Tesema Genene (3 results)
- Softcover
Seller: Mispah books, Redhill, SURRE, United KingdomMispah books
Contact seller4-star sellerCondition: Used - As new
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Paperback. Condition: Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.
- Softcover
- Print on Demand
Seller: moluna, Greven, Germanymoluna
Contact seller5-star sellerCondition: New
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Eressa Lemessa AsefaMr.Lemessa Asefa has obtained his M.Sc.degree in Physics from Addis Ababa University in July 2008 where working in Polymer Physics. Since then, he is a lecturer at Ambo University, C…ollege of Natural& Computationa.
- Softcover
- Print on Demand
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
Contact seller5-star sellerCondition: New
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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - A solar cell is a photovoltaic device designed to convert sunlight into electrical power. We can categorize solar cells into organic and inorganic. The advantages of organic solar cell over inorganic ones are inexpensive to fabricate,lig…ht weight, flexible shape and have little potential for negative environmental impact.But, the disadvantages of organic solar cell is low power conversion efficiency and suffer from huge degradation.So,there are different approaches for improving the efficiency of organic solar cells. Some of them are selection of solar harvesting material which have low band gap and broad absorption, active layer structure design (such as using bulk heterojunction),and etc.This work is aimed at enhancing the performance of a bulk heterojunction solar cell made from APFO Green-6:PCBM (1:4 ratio).This can be achieved through creating new device architecture design(bulk heterojunction) and careful control on the morphology of the active layer using thermal annealing in order to get a higher power conversion efficiency. Thermal annealing increases the degree of crystallization of the cell,charge transport and then the efficiency of the organic cell.
