High-performance self-powered photodetector based on Bi2O2Se nanosheets

Chen, Gexiang; Wu, Jie; Wang, Bo; Li, Jun; Qi, Xiang

doi:10.1007/s00339-020-03759-0

Cited by 17 publications

(21 citation statements)

References 40 publications

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“…[11,[15][16][17] The combination of these properties renders it a promising candidate for various novel optoelectronic devices at the near-infrared (NIR) and mid-infrared (mid-IR) regions. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] Recently, bismuth oxytelluride (Bi 2 O 2 Te), as a new addition to the bismuth oxychalcogenide family, has attracted increasing research attention. [33] The electrostatic force-connected layered structure and oxygen-containing component contribute significantly to the high semiconductor stability of Bi 2 O 2 Te even under humid or high-temperature conditions.…”

Section: Introductionmentioning

confidence: 99%

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Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Hui

Han

et al. 2022

Advanced Optical Materials

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Figure 6. a) The optical spectrum with a central wavelength of 1559.5 nm and a modulation period of 1.31 nm, b) oscilloscope trace of the bound state pulse sequence, c) RF spectrum of the output pulse train, d) the autocorrelation trace of the 2nd order soliton molecules, e) optical spectra of the 3rd and 4th order soliton molecules, and f) autocorrelation trace of the 3rd and 4th order soliton molecules.

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Section: Introductionmentioning

confidence: 99%

“…[ 11,15–17 ] The combination of these properties renders it a promising candidate for various novel optoelectronic devices at the near‐infrared (NIR) and mid‐infrared (mid‐IR) regions. [ 18–32 ]…”

Section: Introductionmentioning

confidence: 99%

Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Hui

Han

et al. 2022

Advanced Optical Materials

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“…49,50 Recently, Chen et al successfully synthesized Bi 2 O 2 Se nanosheets via a facile one-step hydrothermal method and used these nanosheets to fabricate electrodes for a self-powered photodetector that exhibited preferable photoresponse activity. 51 Ghosh et al also synthesized free-standing, single-crystalline nanosheets of Bi 2 O 2 Se via a simple solution-based method by the reaction of bismuth nitrate (Bi(NO 3 ) 3 ) and selenourea (SeC(NH 2 ) 2 ) in an alkaline medium at room temperature. 52 The above-mentioned simple, rapid, and scalable wet chemical procedures at room temperature make Bi 2 O 2 Se a desirable material for PEC-type photodetectors.…”

Section: Introductionmentioning

confidence: 99%

“…So far, 2D Bi 2 O 2 Se has been regularly synthesized by CVD, solution-assisted in situ selenization, and solution-based methods. However, the synthesis process usually involves high temperatures and highly toxic raw materials. , Recently, Chen et al successfully synthesized Bi 2 O 2 Se nanosheets via a facile one-step hydrothermal method and used these nanosheets to fabricate electrodes for a self-powered photodetector that exhibited preferable photoresponse activity . Ghosh et al also synthesized free-standing, single-crystalline nanosheets of Bi 2 O 2 Se via a simple solution-based method by the reaction of bismuth nitrate (Bi(NO 3 ) 3 ) and selenourea (SeC(NH 2 ) 2 ) in an alkaline medium at room temperature .…”

Section: Introductionmentioning

confidence: 99%

Flexible Self-Powered Photoelectrochemical Photodetectors Based on Cellulose-Based Hydrogel Electrolytes and Bi₂O₂Se Nanosheets

Li,

Wu,

Zhang

et al. 2024

ACS Appl. Nano Mater.

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Photoelectrochemical (PEC)-type photodetectors are gaining significant interest as neoteric self-powered devices, owing to their high spectral responsivity and quick photoresponse. However, the underlying leakage issue makes the aqueous electrolyte contained inside PEC-type photodetectors unsuitable for manufacturing flexible optoelectronics. In this study, we report a flexible, self-powered PEC-type photodetector based on a cellulose-based hydrogel. Using a cellulose-based hydrogel electrolyte as the electrontransferring medium and two-dimensional Bi 2 O 2 Se nanosheet-coated indium tin oxide glass as the working electrode, the photodetector exhibits excellent self-powered capability. The hydrogel-based PEC photodetector exhibits a broadband photoresponse in the range of 365−850 nm. Moreover, under the condition of an illumination wavelength of 365 nm at a bias voltage of 0.6 V, the photodetector exhibits a responsivity of 0.68 mA/W, a detectivity of 2.44 × 10 8 Jones, and a fast response time of 85/103 ms, which are comparable to those of photodetectors based on traditional aqueous electrolytes. Additionally, the hydrogel-based PEC photodetectors show good flexibility and stability, maintaining more than 70.3% of their photocurrent density even after 100 cycles of bending at 120°, and no obvious photocurrent decay is observed after storage for 1 week. Based on these results, cellulose-based hydrogel electrolytes have significant potential for future applications in selfpowered photodetectors.

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“…Furthermore, Bi 2 O 2 Se possesses a moderate band gap (≈0.8 eV), which realizes photodetection over a wide spectral range from ultraviolet light to near-infrared light. Based on these reasons, Bi 2 O 2 Se is considered as an ideal candidate of next generation optoelectronic devices [11][12].…”

Section: Introductionmentioning

confidence: 99%

PVP-Assisted Hydrothermal Synthesis of Bi2O2Se Nanosheets for Self-Powered Photodetector

Zhang

Wang

Zeng

et al. 2022

J. Solar Eneg. Res. Updat.

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Bi2O2Se nanosheets were successfully synthesized via a facile one-step PVP-assisted hydrothermal process for the first time. Corresponding characterizations, such as XRD, XPS, SEM and TEM, were carried out to investigate the formation of the products on the amount of PVP in the reaction system. Results revealed that the single-crystalline Bi2O2Se nanosheets with small mean lateral size of 176.3 nm were obtained when the amount of PVP is 0.75 g. Single-crystalline Bi2O2Se nanosheets self-powered photodetector exhibited excellent photodetection performance, superior to that of self-powered photodetectors based on the products synthesized without PVP and other nanomaterials. Under the illumination of 365 nm ultraviolet light, the rise time, responsivity and detectivity could approach up to 9 ms, 14.24 mA/W and 3.16×108 Jones, respectively. Bi2O2Se devices have high photoresponse even in the visible and near infrared bands due to its suitable band gap. The present work provides a novel preparation route of Bi2O2Se via hydrothermal method and PVP assisted synthesis of Bi2O2Se nanosheets is reported for the first time. Bi2O2Se nanosheets self-powered photodetector exhibited excellent photodetection performance and points out a direction for the evolution of self-powered photodetectors in the in the future.

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High-performance self-powered photodetector based on Bi2O2Se nanosheets

Cited by 17 publications

References 40 publications

Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Flexible Self-Powered Photoelectrochemical Photodetectors Based on Cellulose-Based Hydrogel Electrolytes and Bi₂O₂Se Nanosheets

PVP-Assisted Hydrothermal Synthesis of Bi2O2Se Nanosheets for Self-Powered Photodetector

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High-performance self-powered photodetector based on Bi2O2Se nanosheets

Cited by 17 publications

References 40 publications

Bi2O2Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Bi2O2Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Flexible Self-Powered Photoelectrochemical Photodetectors Based on Cellulose-Based Hydrogel Electrolytes and Bi2O2Se Nanosheets

PVP-Assisted Hydrothermal Synthesis of Bi2O2Se Nanosheets for Self-Powered Photodetector

Contact Info

Product

Resources

About

Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Bi₂O₂Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

Flexible Self-Powered Photoelectrochemical Photodetectors Based on Cellulose-Based Hydrogel Electrolytes and Bi₂O₂Se Nanosheets