Download e-book for kindle: Advances in thin-film solar cells by I M Dharmadasa

By I M Dharmadasa

ISBN-10: 9814316075

ISBN-13: 9789814316071

This publication concentrates at the most recent advancements in our knowing of solid-state equipment physics. the cloth offered is especially experimental and in response to CdTe thin-film sun cells. It extends those new findings to CIGS thin-film sunlight cells and provides a brand new machine layout in response to graded bandgap multilayer sunlight cells. This layout has been experimentally established utilizing the well-researched GaAs/AlGaAs process and preliminary units have proven extraordinary machine parameters. those units are able to soaking up all radiation (UV, noticeable, and infra-red) in the sun spectrum and combines "impact ionization" and "impurity photovoltaic" results. the enhanced equipment figuring out provided during this booklet should still impression and consultant destiny machine layout and reasonably cheap thin-film sunlight panel manufacture.

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The nature of the two electrical contacts can vary according to the device design used, with generally used ohmic contacts. However, metal contacts with rectifying properties can also be used to enhance the existing electric field within the device, as described in later chapters of this book. The following section uses a simple solar cell device structure based on a rectifying Schottky diode to illustrate the characteristics of a solar cell and its conversion efficiency. Details of other PV solar cell devices are well documented in previous publications [16–20].

3, the open circuit voltage (Voc ) of a solar cell is a function of the φ b and, therefore, this is a method used to enhance the Voc of PV solar cells based on Schottky diodes. The insulating layer brings an additional advantage of minimising the interactions between the metal and the semiconductor. 8 A schematic diagram showing that a Schottky barrier is only a half of a p-n junction in the case of an ideal interface. 9 The enhancement of the φb and the decoupling of two materials by the incorporation of an insulating layer at the interface.

Chaure (2002) Semicond. Sci. , 17, 1238–1248. 11. T. J. Brown, A. S. Walters, N. E. Idoine, R. A. Shaw, C. E. Wrighton, and T. Bide (2012) British Geological Survey on world mineral production, 2006–10. 1 Introduction Semiconducting materials provide the main functions of a photovoltaic (PV) device, namely the optical absorption and creation of rectifying junctions to convert light into electricity. Therefore, the establishment of a suitable materials growth technique is essential in the PV development process.

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Advances in thin-film solar cells by I M Dharmadasa


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