25 August 2017 Effect of immerse an organic layer in isopropyl alcohol on characteristics of hybrid photovoltaic structures
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Abstract
Organic materials have become very important in recent years due to their potential use for photovoltaic applications. Among the main advantages of organic semiconductors are their functional and mechanical flexibility, as well as fabrication simplicity. However, these materials usually afford moderate efficiency in organic photovoltaic devices. On the other hand, hydrogenated amorphous silicon (a-Si:H) is a widely known inorganic semiconductor that compared to their organic counterparts has excellent photogeneration and transport properties and it is suitable for large area fabrication of flexible devices. The idea of combining organic semiconductors and amorphous silicon films in hybrid photovoltaic devices is very attractive due to the possibility to complement the useful properties of both material systems. The photovoltaic devices that we study in this work consist of a p-i-n structure, which is also commonly used in inorganic solar cells. In such kind of structures, the light is mainly absorbed in the intrinsic silicon film and the p- and ntype films are used to create an electric field that separates electrons and holes to produce a photocurrent. In this work, we use an organic material (PEDOT:PSS) to replace the p-type inorganic film in amorphous silicon p-i-n structure. It is widely known, that PEDOT:PSS based organic film is highly transparent and its conductivity can be modified e.g. immerse in a solvent type. Here we present the results of experimental investigation of the effect of isopropanol (IPA) treatments in p-type (PEDOT:PSS) organic layer on characteristics of hybrid solar cell structure.
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A. J. Olivares Vargas, A. J. Olivares Vargas, I. Cosme, I. Cosme, S. Mansurova, S. Mansurova, A. Kosarev, A. Kosarev, A. Itzmoyotl , A. Itzmoyotl , } "Effect of immerse an organic layer in isopropyl alcohol on characteristics of hybrid photovoltaic structures", Proc. SPIE 10363, Organic, Hybrid, and Perovskite Photovoltaics XVIII, 103633G (25 August 2017); doi: 10.1117/12.2276228; https://doi.org/10.1117/12.2276228
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