Kyushu Institute of Technology Academic Repository
Kyutacarは九州工業大学で生産された研究成果を オープンアクセスで提供する機関リポジトリシステムです。 Kyutacar is open-access repository of research by members of the Kyushu Institute of Technology.
Faculty of Informatics and Engineering, The University of Electro-Communications
College of Science and Technology, Nihon University
Institute of Advanced Materials (INAM)
Faculty of Informatics and Engineering, The University of Electro-Communications
Faculty of Informatics and Engineering, The University of Electro-Communications
Faculty of Informatics and Engineering, The University of Electro-Communications
Faculty of Life Science and Systems Engineering, Kyushu Institute of Technology
Faculty of Life Science and Systems Engineering, Kyushu Institute of Technology, CREST, Japan Science and Technology Agency (JST)
Faculty of Informatics and Engineering, The University of Electro-Communications, CREST, Japan Science and Technology Agency (JST)
Beijing Engineering Research Centre of Sustainable Energy and Buildings, Beijing University of Civil Engineering and Architecture
College of Science and Technology, Nihon University
Faculty of Life Science and Systems Engineering, Kyushu Institute of Technology, CREST, Japan Science and Technology Agency (JST)
抄録
A novel organic small molecule bis-triphenylamine with spiro(fluorene-9,9′-xanthene) as the conjugated system, named BTPA-4, is successfully synthesized and employed as the hole-selective layer (HSL) in colloidal quantum dots solar cells (CQDSCs). The introduction of BTPA-4 layer can significantly prolong effective carrier lifetime (τeff), increase charge recombination resistance (Rrec), and thus diminish the interfacial charge recombination at the PbS-QDs/Au electrode interface. The effect of BTPA-4 as HSL in the device performance is especially significant for the open-circuit voltage (Voc) and power conversion efficiency (PCE), with a ∼ 10% and 15% enhancement respectively, comparing with those of device without the HSL. Furthermore, the PbS CQDSCs with BTPA-4 possessed a noticeably stable property for over 100 days of storage under ambient atmosphere.
Improvement of Photovoltaic Performance of Colloidal Quantum Dot Solar Cells Using Organic Small Molecule as Hole-Selective Layer
JPCL8_2163.pdf
(1.01MB)
