Details

Autor(en) / Beteiligte

• Basol, B.M.
• Pinarbasi, M.
• Aksu, S.
• Freitag, J.
• Gonzalez, P.
• Johnson, T.
• Matus, Y.
• Metin, B.
• Narasimhan, M.
• Nayak, D.
• Norsworthy, G.
• Soltz, D.
• Wang, J.
• Wang, T.
• Zolla, H.

Titel

Status of electroplating based CIGS technology development

Ist Teil von

• 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 2009, p.002310-002315

Ort / Verlag

IEEE

Erscheinungsjahr

2009

Quelle

IEEE Xplore

Beschreibungen/Notizen

• CIGS is the leading thin film PV material in terms of it capability to yield high efficiency solar cells. Co-evaporation method already yielded solar cells with close to 20% efficiency. Despite this success, however, commercialization of CIGS has not been aggressive. One reason for this is the fact that CIGS is a complex material. The other reason is the difficulty of scaling up this technology while keeping the cost structure competitive. SoloPower has developed a low cost electrodeposition-based CIGS technology for large scale roll-to-roll manufacturing. The substrate is a flexible metallic foil. CIGS absorber layers are formed through annealing and thermal activation of electrodeposited precursor layers. Top and bottom contacts are formed by roll-to-roll sputtering approaches. The technique has excellent ability to control the composition of the deposited layers over large are substrates. After forming a roll of solar cells, devices are cut and then packaged in module structures. Flexible solar cells with an area of over 100 cm 2 were fabricated with over 12% efficiency. Over 1 m 2 area modules with an efficiency of 10% were also fabricated.