Environmentally compatible and highly improved hole transport materials (HTMs) based on benzotrithiophene (BTT) skeleton for perovskite as well as narrow bandgap donors for organic solar cells

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

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Study of Nanostructured Polymeric Composites Used for Organic Light Emitting Diodes and Organic Solar Cells

Journal of Nanomaterials ◽

10.1155/2012/190290 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6 ◽

Cited By ~ 5

Author(s):

Nguyen Nang Dinh ◽

Do Ngoc Chung ◽

Tran Thi Thao ◽

David Hui

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Light Emitting Diodes ◽

Hole Transport ◽

Organic Light Emitting Diodes ◽

Transport Layer ◽

Nanocomposite Films ◽

Hole Transport Layer ◽

Light Emitting ◽

Organic Light

Polymeric nanocomposite films from PEDOT and MEH-PPV embedded with surface modified TiO2nanoparticles for the hole transport layer and emission layer were prepared, respectively, for organic emitting diodes (OLEDs). The composite of MEH-PPV+nc-TiO2was used for organic solar cells (OSCs). The characterization of these nanocomposites and devices showed that electrical (I-Vcharacteristics) and spectroscopic (photoluminescent) properties of conjugate polymers were enhanced by the incorporation of nc-TiO2in the polymers. The organic light emitting diodes made from the nanocomposite films would exhibit a larger photonic efficiency and a longer lasting life. For the organic solar cells made from MEH-PPV+nc-TiO2composite, a fill factor reached a value of about 0.34. Under illumination by light with a power density of 50 mW/cm2, the photoelectrical conversion efficiency was about 0.15% corresponding to an open circuit voltageVoc= 0.126 V and a shortcut circuit current densityJsc= 1.18 mA/cm2.

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Graphdiyne oxide modified nano CuO as inorganic hole transport layer for efficient and stable organic solar cells

2D Materials ◽

10.1088/2053-1583/ac2a92 ◽

2021 ◽

Author(s):

Jianxiao Wang ◽

Le Liu ◽

Min Zhao ◽

Chenyu Han ◽

Xichang Bao ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Hole Transport ◽

Transport Layer ◽

Hole Transport Layer

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Selenopheno[3,2-b]thiophene-Based Narrow-Bandgap Nonfullerene Acceptor Enabling 13.3% Efficiency for Organic Solar Cells with Thickness-Insensitive Feature

ACS Energy Letters ◽

10.1021/acsenergylett.8b01808 ◽

2018 ◽

Vol 3 (12) ◽

pp. 2967-2976 ◽

Cited By ~ 63

Author(s):

Jin-Liang Wang ◽

Kai-Kai Liu ◽

Ling Hong ◽

Gao-Yang Ge ◽

Chao Zhang ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Narrow Bandgap ◽

Nonfullerene Acceptor

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Self-Organized Hole Transport Layers Based on Polythiophene Diblock Copolymers for Inverted Organic Solar Cells with High Efficiency

Chemistry of Materials ◽

10.1021/cm400297p ◽

2013 ◽

Vol 25 (6) ◽

pp. 897-904 ◽

Cited By ~ 47

Author(s):

Kai Yao ◽

Lie Chen ◽

Xun Chen ◽

Yiwang Chen

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Diblock Copolymers ◽

High Efficiency ◽

Hole Transport ◽

Self Organized ◽

Hole Transport Layers

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Study of nanostructured polymeric composites used for organic light emitting diodes and organic solar cells

World Journal of Engineering ◽

10.1260/1708-5284.9.5.399 ◽

2012 ◽

Vol 9 (5) ◽

pp. 399-406

Author(s):

Do Chung ◽

Nguyen Dinh ◽

Tran Thao ◽

Nguyen Nam ◽

Tran Trung ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Light Emitting Diodes ◽

Hole Transport ◽

Organic Light Emitting Diodes ◽

Transport Layer ◽

Nanocomposite Films ◽

Hole Transport Layer ◽

Light Emitting ◽

Organic Light

Polymeric nanocomposite films from PEDOT and MEH-PPV embedded with surface modified TiO2 nanoparticles were prepared, respectively for the hole transport layer (HTL) and emission layer (EL) in Organic Light Emitting Diodes (OLED). The composite of MEH-PPV + nc-TiO2 was used for Organic Solar Cells (OCS). The results from the characterization of the properties of the nanocomposites and devices showed that electrical (I-V characteristics) and spectroscopic (photoluminescent) properties of the conjugate polymers were enhanced due to the incorporation of nc-TiO2 in the polymers. The OLEDs made from the nanocomposite films would exhibit a larger photonic efficiency and a longer lasting life. For the OSC made from MEH-PPV + nc-TiO2 composite, the fill factor (FF) reached a value as high as 0.34. Under illumination of light with a power density of 50 mW/cm2, the photoelectrical conversion efficiency (PEC) was found to be of 0.15% corresponding to an open circuit voltage VOC = 1.15 V and a short-cut circuit current density JSC = 0.125 mA/cm2.

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