JP2016174157A - 太陽電池セル構造、及び同太陽電池セル構造を形成する組成物及び方法 - Google Patents
太陽電池セル構造、及び同太陽電池セル構造を形成する組成物及び方法 Download PDFInfo
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Abstract
【解決手段】太陽電池セル構造は、少なくとも1つの上部サブセル12と、接着層14と、少なくとも1つの下部サブセル16と、そして下部基板18と、を含むことができる。接着層14は、導電性炭素成分及びバインダ成分を含む。
【選択図】図1
Description
Claims (20)
- 第1半導体ウェハ層を第2半導体ウェハ層に接続する接着層を含む半導体構造であって、前記接着層が、導電性炭素成分及びバインダ成分を含む、半導体構造。
- 前記接着層は、少なくとも800ナノメートルの波長において少なくとも85パーセントの光透過率を有する、請求項1に記載の半導体構造。
- 前記導電性炭素成分は、カーボンナノチューブ群を含む、請求項1に記載の半導体構造。
- 前記カーボンナノチューブ群は、約1〜約2ナノメートルの範囲の断面平均厚さを有する、請求項3に記載の半導体構造。
- 前記バインダ成分は、金属酸化物、金属窒化物、半導体酸化物、半導体窒化物、ポリマー、及びシリコーンのうちの少なくとも1つを含む、請求項1に記載の半導体構造。
- 前記バインダ成分は、アルミナ、チタニア、ハフニア、シリカ、窒化珪素、酸化亜鉛、インジウム錫酸化物、及びこれらの組み合わせから成るグループから選択される、請求項1に記載の半導体構造。
- 前記接着層は、約10ナノメートル〜約100ナノメートルの範囲の厚さを有する、請求項1に記載の半導体構造。
- 前記接着層は、少なくとも800ナノメートルの波長において少なくとも95パーセントの光透過率を有する、請求項1に記載の半導体構造。
- 前記第2半導体ウェハ層は、1つのスペクトル域の光を吸収し、そして前記接着層は、前記スペクトル域全体に渡って少なくとも85パーセントの光透過率を有する、請求項1に記載の半導体構造。
- 前記接着層は、最大1Ω−cm2の垂直電気抵抗を有する、請求項1に記載の半導体構造。
- 少なくとも1つの下部サブセルに接着層によって接続される少なくとも1つの上部サブセルを含む太陽電池セル構造であって、前記接着層が、カーボンナノチューブ群及びバインダ成分を含み、前記下部サブセルが1つのスペクトル域で動作し、そして前記接着層が、前記スペクトル域全体に渡って少なくとも85パーセントの光透過率を有する、太陽電池セル構造。
- 前記カーボンナノチューブ群は、約1〜約2ナノメートルの範囲の断面平均厚さを有する、請求項11に記載の太陽電池セル構造。
- 前記バインダ成分は、金属酸化物、金属窒化物、半導体酸化物、半導体窒化物、ポリマー、及びシリコーンのうちの少なくとも1つを含む、請求項11に記載の半導体構造。
- 前記バインダ成分は、アルミナ、チタニア、ハフニア、シリカ、窒化珪素、酸化亜鉛、インジウム錫酸化物、及びこれらの組み合わせから成るグループから選択される、請求項1に記載の半導体構造。
- 太陽電池セル構造を、下部基板及び上部基板を使用して組み立てる方法であって、前記方法は:
少なくとも1つの下部サブセルを前記下部基板に成長させる工程であって、前記下部サブセルが、1つのスペクトル域の光を吸収するように構成される、前記成長させる工程と、
少なくとも1つの上部サブセルを前記上部基板に成長させる工程と、
接着層を、前記下部サブセル及び前記上部サブセルのうちの少なくとも1つのサブセルに塗布する工程であって、前記接着層が、導電性炭素成分及びバインダ成分を含み、前記接着層が、前記スペクトル域全体に渡って少なくとも85パーセントの光透過率を有する、前記塗布する工程と、
前記上部サブセルを前記下部サブセルに、前記接着層が前記上部サブセルと前記下部サブセルとの間に挟まれるように接続する工程と、
任意であるが、前記上部基板を取り外す工程と、
を含む、方法。 - 前記導電性炭素成分は、カーボンナノチューブ群を含む、請求項15に記載の方法。
- 前記バインダ成分は、アルミナ、チタニア、ハフニア、シリカ、窒化珪素、酸化亜鉛、インジウム錫酸化物、及びこれらの組み合わせから成るグループから選択される、請求項15に記載の方法。
- 前記下部サブセルを、前記下部基板に格子整合または略格子整合するように成長させ、そして前記上部サブセルを、前記上部基板に格子整合または略格子整合するように成長させ、前記上部基板は、前記下部基板とは異なる導電型である、請求項15に記載の方法。
- 前記上部サブセルを成長させる前記工程では、少なくとも2つの上部サブセルを前記上部基板に逆構成となるように成長させる、請求項15に記載の方法。
- 更に、上部コンタクトを前記上部サブセルに、そして下部コンタクトを前記下部基板に取り付ける工程を含む、請求項15に記載の方法。
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