Article
Engineering, Electrical & Electronic
Jianing Liao, Yi Zhong, Zetian He, Hao Ding, Kai Chen, Daimei Chen
Summary: A 3D flower-like MoS2/Bi2S3 heterojunction was synthesized successfully, showing enhanced photocatalytic activity and electrochemical performance. The effective separation of charge carriers between Bi2S3 and MoS2 contributes to the improved photocatalytic activity, while the heterojunction exhibits significantly higher capacitance as a supercapacitor electrode compared to pure Bi2S3. The findings suggest a promising potential for metal sulfides heterojunction in multifunctional applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Dabin Park, Minsu Kim, Jooheon Kim
Summary: Bismuth sulfide/tin (IV) sulfide heterostructure nanocomposites were fabricated via solution mixing and their thermoelectric power factor was optimized by controlling their composition ratio, resulting in high thermoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jun Guo, Yu-Ke Zhu, Lin Chen, Zi-Yuan Wang, Zhen-Hua Ge, Jing Feng
Summary: In this study, Bi2S3 with high electrical transport properties was synthesized via Se and Cl co-doping. The significantly improved electrical conductivity and power factor of the material make it a promising candidate for thermoelectric applications at medium temperatures, with a high ZT value and conversion efficiency.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Xiao Liu, Yuning Jiang, Jing Luo, Xiaoyu Guo, Ye Ying, Ying Wen, Haifeng Yang, Yiping Wu
Summary: A novel aptamer modified SnO2/Bi2S3-based photoelectrochemical (PEC) sensor was developed for the determination of TOB in milk, showing a wide linear response range of 5-50 nmol/L with a detection limit of 4.28 nmol/L. The high sensitivity of the sensor is attributed to the favorable energy level matching of SnO2 and Bi2S3, and further enhanced by the use of oxalate. The stability of the PEC aptasensor is satisfactory due to calcination of SnO2/Bi2S3 at 450 degrees C.
Article
Chemistry, Physical
Raphael Fortulan, Sima Aminorroaya Yamini, Chibuzor Nwanebu, Suwei Li, Takahiro Baba, Michael John Reece, Takao Mori
Summary: Thermoelectric technology has the potential to convert waste heat into electricity and is an emission-free solid-state cooling technique. Conventional high-performance thermoelectric materials often use rare or toxic elements, but sulfur can be a cheaper and non-toxic alternative to tellurium. By codoping Bi2S3 with Cr and Cl, the thermoelectric properties were enhanced, with an increase in carrier concentration due to the substitution of S with Cl. The magnetic Cr dopant introduced a magnetic drag that increased the effective mass, resulting in high Seebeck coefficients and power factor.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Dabin Park, Minsu Kim, Jooheon Kim
Summary: Bismuth(III) sulfide (Bi2S3), tin(IV) sulfide (SnS2), and a multi-walled carbon nanotube (MWCNT) are combined via a hydrothermal method to form a hybrid composite (Bi2S3-SnS2-MWCNT). The resulting composite exhibits n-type thermoelectric properties and an improved power factor (PF). The unique structure of the composite is confirmed through scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy (XPS). By optimizing the composition, the maximum PF of the composite is achieved, which is significantly higher than that of Bi2S3 and SnS2 alone at room temperature. This hybrid nanocomposite can serve as a crucial component for high-efficiency carbon nanotube-based thermoelectric composites, thus advancing thermoelectric device technology.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Vinicius Teodoro, Aline Barrios Trench, Leticia Guerreiro da Trindade, Natalia Jacomaci, Hector Beltran-Mir, Juan Andres, Eloisa Cordoncillo, Jefferson Bettini, Elson Longo
Summary: The study demonstrated that Bi2S3 semiconductor behaves as a piezoelectric material under ultrasound, facilitating electron and hole transfer and enabling the formation of oxidizing agents. While Bi2S3 showed no photocatalytic activity in the presence of light, ultrasound led to a significant increase in RhB degradation.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
T. Thai Ha Vu, T. Anh Thu Do, Duc Toan Nguyen, Truong Giang Ho, Quang Ngan Pham, Hong Thai Giang, Manh Ha Hoang, T. Ha Lien Nghiem, Minh Tan Man, Dai Lam Tran
Summary: Hierarchical structures composed of MoS2 nanosheets grown on Bi2S3 nanorods were prepared via hydrothermal reaction. The innovative heterostructures with distinct porosity and close interfacial contact facilitate effective visible-light utilization and provide permeable routes for reactant molecules to enter the inner structure. The Bi2S3 @MoS2 heterostructure with 50% MoS2 exhibited superior adsorption and photodegradation of Rhodamine B, reaching 97.5%. Toxic heavy metal ions and organic pollutants in water can be eliminated using attractive heterostructures with excellent adsorption capacities and photocatalytic activities.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Palyam Subramanyam, Bhagatram Meena, Gudipati Neeraja Sinha, Duvvuri Suryakala, Challapalli Subrahmanyam
Summary: The visible-light-active bismuth sulfide@reduced graphene oxide nanocomposite photoanode exhibited high photocurrent density and applied bias photon-to-current efficiency in PEC water splitting, attributed to the effective visible-light absorption of bismuth sulfide and good electron-transfer properties of highly conductive reduced graphene oxide nanosheets, facilitating charge separation and transportation while inhibiting charge recombination.
Article
Chemistry, Multidisciplinary
Jun Guo, Jianmin Yang, Zhen-Hua Ge, Binbin Jiang, Yang Qiu, Yu-Ke Zhu, Xiao Wang, Ju Rong, Xiaohua Yu, Jing Feng, Jiaqing He
Summary: This study successfully increased the carrier concentration of Bi2S3 materials and improved their conductivity by adding halogen acid during the hydrothermal process. The samples showed improved power factor and achieved an excellent ZT value, offering a new method for enhancing the thermoelectric properties of Bi2S3.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Imran Uddin, Shaik M. Abzal, Kurapati Kalyan, Sailakshmi Janga, Ashutosh Rath, Rajkumar Patel, Deepak K. Gupta, T. R. Ravindran, Hira Ateeq, Mohd Sajid Khan, Jatis K. Dash
Summary: In this study, starch-stabilized bismuth sulfide nanoparticles were synthesized and characterized. The nanoparticles showed stable properties, quasispherical shape, and inhibitory effects on bacterial strains.
Article
Energy & Fuels
K. Narthana, G. Durai, P. Kuppusami, J. Theerthagiri, S. Sujatha, Seung Jun Lee, Myong Yong Choi
Summary: Ni1-xCuxS metal sulfides with nanorods-like structures were synthesized via a hydrothermal process, showing high specific capacitance with Ni-0.8Cu0.2S having the best electrochemical performance due to its crystalline structure and active sites. These materials demonstrate potential as cost-effective and environmentally friendly electrode materials for supercapacitors.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Analytical
Thatyara Oliveira Monteiro, Antonio Gomes dos Santos Neto, Alan Silva de Menezes, Flavio Santos Damos, Rita de Cassia Silva Luz, Orlando Fatibello-Filho
Summary: A sensitive and selective label-free photoelectrochemical immunosensor was developed for the detection of cardiac troponin I. The immunosensor utilized a Bi2S3/BiVO4/FTO platform, which showed enhanced photocurrent compared to a platform without Bi2S3. The immobilization of cTnI antibodies on the platform inhibited the photocurrent in the presence of cTnI, and the resulting photocurrent showed a linear relationship with the logarithm of cTnI concentration.
Article
Chemistry, Physical
Maged N. Shaddad, Prabhakarn Arunachalam, Mahmoud Hezam, Norah M. BinSaeedan, Sixto Gimenez, Juan Bisquert, Abdullah M. Al-Mayouf
Summary: Researchers improved the charge separation and water oxidation efficiency of BiVO4 photoanodes by treating them with BiPS4-Bi2S3 hybrid nanostructure, resulting in a higher photocurrent with promising stability. This method can be used to design complex nanostructured materials with tunable optical and electrical features for various applications such as photoelectrocatalysis, electrical energy storage, and solar cells.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Feihu Mu, Benlin Dai, Wei Zhao, Xiaofan Yang, Xiaolong Zhao, Xujing Guo
Summary: The construction of a heterojunction photocatalyst with amorphous/crystalline contact Bi2S3/Bi4O7 heterostructure significantly enhances the photocatalytic activity by promoting the separation of photogenerated carriers. The optimized Bi2S3/Bi4O7 heterostructure photocatalyst exhibits much higher activity than pure Bi4O7 and Bi2S3/Bi4O7 mixture under visible light irradiation, indicating the effectiveness of the methodology.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Long Zhang, Shuoxue Li, Huaiyang Sun, Qiwen Jiang, Yue Wang, Yuanyuan Fang, Ying Shi, Defang Duan, Kai Wang, Hong Jiang, Laizhi Sui, Guorong Wu, Kaijun Yuan, Bo Zou
Summary: This study reveals the pressure-induced emission (PIE) mechanism of self-trapping excitons (STEs) in low-dimensional halide perovskites by investigating a 2D layered double perovskite material. The results show that pressure can transform dark-state STEs into bright-state STEs, resulting in a strong broadband Stokes-shifted emission. The theoretical analysis further explains that the suppressed lattice distortion and enhanced electronic dimensionality in the excited-state play crucial roles in stabilizing the bright-state STEs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Rui Fu, Haoqiang Song, Xingjiang Liu, Yongqiang Zhang, Guanjun Xiao, Bo Zou, Geoffrey I. N. Waterhouse, Siyu Lu
Summary: A microwave-assisted strategy was reported for the preparation of solid-state fluorescent multi-color carbon dots (SFM-CDs) with blue, yellow, and red emissions from the same precursors within 5 minutes. The SFM-CDs showed excellent solid-state fluorescence performance and were used as the fluorescent converter layer in multi-color LEDs and white LEDs with a high color rendering index.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chenyue Zhao, Zhipeng Ding, Yibin Zhang, Zhigang Ni, Shijun Li, Shaolong Gong, Bo Zou, Kai Wang, Ling Yu
Summary: Different from conventional piezochromic materials, our designed molecule exhibits sensitive and tunable luminescence in response to hydrostatic pressure. The molecule possesses dual-emission and bidirectional shifting characteristics. Experimental studies reveal that the dual-emission behavior is attributed to intramolecular charge transfer and intermolecular excimer. The color change of the molecule from sky-blue to green to deep-blue is a result of intramolecular and intermolecular energy-transfer interactions.
Article
Chemistry, Multidisciplinary
Yuanyuan Fang, Jingtian Wang, Long Zhang, Guangming Niu, Laizhi Sui, Guorong Wu, Kaijun Yuan, Kai Wang, Bo Zou
Summary: Efficient warm white light emission is sought after in single-component materials for light-emitting applications. This study observed an unusual pressure-induced warm white emission enhancement in 2D perovskite (2meptH(2))PbCl4, accompanied by a significant increase in photoluminescence quantum yield. The collapse of the crystal structure triggered by octahedral distortions and the evolution of organic cations led to the emission enhancement, and further collapse promoted the formation of self-trapped excitons and suppressed nonradiative transitions, resulting in continuous photoluminescence enhancement under pressure.
Article
Chemistry, Inorganic & Nuclear
Baofeng Zheng, Yanhua Song, Zhibo Zheng, Yanxia Zhao, Qing Yang, Zhan Shi, Bo Zou, Haifeng Zou
Summary: A novel green-light-emitting silicon-based oxynitride phosphor Ca4Y3Si7O15N5:Eu2+ with low thermal quenching and ideal pressure sensitivity is reported. The phosphor can efficiently emit green light when excited by 345 nm ultraviolet light and shows high thermal stability. It also exhibits a red shift with increasing pressure, making it suitable for optical pressure sensing applications.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yue Shi, Yuan Fu, Zhiwei Ma, Dianlong Zhao, Kai Wang, Guanjun Xiao, Bo Zou
Summary: Copper(I)-based halides have gained attention as a substitute for toxic lead halides due to their abundance, non-toxicity, unique structure, and optoelectric properties. However, finding effective strategies to improve their optical activities and understanding the structure-optical property relationships is still a major concern.
Article
Multidisciplinary Sciences
Zhi Li, Yuanyi Zhou, Yingtang Zhou, Kai Wang, Yang Yun, Shanyong Chen, Wentao Jiao, Li Chen, Bo Zou, Mingshan Zhu
Summary: The study introduces a new method to improve the efficiency of artificial photosynthesis by using a dipole field to drive the transfer of electrons in nitrogen-rich triazole-based carbon nitride.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Lixiang Wang, Yilong Song, Liqi Li, Liting Tao, Minxing Yan, Weihui Bi, Xueying Yang, Yuan Sun, Qingfeng Dong, Deren Yang, Yanjun Fang
Summary: Organic-inorganic halide perovskite single crystals show great potential as radiation detectors due to their excellent photoelectric conversion capability and low-cost solution processability. However, the presence of charge traps and defects in the crystals has limited the accuracy and stability of the detectors, especially under high-precision photon-counting mode. In this study, a trap freezing deactivation route was proposed to suppress dark current and noise, leading to a record high energy resolution of 7.5% at 59.5 keV. Furthermore, the ability of the crystals to self-heal defects induced by radiation damage at low temperatures was demonstrated, and the detector maintained over 90% of its initial performance after 9 months of storage in air.
Article
Chemistry, Multidisciplinary
Xing Su, Nan Li, Kai Wang, Qian Li, Weiguang Shao, Lulu Liu, Binhong Yu, Yu-Mo Zhang, Tingting Lin, Bo Zou, Yifei Liu, Sean Xiao-An Zhang
Summary: In this article, optical monitoring and diamond anvil cell (DAC) techniques are used to study the mechanochemistry of tetraphenylethene and pyrene modified cyano spiropyrans. The physical process of pressure induced emission enhancement (PIEE) properties and multi-step cascade reactions are revealed. The cis/trans tautomerization of spiropyran under hydrostatic pressure is observed and the ultra-unstable intermediates of merocyanine form are monitored. This research opens up new possibilities for the dynamic study of cleavage of covalent bonds in mechanochemistry.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Zhiyuan Fu, Zhiqiang Yang, Xinyi Yang, Kai Wang, Bo Zou
Summary: The properties of mechanoresponsive materials are influenced by intermolecular interaction, which can be modulated using anisotropic grinding and hydrostatic high-pressure compression. Applying high pressure to DPH results in an increased emission and red-shifted piezochromism due to reduced molecular symmetry and pi-pi interactions. By controlling intermolecular interactions, NLC mechanical response can be achieved, while grinding destroys these interactions leading to a blue-shifted luminescence. The evolution of intermolecular interactions has important implications for developing new fluorescence materials and structural materials.
Article
Chemistry, Inorganic & Nuclear
Zhibo Zheng, Yanhua Song, Baofeng Zheng, Yanxia Zhao, Qilin Wang, Xiangting Zhang, Bo Zou, Haifeng Zou
Summary: High sensitivity and multi-mode optical pressure sensing were achieved for the first time by co-doping Eu2+ and Mn2+ ions in the Lu2Mg2Al2Si2O12 (LMAS) host. The co-doping strategy proposed in this research significantly improves the pressure response range of the phosphors, and the decay degree of the overall integral intensity and the fluorescence intensity ratio (FIR) were first proposed to be used for pressure sensing. Therefore, multi-mode optical pressure sensing can be realized with the use of the LMAS:Eu2+,Mn2+ phosphor.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Nan Li, Yuanyuan Fang, Long Zhang, Kai Wang, Bo Zou
Summary: In this study, we investigated the optical and structural responses of a one-dimensional metal halide (HMTA)(3)Pb2Br7 under pressure. We found that applying mild pressure (<0.6 GPa) resulted in enhanced broadband emission and prolonged carrier lifetime. Additionally, the band gap narrowed with pressure due to enhanced orbital coupling between the metal and halogen. Our high-pressure studies not only reveal the regulation mechanism of self-trapped exciton (STE) emission in one-dimensional metal halides, but also highlight the potential of pressure treatment as a powerful strategy to tune the emission of white-light materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Yuxiang Dai, Haichao Liu, Ting Geng, Ruijie Duan, Xiaoming Li, Yongli Liu, Wengang Liu, Ben-Guo He, Laizhi Sui, Kai Wang, Bo Zou, Bing Yang, Yang Qi
Summary: The wide application of excimer materials in the OLED field is mainly driven by the regulation of their stacking structure. This study designed three anthracene derivative molecules with sterically hindered substituents and prepared crystals with different aggregating structures to investigate the relationship between their structures and properties. The study found that under high pressures, these anthracene groups exhibit enhanced fluorescence during the formation of excimers, while the ones that have already formed excimers under ambient conditions show a wider red-shift range. The piezochromic fluorescence behavior observed indicates that regulating the aggregation mode of anthracene groups can meet different application requirements and guide the expansion of excimer materials' usage.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Zhiqiang Yang, Zhiyuan Fu, Haichao Liu, Min Wu, Nan Li, Kai Wang, Shi-Tong Zhang, Bo Zou, Bing Yang
Summary: The pressure-dependent luminescence behavior of purely organic compounds is an important topic in the field of stimulus-responsive smart materials. This study filled in the gap regarding pressure-dependent room-temperature phosphorescence (RTP) of purely organic compounds by investigating the model molecule selenanthrene (SeAN) with a folded geometry. It discovered a unique phenomenon of pressure-induced RTP enhancement in an SeAN crystal, along with an underlying mechanism involving folding-induced spin-orbit coupling enhancement. In addition, pressure-induced RTP enhancement was observed in an analog of SeAN, which exhibited white-light emission.
Article
Chemistry, Physical
Jingwen Chen, Linlin Li, Wenhao Ran, Di Chen, Lili Wang, Guozhen Shen
Summary: A machine learning-based voice recognition platform was developed using a high sensitivity MXene/MoS2 flexible vibration sensor. The sensor exhibited high sensitivity and a broad frequency response, and achieved high speaker recognition accuracy through a machine learning-based artificial neural network.