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Transparent Back Co...
Transparent Back Contacts for Superstrate (AG,CU)(IN,GA)SE2 Thin Film Solar Cells
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Simchi, H. (författare)
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- Larsen, J. K. (författare)
- Uppsala universitet,Fasta tillståndets elektronik
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Shafarman, W. N. (författare)
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: IEEE Journal of Photovoltaics. - 2156-3381 .- 2156-3403. ; 5:1, s. 406-409
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Molybdenum oxide (MoO3) and tungsten oxide (WO3) are considered as transparent back contacts for (Ag,Cu)(In,Ga)Se-2 thin film solar cells. MoO3 and WO3 films were deposited by reactive RF sputtering at room temperature in an Ar/O-2 ambient on (Ag,Cu)(In,Ga) Se-2 absorber layers with various Ga/(Ga + In) and Ag/(Ag + Cu) ratios. Determination of the valence band offsets by XPS showed that Ag-alloying of absorber layer changes the energy band alignment at the absorber-back contact interface with MoO3 and WO3 contacts. This produces a primary contact with lower valence band offset compared with Cu(In,Ga) Se-2 counterparts. The effect is less significant in films with Ga > 0.5 and Ag > 0.5 (corresponding to E-g > 1.4 eV) probably due to the different nature of ordered vacancy compounds forming near the surface phases.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
Nyckelord
- Back contact
- oxide
- solar cell
- XPS
- Engineering Science with specialization in Electronics
- Teknisk fysik med inriktning mot elektronik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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