Modification of hybrid active bilayer for enhanced efficiency and stability in planar heterojunction colloidal quantum dot photovoltaics

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• 作者：Seung Jin Heo (5)
  Seokhyun Yoon (5)
  Sang Hoon Oh (5)
  Hyun Jae Kim (5)
  
• 关键词：Hybrid active bilayer ; Colloidal PbS quantum dot photovoltaics ; Planar structure ; Ambient air stability
• 刊名：Nanoscale Research Letters
• 出版年：2013
• 出版时间：December 2013
• 年：2013
• 卷：8
• 期：1
• 全文大小：824 KB
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• 作者单位：Seung Jin Heo (5)
  Seokhyun Yoon (5)
  Sang Hoon Oh (5)
  Hyun Jae Kim (5)
  
  5. School of Electrical and Electronic Engineering, Yonsei University, Seoul, 120-749, South Korea
  
• ISSN：1556-276X

文摘

Solution-processed planar heterojunction colloidal quantum dot photovoltaics with a hybrid active bilayer is demonstrated. A power conversion efficiency of 1.24% under simulated air mass 1.5 illumination conditions is reported. This was achieved through solid-state treatment with cetyltrimethylammonium bromide of PbS colloidal quantum dot solid films. That treatment was used to passivate Br atomic ligands as well as to engineer the interface within the hybrid active bilayer.