IJSTR >> Volume 8 - Issue 11, November 2019 Edition

[Full Text]

AUTHOR(S)

Gitalee Sharma and Mithun J Sharma

KEYWORDS

Organic solar cells, Power conversion efficiency, Data envelopment analysis, Band gap

ABSTRACT

The measurement of Power Conversion Efficiency (PCE) of Organic Solar Cells (OSC) noted in literature till date is absolute and not relative. As in absolute measure, comparative ranking cannot be made by referring to a benchmark, scope for improvement is on lack. However, relative measurement compares the absolute values, thereby providing scope for benchmarking, referencing and improvement projections. This paper proposes the application of Data Envelopment Analysis (DEA), a non parametric operation research approach for relative efficiency measurement of OSCs (DMUs). The DEA model used reveal that out of the 25 OSCs studied here, one OSC (i.e. DMU Y[28]), is found to be efficient and all other DMUs are inefficient relatively taking Y[28] as benchmark. The result of input/output oriented DEA method used to measure the relative efficiency of OSCs prescribes to hold input/output constant and to determine how much of an improvement in the output/input dimensions of inefficient OSCs is necessary in order to reach the frontier.

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