The 'Fast' and 'Slow' Light Induced Defects in Diluted and Undiluted Hydrogenated Amorphous Silicon Solar Cells and Materials

Joshua Pearce 4 PAGES (3453 WORDS) Article
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Studies have been carried out on a-Si:H p-in solar cells and corresponding i-layer films fabricated with and without hydrogen dilution for kinetics with high intensity and 1 sun illuminations. The results show a striking similarity between the kinetics in the fill factors (FF) of the p-in solar cells and the mobility lifetime (µτ) products of the corresponding i layer films. New results are presented on thermal annealing after 10 sun degradation which further substantiate the presence of fast and slow defects in the light induced changes of a-Si:H materials, as do the degradation kinetics of both cells and films under 1 sun illumination to their degraded steady states (DSS). Initial (fast) and subsequent (slow) regimes approaching DSS are present at temperatures between 25°C and 100°C, with the two regimes having distinctly different dependences on temperature. The DSS in the films and cells improve monotonically with temperature whereas the initial regimes show a clear reversal in their temperature dependence between 40°C and 50°C. The inability to express these results of 1 sun kinetics with rate equations containing only single time constants for creation and annealing provides further evidence that more than one defect is responsible for light induced degradation in a-Si:H materials and solar cells.

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APA

Joshua, P (2019). The 'Fast' and 'Slow' Light Induced Defects in Diluted and Undiluted Hydrogenated Amorphous Silicon Solar Cells and Materials. Afribary.com: Retrieved June 26, 2019, from https://afribary.com/works/the-fast-and-slow-light-induced-defects-in-diluted-and-undiluted-hydrogenated-amorphous-silicon-solar-cells-and-materials

MLA 8th

Pearce, Joshua. "The 'Fast' and 'Slow' Light Induced Defects in Diluted and Undiluted Hydrogenated Amorphous Silicon Solar Cells and Materials" Afribary.com. Afribary.com, 15 Apr. 2019, https://afribary.com/works/the-fast-and-slow-light-induced-defects-in-diluted-and-undiluted-hydrogenated-amorphous-silicon-solar-cells-and-materials . Accessed 26 Jun. 2019.

MLA7

Pearce, Joshua. "The 'Fast' and 'Slow' Light Induced Defects in Diluted and Undiluted Hydrogenated Amorphous Silicon Solar Cells and Materials". Afribary.com, Afribary.com, 15 Apr. 2019. Web. 26 Jun. 2019. < https://afribary.com/works/the-fast-and-slow-light-induced-defects-in-diluted-and-undiluted-hydrogenated-amorphous-silicon-solar-cells-and-materials >.

Chicago

Pearce, Joshua. "The 'Fast' and 'Slow' Light Induced Defects in Diluted and Undiluted Hydrogenated Amorphous Silicon Solar Cells and Materials" Afribary.com (2019). Accessed June 26, 2019. https://afribary.com/works/the-fast-and-slow-light-induced-defects-in-diluted-and-undiluted-hydrogenated-amorphous-silicon-solar-cells-and-materials