Degradation of back surface acrylic mirrors for low concentration and mirror-augmented photovoltaics

Murray, Myles P.; Bruckman, Laura S.; Gordon, Devin A.; Richardson, S W; Reinbolt, G; Schuetz, Mark A.; French, Roger H.

doi:10.1117/12.930102

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…5,6 In the RðSÞ framework, all of the available responses of a material are integrated to provide a comprehensive scientific understanding of the material. This RðSÞ framework can encompass multifactor, and cyclic, environmental stressors including solar irradiance, temperature, and humidity, which can cause degradation over time.…”

Section: Introductionmentioning

confidence: 99%

Photodegradation in a stress and response framework: poly(methyl methacrylate) for solar mirrors and lens

2012

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In the development of materials for enhanced photovoltaic (PV) performance, it is critical to have quantitative knowledge of both their initial performance and their performance over the required 25-year warranted lifetime of the PV system. Lifetime and degradation science, based on an environmental stress and response framework, is being developed to link the intensity and net stress to which materials, components, and systems are exposed to the responses observed and their subsequent degradation and damage accumulation over the lifetime. Induced absorbance to dose (IAD), a metric developed for solar radiation durability studies of solar and environmentally exposed materials, is defined as the rate of photodarkening or photobleaching of a material as a function of radiation dose. Quantitative degradation rates like IAD, determined over a wide range of stress intensities and net stresses, have the potential to predict degradation, failure, and power loss rates in photovoltaic systems over time caused by damage accumulation. Two grades of poly(methyl methacrylate) were exposed and evaluated in two cases of highintensity ultraviolet exposures. A three-to six-fold increase in photodarkening was observed for one acrylic formulation when exposed to UVA-340 light when compared with concentrated xenon-arc exposure. The other, more highly stabilized acrylic formulation, showed up to three times more photodarkening in the same exposure. Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response framework . Downloaded From: http://photonicsforenergy.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Murray, Bruckman, and French: Photodegradation in a stress and response fram...

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Section: Introductionmentioning

confidence: 99%

Photodegradation in a stress and response framework: poly(methyl methacrylate) for solar mirrors and lens

2012

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Polymeric materials for long‐term durability of photovoltaic systems

Griffini

Turri

2015

J of Applied Polymer Sci

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Photovoltaic (PV) technology has evolved rapidly in the past few decades and now encompasses a large variety of materials and device structures. A key aspect to be taken into account in any PV technology is the operational durability of the systems in outdoor conditions. Clearly, loss of performance during operation represents a significant drawback and limitation in the commercialization of this technology. In this context, the large compositional flexibility of polymeric materials as well as their proven easy processability may be of great help in imparting improved durability to PV systems. In this review, a summary on the state of the art and most recent developments in the field of polymeric materials for improved long-term durability of PV devices is presented, with particular emphasis on the use of polymers as encapsulation materials and protective coatings in the field of both PV and lightconcentration systems.

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Photovoltaic lifetime and degradation science statistical pathway development: acrylic degradation

et al. 2013

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Degradation of back surface acrylic mirrors for low concentration and mirror-augmented photovoltaics

Cited by 3 publications

References 12 publications

Photodegradation in a stress and response framework: poly(methyl methacrylate) for solar mirrors and lens

Photodegradation in a stress and response framework: poly(methyl methacrylate) for solar mirrors and lens

Polymeric materials for long‐term durability of photovoltaic systems

Photovoltaic lifetime and degradation science statistical pathway development: acrylic degradation

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