Hydrothermal method deposition of TiO2/Bi2S3 composite film for solar cell photo-anode

Li, Xinli; Han, Xueyang; Zhu, Di; Chen, Yongchao; Li, Lihua; Ren, Fengzhang; Huang, Jinliang

doi:10.1088/2053-1591/ab044e

Cited by 8 publications

(6 citation statements)

References 26 publications

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“…27 Ti-BS showed increased absorption under the NIR window due to its high absorption coefficient (10 4 −10 5 cm −1 ) and low direct band gap (1.3 eV). 16,28 The absorption of Ti-BS/ HAp was further boosted, which suggested that Ti-BS/HAp had absorbed more NIR light. The absorption edge of Ti-BS/HAp (928.68 nm) also showed a red shift compared with that of Ti-BS (911.17 nm), further suggesting the stronger photocatalysis of Ti-BS/HAp.…”

Section: Resultsmentioning

confidence: 99%

“…From another standpoint, the one-dimensional semiconductor Bi 2 S 3 (BS) has significant ability to absorb NIR light and switches light into electrons and holes. 16 It can produce an electric field in the immediate environment under the irradiation of NIR light, thus obviating the need to implant electrodes. In addition, BS has great biocompatibility.…”

mentioning

confidence: 99%

“…Moreover, this technique is not known to have been interrupted by the solvent or the surrounding environment when performed in vivo. From another standpoint, the one-dimensional semiconductor Bi 2 S 3 (BS) has significant ability to absorb NIR light and switches light into electrons and holes . It can produce an electric field in the immediate environment under the irradiation of NIR light, thus obviating the need to implant electrodes.…”

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confidence: 99%

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Photoelectric-Responsive Extracellular Matrix for Bone Engineering

Fu¹,

Liu²,

Cui

et al. 2019

ACS Nano

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Using noninvasive stimulation of cells to control cell fate and improve bone regeneration by optical stimulation can achieve the aim of precisely orchestrating biological activities. In this study, we create a fast and repeatable photoelectric-responsive microenvironment around an implant using a bismuth sulfide/hydroxyapatite (BS/HAp) film. The unexpected increase of photocurrent on the BS/HAp film under near-infrared (NIR) light is mainly due to the depletion of holes through PO 4 3− from HAp and interfacial charge transfer by HAp compared with BS. The electrons activate the Na + channel of mesenchymal stem cells (MSCs) and change the cell adhesion in the intermediate environment. The behavior of MSCs is tuned by changing the photoelectronic microenvironment. RNA sequencing reveals that when photoelectrons transfer to the cell membrane, sodium ions flux and the membrane potential depolarizes to change the cell shape. Meanwhile, calcium ions fluxed and FDE1 was upregulated. Furthermore, the TCF/LEF in the cell nucleus began transcription to regulate the downstream genes involved in osteogenic differentiation, which is performed through the Wnt/Ca 2+ signaling pathway. This research has created a biological therapeutic strategy, which can achieve in vitro remotely, precisely, and noninvasively controlling cell differentiation behaviors by tuning the in vivo photoelectric microenvironment using NIR light.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Photoelectric-Responsive Extracellular Matrix for Bone Engineering

Fu¹,

Liu²,

Cui

et al. 2019

ACS Nano

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“…Many narrow band gap metal sulphides such as lead sulphide (PbS) [8], cadmium sulphide (CdS) [9], silver sulphide (Ag 2 S) [10], copper (I) sulphide (Cu 2 S) [11,12] and bismuth sulphide (Bi 2 S 3 ) [13] can be used as a photosensitiser of ZnO NRs. For this purpose, Bi 2 S 3 is selected due to its versatility and possible applications in solar cells [14], photocatalysis [15], photodiode arrays [16], infra-red (IR) spectroscopy and photoelectrochemical cells [17]. Bi 2 S 3 may potentially aid PECs to generate good photocurrent response due to the wide range of visible light absorption (∼1.3-1.7 eV), but it can also accelerate the recombination rate of (e − -h + ) pairs.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the combination with ZnO could potentially suppress the recombination rate and substantially improve the PECs performance. In order to assemble Bi 2 S 3 on ZnO nanorods, several approaches have been applied such as hydrothermal method [17,18], chemical bath deposition (CBD) [19] and, successive ionic layers and adsorption reaction (SILAR) technique [20]. Among them, SILAR technique is the easiest and most cost-effective method to produce Bi 2 S 3 coated on ZnO at ambient temperature.…”

Section: Introductionmentioning

confidence: 99%

Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Al-Zahrani

Zainal

Talib

et al. 2020

Mater. Res. Express

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The current study investigates Bi 2 S 3 thin films coated on ZnO NRAs with varying cationic concentrations through ionic layer adsorption and reaction (SILAR) technique. XRD patterns reveal that Bi 2 S 3 is successfully synthesised and exhibits orthorhombic structure on the wurtzite ZnO NRAs. The band gap energy (E g ) of Bi 2 S 3 /ZnO NRAs shows a notable red shift with increasing cationic concentration. The photocurrent density increases significantly with increasing concentration from 1 mM to 3 mM before decreases at higher concentration due to agglomeration of Bi 2 S 3 NPs and formation of recombination centres. The hybrid photoanode Bi 2 S 3 /ZnO NRAs at 3 mM exhibits the highest photocurrent value (1.92 mA cm −2 ), which is about six times greater than that of plain ZnO NRAs (0.337 mA cm −2 ). The high photoconversion efficiency value of 1.65% versus 0.5 V Ag A −1 g −1 C −1 l −1 is obtained by Bi 2 S 3 /ZnO NRAs (3 mM) in comparison with pristine ZnO NRs, mainly due to the stepwise band alignment edge and significant enhancement of morphological and optical properties. The study reveals that controlling the cationic concentration can potentially improve the photoconversion efficiency.

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Influence of Bi sources on TiO2/Bi2S3 composite films prepared by hydrothermal method

Liu

Zhu

et al. 2020

J Mater Sci: Mater Electron

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Hydrothermal method deposition of TiO₂/Bi₂S₃ composite film for solar cell photo-anode

Cited by 8 publications

References 26 publications

Photoelectric-Responsive Extracellular Matrix for Bone Engineering

Photoelectric-Responsive Extracellular Matrix for Bone Engineering

Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Influence of Bi sources on TiO2/Bi2S3 composite films prepared by hydrothermal method

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