox capacity, surface oxygen species and valence state distribution of Ru. In situ infrared spectroscopy clarifies the key catalytic pathways of VC oxidation over Ru/SnO 2 -Sp, evidencing that the enol species from C-Cl bond cleavage and initial activation of VC molecules and the carboxylic acid species resulting from the subsequent oxidation of enol are both recognized as the crucial organic intermediates.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）