TPD wide-bandgap polymers for solar cell application and their sensitization with small molecule dyes

Blankenburg, Lars; Sensfuß, Steffi; Schache, Hannes; Marten, Jan; Milker, Roland; Schrödner, M.

doi:10.1016/j.synthmet.2014.10.043

Cited by 6 publications

(4 citation statements)

References 57 publications

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“…Therefore, an emerging field in the integration of organic materials with 2D materials provides an exciting aspect on continuous 2D device fabrication. A hole transport material, Poly-( N,N ′-bis-4-butylphenyl- N,N ′-bisphenyl) benzidine (Poly-TPD), and an electron transport material, PCBM, are often used for hole and electron transporting layers in organic photodetectors and solar cells [35,36,37]. Two-dimensional WS 2 (conductive band edge at ca.…”

Section: Introductionmentioning

confidence: 99%

A Bilayer 2D-WS2/Organic-Based Heterojunction for High-Performance Photodetectors

Huang

et al. 2019

Nanomaterials

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Two-dimensional (2D) tungsten disulfide (WS2) has inspired great efforts in optoelectronics, such as in solar cells, light-emitting diodes, and photodetectors. However, chemical vapor deposition (CVD) grown 2D WS2 domains with the coexistence of a discontinuous single layer and multilayers are still not suitable for the fabrication of photodetectors on a large scale. An emerging field in the integration of organic materials with 2D materials offers the advantages of molecular diversity and flexibility to provide an exciting aspect on high-performance device applications. Herein, we fabricated a photodetector based on a 2D-WS2/organic semiconductor materials (mixture of the (Poly-(N,N′-bis-4-butylphenyl-N,N′-bisphenyl) benzidine and Phenyl-C61-butyric acid methyl ester (Poly-TPD/PCBM)) heterojunction. The application of Poly-TPD/PCBM organic blend film enhanced light absorption, electrically connected the isolated WS2 domains, and promoted the separation of electron-hole pairs. The generated exciton could sufficiently diffuse to the interface of the WS2 and the organic blend layers for efficient charge separation, where Poly-TPD was favorable for hole carrier transport and PCBM for electron transport to their respective electrodes. We show that the photodetector exhibited high responsivity, detectivity, and an on/off ratio of 0.1 A/W, 1.1 × 1011 Jones, and 100, respectively. In addition, the photodetector showed a broad spectral response from 500 nm to 750 nm, with a peak external quantum efficiency (EQE) of 8%. Our work offers a facile solution-coating process combined with a CVD technique to prepare an inorganic/organic heterojunction photodetector with high performance on silicon substrate.

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Section: Introductionmentioning

confidence: 99%

A Bilayer 2D-WS2/Organic-Based Heterojunction for High-Performance Photodetectors

Huang

et al. 2019

Nanomaterials

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“…Other details of the CV were the same as described in our previous article [ 19 ]. The obtained values of the HOMO and LUMO energy levels for Cu-PP as well as for poly-TPD and PCBM [ 14 ] are shown in Figure 2 b.…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, poly-TPD can exhibit photoconductivity. A blend of an electron donor (D) derivative of poly-TPD and an electron acceptor (A) PCBM (phenyl-C 61 -butyric acid methyl ester) was shown to enhance light absorption and promote the separation of electron–hole pairs in the photoactive film of an inorganic/organic heterojunction-based photodetector [ 13 ] and organic photovoltaic cell [ 14 ]. The photoconductivity spectrum of the poly-TPD:PCBM blend was additively composed of the absorption spectra of the polymer and PCBM, and to expand the photosensitive spectrum, sensitizing additives were introduced into the D-A composite.…”

Section: Introductionmentioning

confidence: 99%

Charge Carrier Mobility in Poly(N,N′-bis-4-butylphenyl-N,N′-bisphenyl)benzidine Composites with Electron Acceptor Molecules

Tameev,

Aleksandrov,

Sayarov

et al. 2024

Polymers

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Polymer composites based on poly(N,N′-bis-4-butylphenyl-N,N′-bisphenyl)benzidine (poly-TPD) with PCBM and copper(II) pyropheophorbide derivative (Cu-PP) were developed. In thin films of the poly-TPD and Cu-PP composites, the charge carrier mobility was investigated for the first time. In the ternary poly-TPD:PCBM:Cu-PP composite, the electron and hole mobilities are the most balanced compared to binary composites and the photoconductivity is enhanced due to the sensitization by Cu-PP in blue and red spectral ranges. The new composites are promising for use in the development of photodetectors.

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“…The results obtained for a device comprising a binary blend of poly-TPD and PC 61 BM are included in Table 1 as a reference and the performance is similar to previous reports. 63 When compared to the poly-TPD/PC 61 BM binary reference, the inclusion of either 1a, 2a, or 3a in the corresponding ternary ), and a decrease in ll factor (FF) to result in an overall lower power conversion efficiency (PCE) ( Table 3). These results can be understood by considering that the open-ring isomers of the DAE dyes have an overlapping absorption with both poly-TPD and PC 61 BM and dilute the blend, which reduces charge generation as absorption by the open-ring isomers of the DAEs does not result in charge generation.…”

Section: Open-ring Isomermentioning

confidence: 99%

Photochromic organic solar cells based on diarylethenes

2020

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TPD wide-bandgap polymers for solar cell application and their sensitization with small molecule dyes

Cited by 6 publications

References 57 publications

A Bilayer 2D-WS2/Organic-Based Heterojunction for High-Performance Photodetectors

A Bilayer 2D-WS2/Organic-Based Heterojunction for High-Performance Photodetectors

Charge Carrier Mobility in Poly(N,N′-bis-4-butylphenyl-N,N′-bisphenyl)benzidine Composites with Electron Acceptor Molecules

Photochromic organic solar cells based on diarylethenes

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