Sigurd Wagner is seeking to introduce fundamentally new electronic materials. He has been working in three areas: (i) new materials for solar cells; (ii) hydrogenated amorphous silicon; and (iii) flexible, conformably shaped and stretchable large-area displays, electrotextiles, and electronic skin. At present he is developing an environmental barrier layer for organic electronics, and is collaborating with colleagues on the integration of flexible electronics into complete systems. Beginning with work at Bell Laboratories, where he co-invented the CuInSe2 (CIS), CuInS2, and Cu2CdSnS4 solar cells, among others, he has had a long-standing interest in solar energy conversion.
S. Wagner and S. Bauer (2012) “Materials for stretchable electronics,” lead article for the MRS Bulletin issue with the same title, MRS Bulletin 37, March 2012, pp. 207-213, DIO: 10.1557/mrs.2012.37
W.J. Nam, L. Ji, T.L. Benanti, V.V. Varadan, S. Wagner, Q. Wang, D. Neidich, S.J. Fonash (2011) “Incorporation of a Light and Carrier Collection Management Nano-element Array into Superstrate a-Si:H Solar Cells,” Appl. Phys. Lett. 99, 073701, DOI: 10.1063/1.3628460
S. Wagner (2010) “Amorphous silicon: Vehicle and test bed for large-area electronics,” Phys. Status Solidi A 207, 501-509, DOI: 10.1002/pssa.200982910
L. Han, P. Mandlik, J. Gartside, S. Wagner, J Silvernail, R-Q. Ma, M. Hack and J. Brown (2009) “Properties of a Permeation Barrier Material Deposited from Hexamethyl Disiloxane and Oxygen,” J. Electrochem. Soc. 156, H106-H114, DOI: 10.1149/1.3028308
I.-C. Cheng, Helena Gleskova, Sigurd Wagner, James C. Sturm, Zhigang Suo, (2006) "Mechanics of thin-film transistors and solar cells on flexible substrates," Solar Energy, vol. 80, pp. 687-693, DOI: 10.1016/j.solener.2005.10.010
R. Jones, T. Johnson, W. Jordan, S. Wagner, J. Yang, and S. Guha (2002) "Effects of Mechanical Strain on the Performance of Amorphous Silicon Triple-junction Solar Cells," Proc. 29th IEEE Photovoltaic Specialists Conference, New Orleans, IEEE, New York. pp.1214-1217, DOI: 10.1109/PVSC.2002.1190826
S. Wagner, D. E. Carlson, and H. M. Branz (1999) "Amorphous and Microcrystalline Silicon Solar Cells," in Photovoltaics for the 21st Century, vol. 99-11, R. D. M. V.K. Kapur, D. Carlson, G.P. Ceasar and A. Rohatgi, editors, Ed. Pennington, NJ.: Electrochemical Society, pp. 219-231.
B. Crone, A. M. Payne, and S. Wagner (1996) "200μm Thick Encapsulated Amorphous Silicon Solar Cells," Conf. Record 25th IEEE Photovoltaic Specialists Conf., Washington, D.C., IEEE, New York, pp.1169-1172.
X. Xu, J. Yang, A. Banerjee, S. Guha, K. Vasanth, and S. Wagner (1995) "Band Edge Discontinuities Between Microcrystalline and Amorphous Hydrogenated Silicon Alloys and their Effect on Solar Cell Performance," Appl. Phys. Lett., vol. 67, pp. 2323-2325, DOI: 10.1063/1.114332