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Quantum-dot-induced...
Quantum-dot-induced optical transition enhancement in InAs quantum-dot-embedded p-i-n GaAs solar cells
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- Shang, X. -J (author)
- KTH,Teoretisk kemi och biologi,Chinese Academy of Sciences
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- He, J.-F. (author)
- Chinese Academy of Sciences
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- Li, M.-F. (author)
- Chinese Academy of Sciences
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- Zhan, F. (author)
- Chinese Academy of Sciences
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- Ni, H.-Q. (author)
- Chinese Academy of Sciences
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- Niu, Z.-C. (author)
- Chinese Academy of Sciences
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- Pettersson, Håkan (author)
- Högskolan i Halmstad,Tillämpad matematik och fysik (MPE-lab),Nanovetenskap
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- Fu, Ying, 1964- (author)
- KTH,Teoretisk kemi och biologi,Division of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Stockholm, Sweden
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- Pettersson, Hans (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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(creator_code:org_t)
- New York, N.Y. American Institute of Physics (AIP), 2011
- 2011
- English.
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In: Applied Physics Letters. - New York, N.Y. : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 99:11, s. 113514-113514-3
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Abstract
Subject headings
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- Photocurrents (PCs) of three p–i–n GaAs solar cells, sample A with InAs quantum dots (QDs) embedded in the depletion region, B with QDs in the n region, and C without QDs, were studied experimentally and theoretically. Above GaAs bandgap, the PC of A is increased, while B is decreased with respect to C, since in A, the QD-induced reflection of hole wave function increases its overlap with electron wave function so that the optical transition rate is enhanced, while carrier mobility in B is reduced due to QD-induced potential variations. Moreover, A and B have increased PCs in the sub-GaAs-bandgap range due to QD optical absorptions.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Efficiency
- Photocurrent
- Quantum dots
- Solar cells
- Well infrared photodetector
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Shang, X. -J
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He, J.-F.
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Li, M.-F.
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Zhan, F.
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Ni, H.-Q.
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Niu, Z.-C.
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show more...
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Pettersson, Håka ...
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Fu, Ying, 1964-
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Pettersson, Hans
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Applied Physics ...
- By the university
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Halmstad University
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Royal Institute of Technology
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Lund University