Silicon nanostalagmites for hybrid solar cells

Authored by: Zingway Pei , Subramani Thiyagu

Silicon Nanomaterials Sourcebook

Print publication date:  August  2017
Online publication date:  July  2017

Print ISBN: 9781498763783
eBook ISBN: 9781315153551
Adobe ISBN:

10.4324/9781315153551-26

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Abstract

In the past few years, there has been an enormous and growing interest in the development of nanostructure materials to improve the light harvesting efficiency for achieving high-efficiency Si solar cells while maintaining low cost. Feasible silicon nanostructures [14] such as silicon nanowires (SiNWs) and silicon nanoholes (SiNHs) have gained much attention due to their unique properties and possible applications in the fields of nanoelectronics [58], nanooptoelectronics [8,9], nanophotovolatics [911], and for sensor applications [12]. Various methods have been developed to prepare one-dimensional (1D) silicon nanostructures. They include laser ablation [13], physical vapor deposition [14], and chemical vapor deposition [15,16] which is a bottom-up approach [17]. However, most methods often result in randomly oriented SiNWs and their diameters and lengths have a wide distribution, which limit the applications to real optoelectronic devices. Nanoelectronics and nanooptoelectronics generally require vertically aligned, tunable length, and high-density nanowires to obtain processing compatibility.

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