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Controllable and la...
Controllable and large-scale synthesis of carbon quantum dots for efficient solid-state optical devices
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- Li, Weihua (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Wang, Xiaohan (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Lin, Jishuai (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Meng, Xiangyong (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Wang, Lihua (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Wang, Maorong (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Jing, Qiang (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Song, Yang (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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- Vomiero, Alberto (författare)
- Luleå tekniska universitet,Materialvetenskap,Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice Via Torino 155, 30172 Venezia Mestre, Italy
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- Zhao, Haiguang (författare)
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P.R. China
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College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, No 308 Ningxia Road, Qingdao 266071, P.R. China Materialvetenskap (creator_code:org_t)
- Elsevier Ltd, 2024
- 2024
- Engelska.
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Ingår i: Nano Energy. - : Elsevier Ltd. - 2211-2855 .- 2211-3282. ; 122
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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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
- Carbon quantum dots (C-dots) showed excellent structure-tunable optical properties, mainly composed of carbon, nitrogen and oxygen. They have been used for various types of solid-state optical devices. Due to the photoluminescence quenching caused by aggregation, it is a challenge to produce high quantum yield and large Stokes shift C-dots via controllable and simple approaches. In this work, we demonstrated a microwave assisted heating approach for the high-quality C-dots production with ten grams scale per batch in less than 4 min. The addition of metal cation promoted the formation of the foam-structure by forming carboxyl-metal-amine complex, enabling the spatial confined growth of the C-dots in a solid-state, contributing to the high quantum yield (QY) of 73% with a Stokes shift of 0.65 eV. By tuning the structure of the C-dots, excitation dependent and independent photoluminescent (PL) behavior were achieved because of the formation of the different types of energy states evidenced by transient PL and femtosecond transient absorption spectroscopy. These optical properties enable the C-dots to be successfully integrated in luminescent solar concentrators (LSCs), having an external optical efficiency of 3.0% and a power conversion efficiency of 1.3% (225 cm2) and an excitation-dependent high-level anticounterfeiting fluorescent code, showing a great potential for solid-state optical system.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Anti-counterfeiting
- Carbon quantum dots
- Foam structure
- Luminescent solar concentrators
- Microwave reaction
- Experimentell fysik
- Experimental Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Li, Weihua
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Wang, Xiaohan
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Lin, Jishuai
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Meng, Xiangyong
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Wang, Lihua
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Wang, Maorong
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visa fler...
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Jing, Qiang
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Song, Yang
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Vomiero, Alberto
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Zhao, Haiguang
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visa färre...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Annan materialte ...
- Artiklar i publikationen
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Nano Energy
- Av lärosätet
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Luleå tekniska universitet