Improvement of Photovoltaic Performance of Colloidal Quantum Dot Solar Cells Using Organic Small Molecule as Hole-Selective Layer
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Scholar |
Otros documentos de la autoría: Zhang, Yaohong; Wu, Guohua; Mora-Sero, Ivan; Ding, Chao; Liu, Feng; Huang, Qingxun; Ogomi, Yuhei; Hayase, Shuzi; toyoda, taro; Wang, Ruixiang; Otsuki, Joe; Qing, Shen
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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http://dx.doi.org/10.1021/acs.jpclett.7b00683 |
Metadatos
Título
Improvement of Photovoltaic Performance of Colloidal Quantum Dot Solar Cells Using Organic Small Molecule as Hole-Selective LayerAutoría
Fecha de publicación
2017-04Editor
American Chemical SocietyCita bibliográfica
ZHANG, Yaohong, et al. Improvement of Photovoltaic Performance of Colloidal Quantum Dot Solar Cells Using Organic Small Molecule as Hole-Selective Layer. The Journal of Physical Chemistry Letters, 2017, vol. 8, no 10, p. 2163-2169.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b00683Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
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 ... [+]
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. [-]
Proyecto de investigación
Japan Science and Technology Agency (JST) (CREST program, PRESTO program, and KAKENHI grant No. 26286013 and grant No. 17H02736) ; Strategic Research Foundation at Private Universities (Nihon University and the MEXT Japan) and KAKENHI (grant No. 15K05486)Derechos de acceso
Copyright © 2017 American Chemical Society
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