6 documents found, page 1 of 1
O poder da nanofabricação: substratos de alta performance para células solares ...
Teixeira, J.T.; Lopes, T.S.; Oliveira, K.; Curado, M.A.; Cunha, J.M.V.; Ribeiro, R.M.; Oliveira, A.J.N.; Barbosa, J.R.S.; Violas, A.; Rocha, C.RESUMO: O grupo de Nanofabrication for Optoelectronic Applications -NOA- inserido no International Iberian Nanotechnology Laboratory (INL) tem focado grande parte da sua investigação e operações no desenvolvimento de substratos de alta performance, baseados em diferentes esquemas de manipulação da luz para aplicação em células solares de Cu(In,Ga)Se2 (CIGS). Estes substratos baseiam-se na inserção de uma camada...
O poder da nanofabricação: substratos de alta performance para células solares ...
Teixeira, J.T.; Lopes, T.S.; Oliveira, K.; Curado, M.A.; Cunha, J.M.V.; Ribeiro, R.M.; Oliveira, A.J.N.; Barbosa, J.R.S.; Violas, A.; Rocha, C.RESUMO: O grupo de Nanofabrication for Optoelectronic Applications -NOA- inserido no International Iberian Nanotechnology Laboratory (INL) tem focado grande parte da sua investigação e operações no desenvolvimento de substratos de alta performance, baseados em diferentes esquemas de manipulação da luz para aplicação em células solares de Cu(In,Ga)Se2 (CIGS). Estes substratos baseiam-se na inserção de uma camada...
Front passivation of Cu(In,Ga)Se2 solar cells using Al2O3: Culprits and benefits
Curado, M.A.; Teixeira, J.P.; Monteiro, M.; Ribeiro, E.F.M.; Vilão, R.C.; Alberto, H.V.; Cunha, J.M.V.; Lopes, T.S.; Oliveira, K.; Donzel-Gargand, O.In the past years, the strategies used to break the Cu(In,Ga)Se2 (CIGS) light to power conversion efficiency world record value were based on improvements of the absorber optoelectronic and crystalline properties, mainly using complex post-deposition treatments. To reach even higher efficiency values, further advances in the solar cell architecture are needed, in particular, with respect to the CIGS interfaces....
Front passivation of Cu(In,Ga)Se2 solar cells using Al2O3: culprits and benefits
Curado, M. A.; Teixeira, J. P.; Monteiro, M.; Ribeiro, E. F. M.; Vilão, R.C.; Alberto, H. V.; Cunha, J. M. V.; Lopes, T.S.; Oliveira, K.In recent years, the strategies used to break the Cu(In,Ga)Se2 (CIGS) world record of light to power conversion efficiency, were based on improvements of the absorber optoelectronic and crystalline properties, mainly using complex post-deposition treatments. To reach even higher efficiency values, advances in the solar cell architecture are needed focusing in the CIGS interfaces. In this study, we evaluate the ...
Decoupling of optical and electrical properties of rear contact CIGS solar cells
Cunha, J. M. V.; Lopes, T. S.; Bose, S.; Hultqvist, A.; Chen, W.-C.; Donzel-Gargand, O.; Ribeiro, R. M.; Oliveira, A. J. N.; Edoff, M.; Fernandes, P. A.A novel architecture that comprises rear interface passivation and increased rear optical reflection is presented with the following advantages: i) an enhanced optical reflection is achieved by depositing a metallic layer over the Mo rear contact; ii) the addition of a sputtered Al2O3 layer improves the interface quality with CIGS; and, iii) the rear-openings are refilled with Mo to maintain the optimal ohmic e...
Rear optical reflection and passivation using a nanopatterned metal/dielectric ...
Lopes, T. S.; Cunha, J. M. V.; Bose, S.; Barbosa, J. R. S.; Borme, J.; Donzel-Gargand, O.; Rocha, C.; Silva, R.; Hultqvist, A.; Chen, W.-C.Currently, one of the main limitations in ultrathin Cu(In,Ga)Se2 (CIGS) solar cells are the optical losses, since the absorber layer is thinner than the light optical path. Hence, light management, including rear optical reflection and light trapping is needed. In this work we focus on increasing the rear optical reflection. For this, a novel structure based on having a metal interlayer in between the Mo rear c...