1Aberle A G 2000 Progress in Photovoltaics: Research and Appli- cations 8 473.
2Dauwe S, Schmidt J, Hezel R 2002 Photovoltaic Specialists Con- ference New Orleans, Louisiana, May 21-24, 2002 p 1246.
3Schmidt J, Merkle A, Brendel R, Hoex B, van de Sanden M C M, Kessels W M M 2008 Progress in Photovoltaics: Research and Am)lications 16 461.
4Hodson C, Kessels E 2009 Photovoltaics World 9 17.
5Hoex B, Heil S B S, Langereis E, van de Sanden M C M, Kessels W M M 2006Appl. Phys. Lett. 89 2112.
6Wu L H, Zhang X Z, Yu Y, Wan C H, Tan X Y 2011 Acta Phys. Sin. 60 7807.
7Benick J, Hoex B, van de Sanden M C M, Kessels W M M, Schultz O 2008 Appl. Phys. Lett. 92 3504.
8Schmidt J, Wemer F, Veith B, Zielke D, Book R, Tiba V, Poodt P, Roozeboom E Andrew Li, Cuevas A, Brendel R 2010 25th European Photovoltaic Solar Energy Conference Valencia, Spain, September 6--10, 2010 p1130.
9Lu H L, Xu M, Ding S J, Ren J, Zhang W 2006 Journal oflnor- ganic Materials 21 1217.
10Bakke J R, Pickrahn K L, Brennan T P, Bent S F 2011 Nanoscale 3 3482.
