In this paper the present state of development of high efficiency silicon solar cells for use at high concentration levels (20X -100X) is described. The design factors and process steps leading to the best performance within the available process technology are analyzed. The cell efficiency has exce
High efficiency silicon cells for luminescent solar concentrators
โ Scribed by C.M. Garner; F.W. Sexton; R.D. Nasby
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 499 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0379-6787
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โฆ Synopsis
Energy conversion efficiencies of 18% and 19.4% at 0.1 W cm -2 and 1 W cm-2 respectively were measured for a luminescent solar concentrator cell under an air mass one solar spectrum. This cell was designed for operation under illumination of 600 nm wavelength and 1 W cm -2. From these results and spectral response data an efficiency of 26% can be projected for illumination at 600 nm. This agrees well with computer code calculations of 28%. The substrate doping level, cell grid pattern, minority carrier lifetime and antireflection coating properties were studied to optimize the cell performance for 600 nm and longer wavelengths.
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The present work reports the study and fabrication of violet polished and textunzed (viole~ black) silicon solar cells The cells were made with n-type silicon single crystal using boron diffusion m a reducing atmosphere. These cells are 16 cm 2 In area and have Va-A1 contacts in comb form and a sili