2020年9月4日

來自中國江蘇海洋大學的研究人員和中國光伏模塊製造商增加太陽能技術聲稱他們已經實現了21.4%的效率鈍化發射極後方接觸(PERC)矽太陽能電池利用high-uniform倒金字塔(IP)結構。IPs是已知的光捕獲結構優越的防反射品質。他們可以很容易地印製在單個水晶矽晶片的表麵輻射nanosecond-pulsed激光。類似結構的優勢進行三個或更多反彈之前被反射回去,這意味著一個或兩個反射而正直的金字塔。在過去,研究人員取得了類似的太陽能電池效率從18.62%到20.19%不等。但在最新的中國實驗中,科學家們應用IP結構在商業180 -μm厚單晶矽晶片156平方毫米×156平方毫米的標準尺寸通過metal-assisted化學腐蝕(MACE)和堿溶液各向異性腐蝕技術,稱這種兼容現有的生產線。細胞發射器通過plasma-enhanced鈍化氧化化學氣相沉積(PECVD) "堆棧矽/氮化矽(二氧化矽/ SiNx)層。“堆棧介電層被設計用來優化元件的光學特性通過增加內部後反射,同時保持一個好的電子鈍化效果,”研究人員解釋說,指出層然後結合堆棧氧化鋁/氮化矽(氧化鋁/ SiNx)鈍化後的表麵。除了上述記錄效率,細胞還表示,顯示一個開路電壓(VOC)的0.677 V, 9.63短短路電流(ISC),和80.30%的占空因數。“高績效的關鍵在於光學優勢IP紋理和減少電力損失的同時如果基於IP的n +發射器和後方表麵鈍化,”學者說。 “This novel Si IP-based PERC device structure and technique show a great potential in mass production of high-efficiency silicon-based solar cell.” Save my name, email, and website in this browser for the next time I comment. By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment. Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so. You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled. Further information on data privacy can be found in our Data Protection Policy . Keep up to date pv magazine Australia offers bi-weekly updates of the latest photovoltaics news. We also offer comprehensive global coverage of the most important solar markets worldwide. Select one or more editions for targeted, up to date information delivered straight to your inbox. Email* Hold Ctrl or Cmd to select multiple editions. We send newsletters with the approximate frequency outlined for each edition above, with occasional additional notifications about events and webinars. We measure how often our emails are opened, and which links our readers click. To provide a secure and reliable service, we send our email with MailChimp, which means we store email addresses and analytical data on their servers. You can opt out of our newsletters at any time by clicking the unsubscribe link in the footer of every mail. For more information please see our Data Protection Policy . Subscribe to our global magazine