[1] Schropp E. I., Zeman M., Amorphous and Microcrystalline Silicon Solar Cells: Modelling, Materials and Device Technology, Kluwer Academic Pub. Boston and London (1998).
[2] Didden, H. Battjes,R. Machunze, B. Dam, R.Van de Krol,(2011).Appl. Physics ,110, 033717
[3] Castillo S.J, Mendoza-Galvan A, Ramirez-Bon R, Espinoza-Beltran F.J, Sotelo-Lerma M, Gonzalez-Hernandez J , Martinez G, (2000). Thin Solid Films, 10,373.
[4] Ullrich, H. Sakai and Y. Segawa, (2001). Thin Solid Films, 385, 220 .
[5] Birkmire R.W, Mc Candless B.E , Hegedus S.S, (1992).Sol. Energy ,12, 45 .
[6] Mahmoud S.A, Ibrahim A.A , Riad A.S, (2000).Thin Solid Films, 372, 144 .
[7] Ullrich B, Sakai H, Segawa Y, (2001).Thin Solid Films ,385, 220 .
[8] Ashour H, El Akkad F, (2001). Phys. Status Solidi (a), 184 ,175. Sharma S N, Sharma R K, Sood K. N and Singh .S .M,(2005).Mater. Chem. Phys, 93,368.
[9] Gibson. P. N, Özsan. M. E, Lincot. D, Cowache. P and Summa. D, (2000).Solid Thin Films, 34 ,361–362.
[10] Amlouk M, Dachraoul M. etal, (1987) .Solar Energy Materials, 15, 453.
[11] Bhattacharjee R,(2010). Assam University Journal of Science &Technology : Physical Sciences and Technology, 5,153-155.
[12] Malandrino G, Finocchiaro S T, Rossi P, Dapporto P and Fragal I L, (2005) .Chem. Commun. 45 5681.
[13] Kotkata M.F, Masoud A.E , Mohamed M.B, Mahmoud E.A, (2008).Chalcogenide Letters , 5, 209-217.
[14] Sanap V. B, PawarA B. H,(2009). Chalcogenide Letters ,6, 415 – 419.
[15] Khallaf H , Oladeji I.O, Chai G, Chow L, (2008) .Thin Solid Films ,516 ,7306–7312.
[16] Mondal, T.K. Chaudhuri and P. Pramanik, (1983).Sol. Energy Mater. 7, 431.
[17] Metin H, Sat F, Erat S, Ari M, (2008).Jou. OF Opto. Adv. Mater. , 10,2622 – 2630.
[18] Feitosa V, Miranda M. A, Sasaki J. M, Ara´ujo-Silva M. A, (2004). Brazilian Journal of Physics, 34, 656-658.
[19] Tran T, Tung Ngo D, Huong Vu T, Nguyen T.D, Ha C, (2010).Adv. Nat. Sci.: Nanosci. Nanotechnol. 1,015013 (1-4).
[20] Feitosa A.V, Miranda M. A, Sasaki J. M, Ara´ujo-Silva M. A, (2004).Brazilian Journal of Physics, 34, 656-658.
[21] Mahdi M. A, Kasem S. J, Hassen J. J, Swadi A. A, A l-Ani S. K. (2009). Int. J. Nanoelectronics and Materials ,2 , 163-172.
[22] Sanap V. B, Pawar B. H,(2010).Chalcogenide Letters, 7, 227-231.
[23] Grecu R, Popovici E. J, dar M. L, Pascu L, Indrea E,(2004). Journal of Optoelectronics and Advanced Materials , 6, 127 – 132.
[24] J. Hiie , T. Dedova, V. Valdna, K. Muska, Thin Solid Films 511 – 512, (2006) 443 – 447.
[25] Ezenwa I.A.,Ekpunobi J.( 2010).Pacific Journal of Science and Technology,11(2):435-440.
[26] Perumal P., Manohari .A.G., Valanarasu S., Kathalingam A., Rhee J., Soundaram N., Chandramohan R..(2012). JSEMAT, 2, 71-75.
)
