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Fabrication of lead...
Fabrication of lead telluride quantum dots and their application in photoelectrochemical-type photodetectors
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- Zhao, Yiming (author)
- Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Minist Educ,Key Lab Organosilicon Mat Technol, Hangzhou 311121, Zhejiang, Peoples R China.;Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Peoples R China.
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- Kuklin, Artem V. (author)
- Uppsala universitet,Kemisk och biomolekylär fysik,Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden.
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- Qin, Mingli (author)
- Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Minist Educ,Key Lab Organosilicon Mat Technol, Hangzhou 311121, Zhejiang, Peoples R China.
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- Lei, Jinhua (author)
- Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Minist Educ,Key Lab Organosilicon Mat Technol, Hangzhou 311121, Zhejiang, Peoples R China.
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- Yu, Chengtao (author)
- Univ Quzhou, Inst Zhejiang, Quzhou 324000, Peoples R China.
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- Zhang, Han (author)
- Shenzhen Univ, Inst Microscale Optoelect, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China.
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- Ågren, Hans (author)
- Uppsala universitet,Kemisk och biomolekylär fysik,Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden.
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- Gao, Lingfeng (author)
- Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Minist Educ,Key Lab Organosilicon Mat Technol, Hangzhou 311121, Zhejiang, Peoples R China.
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Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol, Minist Educ,Key Lab Organosilicon Mat Technol, Hangzhou 311121, Zhejiang, Peoples R China;Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Peoples R China. Kemisk och biomolekylär fysik (creator_code:org_t)
- ELSEVIER SCI LTD, 2023
- 2023
- English.
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In: Nano Today. - : ELSEVIER SCI LTD. - 1748-0132 .- 1878-044X. ; 52
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- IV-VI semiconductors have been extensively applied in photo-electrochemical (PEC)-type photodetectors. However, electrolytes with relatively high concentrations have been addressed which could induce electro-chemical reactions during the measurement and result in a performance decrement. In this work, lead telluride quantum dots (PbTe QDs) with uniform size distribution are fabricated for PEC-type photodetectors and their performance is systematically investigated in electrolytes with concentrations as low as 10-4 mol/L. As revealed, the PbTe QD-based photodetectors show apparent photo-response with excellent stability in 1000 cycles (decrement of 0.018 % per cycle). In addition, the as-fabricated photodetectors show a broadband response to light in a region of 350-700 nm. These results are well supported by density functional theory calculations based on structural features and electronic and optical properties. Hence, we envisage that this work paves the way to fabricate high-performance photodetectors in relatively low-concentration electrolytes, which also can extend their applications to other optoelectronic devices.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Liquid phase exfoliation
- Quantum dots
- Low-concentration electrolyte
- Photodetector
- DFT
Publication and Content Type
- ref (subject category)
- art (subject category)
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