Introduction And Literature Review New Generation...

1. INTRODUCTION AND LITERATURE REVIEW New generation photovoltaic cells based on organic materials possess the potential for the low cost and large area production on mechanically flexible substrates. These are lightweight and suitable for the applications such as foldable and portable solar cells. Organic photovoltaics (OPVs) have not achieved efficiencies comparable to the inorganic solar cells due to poor charge carrier mobility [1]. Recent developments of optimizing the organic absorbing materials have shown encouraging device performance towards overcoming the challenges associated with commercialization. Using various fabrication techniques, production speed up to several meters square per second can be achieved. With roll to roll fabrication process, about 105 m2 of a film can be prepared in a day. The production of organic photovoltaic devices can be achieved in large quantity and many times cheaper than the conventional inorganic photovoltaic technology. Recently, organic solar cells (OSCs) developed using different fabrication techniques, materials and state of the arts have power conversion efficiency between 6 – 10% and even greater than this [2-5]. To develop more efficient organic solar cells, various strategies are being used such as bilayer heterojunction to improve exciton dissociation, bulk hetero junction to minimize exciton recombination, etc. The performance of the organic solar cell highly depends on the interfaces between the variousShow MoreRelatedResearch Project : Drivers, Barriers And Constraints And Then Refine The Outlook Of Small Scale Power Generation1488 Words   |  6 PagesME3 LITERATURE RESEARCH PROJECT Microgeneration is not living up to expectations: A report that will first review the drivers, barriers and constraints and then refine the outlook of small scale power generation. 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