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http://hdl.handle.net/1942/31468
Title: | Decoupling of Optical and Electrical Properties of Rear Contact CIGS Solar Cells | Authors: | Cunha, JMV LOPES, Tomas Bose, S Hultqvist, A Chen, W.C. Donzel-Gargand, O Ribeiro, RM Oliveira, AJN Edoff, M Fernandes, PA Salome, PMP |
Issue Date: | 2019 | Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | Source: | IEEE Journal of Photovoltaics, 9 (6) , p. 1857 -1862 | Abstract: | A novel architecture that comprises rear interface passivation and increased rear optical reflection is presented with the following advantages: i) enhanced optical reflection is achieved by the deposition of a metallic layer over the Mo rear contact; ii) improved interface quality with CIGS by adding a sputtered Al2O3 layer over the metallic layer; and, iii) optimal ohmic electrical contact ensured by rear-openings refilling with a second layer of Mo as generally observed from the growth of CIGS on Mo. Hence, a decoupling between the electrical function and the optical purpose of the rear substrate is achieved. We present in detail the manufacturing procedure of such type of architecture together with its benefits and caveats. A preliminary analysis showing an architecture proof-of-concept is presented and discussed. | Keywords: | Cu(In,Ga)Se-2 (CIGS);passivation;semiconductors;ultrathin | Document URI: | http://hdl.handle.net/1942/31468 | ISSN: | 2156-3381 | e-ISSN: | 2156-3403 | DOI: | 10.1109/JPHOTOV.2019.2933357 | ISI #: | WOS:000504310400054 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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