Microstructures and Photovoltaic Properties of Polysilane-Based Solar Cells

Abstract

Polysilane/C 60-based solar cells were fabricated and investigated. Two-types of devices with bulk heterojunction and heterojunction structures were examined and characterized. Addition of silicon-based polymer to the organic solar cells improved the conversion efficiency by wide optical absorption and high carrier mobility. Microstructures of the solar cells were investigated by using X-ray diffraction and transmission electron microscopy. Energy levels in the present solar cells were discussed.

Fabrication and Characterization of CH3NH3PbI3 Perovskite Solar Cells Added with Polysilanes

“…Since organic thin-film solar cells have the advantages of low cost, flexibility, and being lightweight, the photovoltaic and optical properties of the organic solar cells have been studied [1][2][3][4][5][6][7]. Polysilane is a p-type semiconductor and has been used as an electrical conductive material and photovoltaic systems [7][8][9][10][11][12][13][14]. Polysilanes are known as σ-conjugate polymers, and their hole mobility is 10 −4 cm 2 V −1 s −1 [7].…”

“…Polysilanes are known as σ-conjugate polymers, and their hole mobility is 10 −4 cm 2 V −1 s −1 [7]. Although the polysilanes could be applied to p-type semiconductors on organic thinfilm solar cells, few studies on polysilane-based solar cells have been reported [8,14,15].…”

Functionalization of Endohedral Metallofullerenes with Reactive Silicon and Germanium Compounds

“…Due to their photoconductive properties, polysilanes may be applied to novel organic semiconductor devices. Some researchers investigated the photovoltaic properties of bulk heterojunction solar cells using C 60 and [6,6]-phenyl C 61 -butyric acid methyl ester (PCBM) as electron acceptors and polysilanes as electron donors [ 84 , 85 , 86 , 87 ]. Furthermore, composite materials composed of polysilanes and EMFs may exhibit improved electronic properties as compared with those of empty fullerene-based materials.…”

Fabrication of Perovskite-Type Photovoltaic Devices with Polysilane Hole Transport Layers

“…Polysilanes are promising candidates for the alternate hole transport materials because they are one-dimensional silicon-based materials [19] [20], and can provide good electrical, optical and photovoltaic properties [21] [22] [23] [24].…”