Recombination and radiation damage in crystalline silicon solar cell material

Peaker, А. R.; Markevich, V. P.; Dobaczewski, L.

doi:10.1002/pssc.200404841

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…It is well known that photovoltaic cells degrade under normal operating conditions 11 . In the case of satellite cells the dominant mechanism is radiation damage which limits the useful life of the cell.…”

Section: Basic Conceptsmentioning

confidence: 99%

Photovoltaic Power Generation: The Impact of Nano-Materials

Peaker¹,

Маркевич

2008

MSF

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Solar power is seen by many as a solution to the world’s energy problems. The earth receives 1.7x1017W from the sun compared to a total electricity generation capacity of 4.6x1012W (OECD prediction for 2010). However the average power density is low with a daytime average over the earth of 680Wm-2. This makes centralised generation problematic but distributed photoelectric generation by domestic and commercial users is a rapidly developing market. However typical commercially available modules have an energy conversion efficiency of less than 12%. Silicon cells with 24% efficiency have been produced in the lab while multi-junction tandem cells using different semiconductor materials (GaInAs, GaInP and Ge) to absorb different parts of the sun’s spectrum have reached 40%. This chapter describes some of the materials and device achievements so far and looks at possible ways in which higher efficiencies might be achieved with particular emphasis on nano-materials to use more of the solar spectrum efficiently. The possibility of using quantum slicing and multiple exciton generation to make more efficient use of high energy photons is considered and impurity band generation as a possible route to use low energy photons. One of the greatest challenges is to do this cheaply using semiconductors made from non-toxic abundant elements.

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Section: Basic Conceptsmentioning

confidence: 99%

Photovoltaic Power Generation: The Impact of Nano-Materials

Peaker¹,

Маркевич

2008

MSF

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Photovoltaics literature survey (no. 37)

Richards

2005

Prog. Photovolt: Res. Appl.

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Thermal evaporation and x-ray photostability of dodecyl-passivated silicon nanoparticles

Coxon¹,

Ashby²,

Frogley³

et al. 2012

J. Phys. D: Appl. Phys.

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X-ray photoelectron spectroscopy (XPS) and x-ray absorption spectroscopy have been used to study the makeup of thin films of 6.5 nm diameter dodecyl-capped silicon nanoparticles (SiNPs) formed in a one-pot synthesis method of micelle reduction. Thermostability measurements show the SiNPs undergo thermal desorption at ∼240 °C, a higher temperature than for SiNPs capped by shorter hydrocarbon layers owing to the greater size of the nanoparticle system in this case. Suspensions of SiNPs are found to evaporate in a UHV environment intact with the hydrocarbon passivating layer preserved and form thin films which are visualized with microimaging FTIR spectroscopy. The stability of the capping layer within thick SiNP films under extended exposure (up to 2160 s) to 140 eV photons has been examined where XPS spectra show the breakdown of the passivating layer allowing the underlying silicon core to undergo subsequent oxidation.

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Recombination and radiation damage in crystalline silicon solar cell material

Cited by 4 publications

References 25 publications

Photovoltaic Power Generation: The Impact of Nano-Materials

Photovoltaic Power Generation: The Impact of Nano-Materials

Photovoltaics literature survey (no. 37)

Thermal evaporation and x-ray photostability of dodecyl-passivated silicon nanoparticles

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