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Real-time observati...
Real-time observation of nucleation and growth of Au on CdSe quantum dot templates
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- Paul, Neelima (author)
- Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany.
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- Huang, Junyu (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Liu, Chang (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Lin, Taidong (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Ouyang, Chenghao (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Liu, Zhaoyu (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Chen, Chunfeng (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Chen, Zhongyi (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Weng, Zhiyin (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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- Schwartzkopf, Matthias (author)
- Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22603 Hamburg, Germany.
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- Roth, Stephan V. (author)
- KTH,Ytbehandlingsteknik,Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22603 Hamburg, Germany.
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- Mueller-Buschbaum, Peter (author)
- Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany.;Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, James Franck Str 1, D-85748 Garching, Germany.
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- Paul, Amitesh (author)
- Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China.
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Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany Guangdong Technion Israel Inst Technol, Shantou 515063, Guangdong, Peoples R China. (creator_code:org_t)
- 2021-09-21
- 2021
- English.
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In: Scientific Reports. - : Springer Nature. - 2045-2322. ; 11:1
- Related links:
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https://doi.org/10.1...
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https://www.nature.c...
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Abstract
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- Semiconductor quantum dot (QD) arrays can be useful for optical devices such as lasers, solar cells and light-emitting diodes. As the size distribution influences the band-gap, it is worthwhile to investigate QDs prepared using different solvents because each of them could influence the overall morphology differently, depending on the ligand network around individual QDs. Here, we follow the nucleation and growth of gold (Au) on CdSe QD arrays to investigate the influence of surface ligands and thereby realized interparticle distance between QDs on Au growth behaviour. We particularly emphasize on the monolayer stage as the Au decoration on individual QDs is expected at this stage. Therefore, we sputter-deposit Au on each QD array to investigate the morphological evolution in real-time using time-resolved grazing-incidence small-angle X-ray scattering (GISAXS). The growth kinetics - independent of the template - signifies that the observed template-mediated nucleation is limited only to the very first few monolayers. Delicate changes in the Au growth morphology are seen in the immediate steps following the initial replicated decoration of the QD arrays. This is followed by a subsequent clustering and finally a complete Au coverage of the QD arrays.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Paul, Neelima
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Huang, Junyu
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Liu, Chang
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Lin, Taidong
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Ouyang, Chenghao
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Liu, Zhaoyu
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Chen, Chunfeng
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Chen, Zhongyi
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Weng, Zhiyin
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Schwartzkopf, Ma ...
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Roth, Stephan V.
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Mueller-Buschbau ...
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Paul, Amitesh
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Scientific Repor ...
- By the university
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Royal Institute of Technology