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Ultra-Small 2D PbS ...
Ultra-Small 2D PbS Nanoplatelets : Liquid-Phase Exfoliation and Emerging Applications for Photo-Electrochemical Photodetectors
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- Gao, Lingfeng (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Chen, Hualong (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Wang, Rui (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.;Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China.
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- Wei, Songrui (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Kuklin, Artem, V (författare)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Mei, Shan (författare)
- Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China.
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- Zhang, Feng (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Zhang, Ye (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Jiang, Xiantao (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Luo, Zhengqian (författare)
- Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China.
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- Xu, Shixiang (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China.
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- Zhang, Han (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.
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- Ågren, Hans (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China.
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Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Phys & Optoelect Engn,Shenzhen Key Lab Micro, Inst Microscale Optoelect,Collaborat Innovat Ctr, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China.;Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China. (creator_code:org_t)
- 2021-01-15
- 2021
- Engelska.
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Ingår i: Small. - : John Wiley & Sons. - 1613-6810 .- 1613-6829. ; 17:5
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 2D PbS nanoplatelets (NPLs) form an emerging class of photoactive materials and have been proposed as robust materials for high-performance optoelectronic devices. However, the main drawback of PbS NPLs is the large lateral size, which inhibits their further investigations and practical applications. In this work, ultra-small 2D PbS NPLs with uniform lateral size (11.2 +/- 1.7 nm) and thickness (3.7 +/- 0.9 nm, approximate to 6 layers) have been successfully fabricated by a facile liquid-phase exfoliation approach. Their transient optical response and photo-response behavior are evaluated by femtosecond-resolved transient absorption and photo-electrochemical (PEC) measurements. It is shown that the NPLs-based photodetectors (PDs) exhibit excellent photo-response performance from UV to the visible range, showing extremely high photo-responsivity (27.81 mA W-1) and remarkable detectivity (3.96 x 10(10) Jones), which are figures of merit outperforming currently reported PEC-type PDs. The outstanding properties are further analyzed based on the results of first-principle calculations, including electronic band structure and free energies for the oxygen evolution reaction process. This work highlights promising applications of ultra-small 2D PbS NPLs with the potential for breakthrough developments also in other fields of optoelectronic devices.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- DFT
- liquid-phase exfoliation
- nanoplatelets
- photodetectors
- transient optical response
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Gao, Lingfeng
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Chen, Hualong
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Wang, Rui
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Wei, Songrui
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Kuklin, Artem, V
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Mei, Shan
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visa fler...
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Zhang, Feng
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Zhang, Ye
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Jiang, Xiantao
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Luo, Zhengqian
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Xu, Shixiang
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Zhang, Han
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Ågren, Hans
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Uppsala universitet