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An STM – SEM setup ...
An STM – SEM setup for characterizing photon and electron induced effects in single photovoltaic nanowires
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- Holmér, Jonatan, 1990 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zeng, Lunjie, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kanne, T. (författare)
- Niels Bohr Institute
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- Krogstrup, P. (författare)
- Niels Bohr Institute
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- Nygard, J. (författare)
- Niels Bohr Institute
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- De Knoop, Ludvig, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Olsson, Eva, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- Engelska.
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Ingår i: Nano Energy. - : Elsevier BV. - 2211-2855. ; 53, s. 175-181
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Vertical arrays of semiconductor nanowires show great potential for material-efficient and high-performance solar cells. The characterization and correlation between material structure and properties of the individual nanowires are crucial for the continued performance improvement of such devices. In this work, we developed a method with a scanning tunneling microscope (STM) probe inside a scanning electron microscope (SEM) to enable the studies of single photovoltaic nanowires. The STM probe is used to contact individual nanowires in ensembles. We combine the STM-SEM with an in situ light emitting diode (LED) illumination source to study both the electrical and photovoltaic properties of vertical GaAs nanowires with radial p-i-n junctions. We also illustrate that the local charge separation ability within the nanowires can be studied by electron beam induced current (EBIC) measurements. The in situ SEM setup allows the correlation between properties and nanowire structure. The data show that the quality of the electrical contact to the semiconductor nanowire is crucial to be able to investigate the inherent properties of the nanowires. We have established a procedure to make high-quality ohmic contacts to the nanowires with the STM probe. We also show that the effect of mechanical strain on the electrical properties can be investigated by the STM-SEM setup.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- STM – SEM
- Nanowires
- EBIC
- Solar cells
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Holmér, Jonatan, ...
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Zeng, Lunjie, 19 ...
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Kanne, T.
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Krogstrup, P.
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Nygard, J.
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De Knoop, Ludvig ...
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visa fler...
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Olsson, Eva, 196 ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Annan fysik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Annan kemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
- Artiklar i publikationen
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Nano Energy
- Av lärosätet
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Chalmers tekniska högskola