Understanding and improving photoelectrochemical performance of Bi2O3/Bi2S3 composite

Kim, Ji Hyeon; Lim, Taewaen; Park, Joon Yong; Ma, Ahyeon; Jung, Haeun; Kim, Ha Young; Cho, Sung Ki; Yoon, Ho Kyoung; Nam, Ki Min

doi:10.1039/c9nj02913c

Cited by 11 publications

(7 citation statements)

References 40 publications

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“…It has been shown that Bi 2 S 3 coupled with TiO 2 or Bi 2 O 2 CO 3 to form Bi 2 S 3 –TiO 2 and Bi 2 S 3 –Bi 2 O 2 CO 3 heterogeneous systems demonstrates enhanced photoactive performance for photosensitive device applications. , Furthermore, Bi 2 O 3 -based heterogeneous systems such as Bi 2 O 3 –BiOCl, CuBi 2 O 4 –Bi 2 O 3 , and TiO 2 –Bi 2 O 3 all demonstrate improved photoactive performance compared with their single constituent counterparts. ,, Based on the above discussion, it might be interesting to integrate Bi 2 S 3 with Bi 2 O 3 to form a heterogeneous system and investigate the photoactive performance of this hybrid system. A well-defined Bi 2 O 3 –Bi 2 S 3 composite has been synthesized using an ultrasonic-assisted synthetic method on a conductive substrate, and the resulting Bi 2 O 3 –Bi 2 S 3 composite shows highly enhanced photoelectrochemical activity . Branched Bi 2 O 3 –Bi 2 S 3 composites synthesized by a simple hydrothermal method without toxic substances demonstrate high photocatalytic activity under visible-light illumination .…”

Section: Introductionmentioning

confidence: 99%

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets

et al. 2023

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Porous Bi2O3–Bi2S3 composite sheets were constructed through a combinational methodology of chemical bath deposition and hydrothermal reaction. The Na2S precursor concentration in the hydrothermal solution was varied to understand the correlation between the vulcanization degree and structure evolution of the porous Bi2O3–Bi2S3 composite sheets. The control of the etching rate of the Bi2O3 sheet template and the regrowth rate of Bi2S3 crystallites via suitable sulfide precursor concentration during the hydrothermal reaction utilizes the formation of porous Bi2O3–Bi2S3 sheets. Due to the presence of Bi2S3 crystallites and porous structure in the Bi2O3–Bi2S3 composites, the improved visible-light absorption ability and separation efficiency of photogenerated charge carriers are achieved. Furthermore, the as-synthesized Bi2O3–Bi2S3 composite sheets obtained from vulcanization with a 0.01M Na2S precursor display highly enhanced photocatalytic degradation toward methyl orange (MO) dyes compared with the pristine Bi2O3 and Bi2S3. The porous Bi2O3–Bi2S3 sheet system shows high surface active sites, fast transfer, high-efficiency separation of photoinduced charge carriers, and enhanced redox capacity concerning their constituent counterparts. This study affords a promising approach to constructing Bi2O3-based Z-scheme composites with a suitable microstructure and Bi2O3/Bi2S3 phase ratio for photoactive device applications.

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Section: Introductionmentioning

confidence: 99%

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets

et al. 2023

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“…Particularly, VI-bismuth materials Bi2X3 are functional compounds [3] and very attractive materials for several applications including: photovoltaics [4], thermoelectrics [5], photoelectrochemicals [6] , photocatalytic activity [7] , micro-and optoelctronic devices [8] and infrared detectors [9]. Among Bi2X3 materials, the bismuth sulfide 𝐵𝑖 2 𝑆 3 -bismuthiniteis a metal chalcogenide with a very attractive and intriguing properties : a large optical absorption coefficient (> 10 5 𝑐𝑚 −1 for 𝜆 < 500 𝑛𝑚), high electron mobility (> 500 𝑐𝑚 𝑉 −1 𝑠 −1 ) [10] and so on.…”

Section: Introductionmentioning

confidence: 99%

Spin–orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the ternary bismuth sulfide Bi2S2.75Se0.25: Ab-initio calculations

Abdallah

Ouerghui

2021

Opt Quant Electron

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Although the relevant properties of the bismuthinite 𝐵𝑖 2 𝑆 3 , it was recently approved that the substitution of Se atoms in the 𝐵𝑖 2 𝑆 3 lattice can significantly enhance its electro-optical properties.In the present work, a detailed study on the structural, electronic and optical properties of 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 has been carried out based on first principle calculations. The simultaneous effect of Se-doping and spin-orbit coupling (SOC) on bismuth sulfide 𝐵𝑖 2 𝑆 3 was investigated. Our calculations show that 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 exhibits a narrow direct band gap of 1.062 eV after inclusion of the (SOC). The calculation of the carrier effective masses indicates that 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 may possess a high electron mobility material which is in accordance with experimental studies. The linear absorption optical spectra for both 𝐵𝑖 2 𝑆 3 and 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 show that doping bismuthinite with (Se) increases the optical absorption coefficient in the visible range and takes a value up to 10 10 5 𝑐𝑚 −1 . In addition, the dielectric function, optical conductivity and the energy loss function of 𝐵𝑖 2 𝑆 3 and 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 were also derived. The addition of the (Se) content induces a red shift in agreement with experimental studies. A noticeable effect of the (SOC) on the linear optical parameters was observed. The stability of the excitons was also studied by the estimation of the binding energy value. The dispersion energy parameters of 𝐵𝑖 2 𝑆 3 and 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 were estimated using a single oscillator model. Some nonlinearities have been computed with and without inclusion of (SOC) showing that 𝐵𝑖 2 𝑆 2.75 𝑆𝑒 0.25 with large nonlinear optical parameters is promising candidate in photonic switching applications.

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“…Particularly, VI-bismuth materials Bi2X3 are functional compounds [3] and very attractive materials for several applications including: photovoltaics [4], thermoelectrics [5], photoelectrochemicals [6] , photocatalytic activity [7] , micro-and optoelctronic devices [8] and infrared detectors [9]. Among Bi2X3 materials, the bismuth sulfide 2 3 -bismuthiniteis a metal chalcogenide with a very attractive and intriguing properties : a large optical absorption coefficient (> 10 5 −1 for < 500…”

Section: Introductionmentioning

confidence: 99%

Spin-orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the Ternary Bismuth Sulfide Bi2S2.75Se0.25: Ab-initio calculations

Abdallah¹,

Ouerghui²

2021

Preprint

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Although the relevant properties of the bismuthinite \({Bi}_{2}{S}_{3}\), it was recently approved that the substitution of Se atoms in the \({Bi}_{2}{S}_{3}\) lattice can significantly enhance its electro-optical properties. In the present work, a detailed study on the structural, electronic and optical properties of \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\) has been carried out based on first principle calculations. The simultaneous effect of Se-doping and spin-orbit coupling (SOC) on bismuth sulfide \({Bi}_{2}{S}_{3}\) was investigated. Our calculations show that \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\) exhibits a narrow direct band gap of 1.062 eV after inclusion of the (SOC). The calculation of the carrier effective masses indicates that \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\) may possess a high electron mobility material which is in accordance with experimental studies. The linear absorption optical spectra for both \({Bi}_{2}{S}_{3}\) and \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\)show that doping bismuthinite with (Se) increases the optical absorption coefficient in the visible range and takes a value up to \(10 {10}^{5}{cm}^{-1}\). In addition, the dielectric function, optical conductivity and the energy loss function of \({Bi}_{2}{S}_{3}\) and \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\)were also derived. The addition of the (Se) content induces a red shift in agreement with experimental studies. A noticeable effect of the (SOC) on the linear optical parameters was observed. The stability of the excitons was also studied by the estimation of the binding energy value. The dispersion energy parameters of \({Bi}_{2}{S}_{3}\) and \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\)were estimated using a single oscillator model. Some nonlinearities have been computed with and without inclusion of (SOC) showing that \({Bi}_{2}{S}_{2.75}{Se}_{0.25}\)with large nonlinear optical parameters is promising candidate in photonic switching applications.

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Understanding and improving photoelectrochemical performance of Bi₂O₃/Bi₂S₃ composite

Abstract: The simple and fast ultrasonic-assisted synthesis of high-performance, low-interfacial-resistance Bi2O3/Bi2S3 composite semiconductors is demonstrated.

Cited by 11 publications

References 40 publications

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets

Spin–orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the ternary bismuth sulfide Bi2S2.75Se0.25: Ab-initio calculations

Spin-orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the Ternary Bismuth Sulfide Bi2S2.75Se0.25: Ab-initio calculations

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Understanding and improving photoelectrochemical performance of Bi2O3/Bi2S3 composite

Abstract: The simple and fast ultrasonic-assisted synthesis of high-performance, low-interfacial-resistance Bi2O3/Bi2S3 composite semiconductors is demonstrated.

Cited by 11 publications

References 40 publications

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi2O3–Bi2S3 Composite Sheets

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi2O3–Bi2S3 Composite Sheets

Spin–orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the ternary bismuth sulfide Bi2S2.75Se0.25: Ab-initio calculations

Spin-orbit coupling effect on electronic, linear and nonlinear optical properties of Bi2S3 and the Ternary Bismuth Sulfide Bi2S2.75Se0.25: Ab-initio calculations

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Understanding and improving photoelectrochemical performance of Bi₂O₃/Bi₂S₃ composite

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets

Controllable Crystal Growth and Improved Photocatalytic Activity of Porous Bi₂O₃–Bi₂S₃ Composite Sheets