? FO?????????? ???????G?? S??? ?????? S?????

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? FO?????????? ???????G?? S??? ?????? S?????

• ?apa?d???? Ge????a

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?? e??a? t? ???a?? ??tta?? (solar cell)

• S?s?e?? p?? µetat??pe? t? ???a?? f?? se ??e?t????
  e????e?a
• ?e? ?p?????? e?d??µesa st?d?a (ape??e?a?
  µetat??p? t?? f?t?? se ??e?t??sµ?)

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S?stas? solar cells

• ?p?te???? d??d??? ?µ?a??????? e??se?? t?p?? p-n
  µe t? µ??f? ep?ped?? p???a?
• G?a t?? ?atas?e?? t??? ???s?µ?p??e?ta? p???t??

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???S? ???????? G?? ??? ????S???? ?O? CELLS

• ????? p?? ????µe µe?et?se? ?a? ???s?µ?p??e?ta?
  st??? ?µ?a??????
• ??a??p???t??? ?a?a??t?ta
• ?f????a

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?e???????e?
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?µ??f?

• ?e? ??e? ???sta????? µ??f?
• ???? ??????µ???te??
• ??s????te?? µe??t? ???? t?? ???e???? ???sta??????
  d?µ?? (ta ?t?µa e??a? t?p??et?µ??a se
  d?af??et???? ap?st?se??, d??f??e? t?µ?? ????a?
  Si-Si)

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?????S p-n

• ?ta? e?????? ?? d?? pe?????? d?ata??sseta? ?
  ??dete??t?ta
• ?a e?e??e?a e de? ?eµ????? ??e? t?? ?e??? ?p??
• St? s?µe?? epaf?? e?????ta? ?a? s??µat????? ??a
  f???µa p?? d?s???e?e? t? d???e?s? t?? e ap? t?? n
  st?? p pe?????
• ?p?t?????eta? ?s????p?a ?a? ????µe ??e?t????
  ped?? p?? ?e?t????e? ?? d??d?? (ep?t??pe? µ??? t?
  µetaf??? t?? e ap? t?? p st?? n pe????? ?a? ???
  a?t?st??fa)

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?? FO?????????? F????????

• ???sµ?? eµf???s? d?af???? d??aµ???? sta ???a
  µ?a? d??d?? ? ?p??a a?t???ß??e?ta? µe ???a??
  e????e?a

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?? s?µßa??e? µ?sa st? solar cell

• ?p????f?s? f?t????? µe e????e?a µe?a??te?? ? ?s?
  ap? t? e?e??e?a?? d???e?? t?? ?µ?a?????
• ?p????f?s? µ??? t?? µ????? e?e???? t?? e????e???
  t??? p?? e??a? ?s? µe Eg
• F?t???? gt 1 e 1 ?p?
• ?s? d?a??e? ? a?t???ß???s? d?µ?????e?ta?
  pe??sse?a f?????
• ?? f??e?? d????ta? t?? ep?d?as? t?? e?s?µat?µ????
  ??e?t??stat???? ped???
• ?a e e?t??p??ta? st?? pe????? n
• ?? ?p?? e?t??p??ta? st?? pe????? p

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• S?ss??e???ta? f??t?a st?? d?? pe?????? gt d?af???
  d??aµ???? a??µesa st??? a???d??te? t?? d??
  tµ?µ?t??

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• ?µf???s? f?t?ß??ta???? fa???µ????

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F?t?ß??ta??? fa???µe??
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????GOG? FO?????????S

• ? t?µ? t?? ?f e??a? a?????? p??? ta f?t???a p??
  ap????f? ?a? ?at? s???pe?a p??? t?? ???a??
  a?t???ß???a
• q st???e??de? ??. f??t??
• R(?) de??t?? a????as?? ??a a?t???ß???a
  µ????? ??µat?? ?
• F(?) p????? f?t????? p?? a?t?st???e? se
  µ???? ??µat?? ap? ? ??? d?

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• S(?) fasµat??? ap????s? , d??. t? p????? t??
  f?t????? t?? a?t???ß???a? p?? d??eta? t? st???e??
  a?? µ???da ep?f??e?a? ?a? a?? µ???da ??????
• ?g t? µ???st? µ???? ??µat?? a?t???ß???a? se
  ??a? ?µ?a???? µe e?e??e?a?? ??sµa Eg (?g h c /
  Eg)

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??T??S ?????S?S

• ? ??? / ?
• ??? ??e?t???? ?s??? st?? ???d? t?? F/?
• ? p??sp?pt??sa ???a?? e????e?a

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????GOG?

• 1.?atas?e?? t?? d?s???? p???t???
  (wafers)

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• ?a???p? (crucible)
• Coating ?e???eta? µe µe??µa ap? ??t??d?? t??
  p???t??? ?a? ?e?µa??eta? ?ste t? µe??µa ?a
  sta?e??p????e? st?? es?te???? t?? ep?f??e?a
• ??p???t?s? t?? p???t??? st? crucible
• Doping µe ß???? (d?µ??????a ?µ?a????? t?po? p
  p???t?? 4e st?? e??te???? st??ß?da, ß???? 3e
  st?? e??te????)
• ??p???t?s? se f??????? gt p?????µa
  p??????sta?????? p???t??? (ingot)

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• ?fa??es? crucible ?a? ?a?a??sµ??
• ??µ??????a bricks
• ????t???? ??e???? bricks
• - ??e???? d????e?a? ????
• - at??e?e?

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• Bricks ??ß??ta? se p??? ?ept? d?s??a p???t???
  (wafers)

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2. ?atas?e?? solar cells

• Doping t?? wafers µe f?sf??? (se a?t? t? s?µe??
  d?µ?????e?ta? p-n junction f?sf???? ??e? 5 e
  st?? e??te???? st??ß?da)
• ????t???? ??e????
• ??p???t?s? µ?-a?a??ast???? ep?st??s??
• Metallization ep?st??s? a???µ?????
• d?µ??????a epaf?? ??a
  ??.
• ?????µa
• Solar cell
• ??e???? ap?d?s??

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F?t?ß??ta??? S?st?µata

• F?t?ß??ta??? p??e? ( f?t?ß??ta??? st???e?a
  s??dedeµ??a µeta?? t???, ep??a??µµ??a µe e?d????
  µeµß???e? ?a? e???ß?t?sµ??a se ??a?? µe p?a?s??
  ap? a???µ???? ) se d??f??e? t?µ?? ???µast????
  ?s????, a?????a µe t?? te???????a ?a? t?? a???µ?
  t?? f?t?ß??ta???? ???e??? p?? ta ap?te????
• ??a p??e? 36 ???e??? µp??e? ?a ??e? ???µast???
  ?s?? 70-85 W, e?? µe?a??te?a p??e? µp??e? ?a
  ft?s??? ?a? ta 260 W ? ?a? pa?ap??? (µe 68-72
  ?????e?)
• ??a f?t?ß??ta??? s?st?µa ap?te?e?ta? ap? ??a ?
  pe??ss?te?a p??e? f?t?ß??ta???? st???e??? µa?? µe
  t?? apa?a?t?te? s?s?e??? ?a? d?at??e?? ??a t?
  µetat??p? t?? ??e?t????? e????e?a? p?? pa???eta?
  st?? ep???µ?t? µ??f?.

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????????????? FO?????????O?

• ??de???? ??pa?s?
• ?????ß? ?e?t?????a
• ????p?st?a ?a? µe???? d????e?a ???? (pe??p?? 30
  ?????a)
• ?pe???t?s? ap? t?? t??f?d?s?a ?a?s?µ?? ??a t??
  ap?µa???sµ??e? pe??????
• ?p??s?a ????t?? µe???
• ???at?t?ta ep??tas??
• ?????st? s??t???s?

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• ??s?t?ta t?? ??p?? ? ????s? t?? ?p????
  ap?fe??eta? ??a ???e ???a?? ????ßat??a p??
  pa???eta? ap? ??a f?t?ß??ta??? s?st?µa

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• ??a t?p??? f?t?ß??ta??? ?s???? 1 ????ß?t (kW)
  (a?????a µe t?? ????f??e?a t?? pe??????)
  ap?t??pe? ?at? µ?s? ??? ???e ????? t?? ????s?
  1.450 ????? d???e?d??? t?? ????a?a, ?s? d??ad? ?a
  ap????f??sa? d?? st??µµata d?s???.

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??????? ???S?

• ??t???µ? S?st?µa
• ?pa?a?t?t? µ???da ap????e?s?? ?a? d?a?e???s??
  e????e?a?

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• ??as??dedeµ??? S?st?µa (se s??d?asµ? µe t?
• 
  d??t?? t?? ???)
• ?ata?a???e? ?a?e?? ?e?µa ap? t? d??t?? ?ta?
  t? f?t?ß??ta??? s?st?µa de? epa??e? (p.?. ?ta?
  ??e? s???ef?? ? ?at? t? d????e?a t?? ???ta?) ?a?
  d??e? e????e?a st? d??t?? ?ta? ? pa?a????
  ?pe??a??pte? t?? a????e? t??.

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???S? OS ?????? ?????

• S?ep??
• ???s??e??
• ?a??st?s?a
• (d?afa?? µe ?e?µ?µ???t???? ?d??t?te?)