Polymer Solar Cells with a Low‐Temperature‐Annealed Sol–Gel‐Derived MoO<sub>x</sub> Film as a Hole Extraction Layer

Yang, Tingbin; Wang, Ming; Cao, Yan; Huang, Fei; Huang, Lin; Peng, Junbiao; Gong, Xiong; Cheng, Stephen Z. D.; Cao, Yong

doi:10.1002/aenm.201100598

Cited by 104 publications

(89 citation statements)

References 28 publications

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“…This effect is well-known in the context of inverted solar cell devices, where the use of a ZnO ETL on ITO blocks UV radiation from reaching the photoactive layer of OPV devices [40]. In standard devices, use of lower bandgap oxide-based HTL, such as MoOx, has also shown a similar advantage over PEDOT:PSS [12,41]. We have made a simple comparison of the lifetime of non-encapsulated P3HT:PC 60 BM solar cells based on PEDOT:PSS and CuI HTLs after being kept in N 2 environment.…”

Section: Standard P3ht:pc 60 Bm Solar Cells With Cui As Htlmentioning

confidence: 95%

“…While most hole transporting oxides are typically vacuum deposited, some of them have been successfully shown to be solution processable, including NiO x , [11] MoO 3 [12] and V 2 O 5 [13]. However, research is still directed toward identifying low temperature means of producing such oxides, as many of them require process temperatures incompatible with rollto-roll fabrication of OPV devices on plastic substrates.…”

Section: Introductionmentioning

confidence: 98%

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Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

et al. 2015

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Achievin Q3 g high performance and reliable organic solar cells hinges on the development of stable and energetically suitable hole transporting buffer layers in tune with the electrode and photoactive materials of the solar cell stack. Here we have identified solution-processed Copper(I) iodide (CuI) thin films with low-temperature processing conditions as an effective hole-transporting layer (HTL) for a wide range of polymer:fullerene bulk heterojunction (BHJ) systems. The solar cells using CuI HTL show higher power conversion efficiency (PCE) in standard device structure for polymer blends, up to PCE of 8.8%, as compared with poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, for a broad range of polymer:fullerene systems. The CuI layer properties and solar cell device behavior are shown to be remarkably robust and insensitive to a wide range of processing conditions of the HTL, including processing solvent, annealing temperature (room temperature up to 200 1C), and film thickness. CuI is also shown to improve the overall lifetime of solar cells in the standard architecture as compared to PEDOT:PSS. We further demonstrate promising solar cell performance when using CuI as top HTL in inverted device architecture. The observation of uncommon properties, such as photoconductivity of CuI and templating effects on the BHJ layer formation, is also discussed. This study points to CuI as being a good candidate to replace PEDOT:PSS in solution-processed solar cells thanks to the facile implementation and demonstrated robustness of CuI thin films. .sa (A. Amassian). Nano Energy (]]]]) ], ]]]-]]]Please cite this article as: K. Zhao, et al., Highly efficient organic solar cells based on a robust room-temperature solution-processed Copper iodide hole transporter, Nano Energy (2015), http://dx.

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Section: Standard P3ht:pc 60 Bm Solar Cells With Cui As Htlmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 98%

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

et al. 2015

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“…Potential alternatives for aforementioned purpose are transition metal oxides, such as V 2 O 5 [23][24][25], WO 3 [26][27][28], NiO [12,29], and MoO 3 [30][31][32][33][34][35][36][37], which have necessary semiconductor property and well physiochemical stability. Among this transition metal oxides, MoO 3 is one of the promising candidates due to its nontoxicity, deep electronic state and relative lower vaporization temperature (o800°C) which can easily deposited in vacuum [37].…”

Section: Introductionmentioning

confidence: 99%

A wide temperature tolerance, solution-processed MoOx interface layer for efficient and stable organic solar cells

Cai

Zhang

et al. 2017

Solar Energy Materials and Solar Cells

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“…15 However, harsh experimental conditions, such as high-temperature annealing 16 and vacuum deposition processes, required for metal oxides make them incompatible with the solution processes, and thus limit their practical applications. It is therefore desirable to develop suitable alternatives having better air-and thermal-stability, which are compatible with the solution-processable fabrication of solar cells.…”

Section: Introductionmentioning

confidence: 99%

Photophysical and charge transport properties of pyrazolines

et al. 2016

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Pyrazoline, an intense green emitting molecule both in solution and solid state, with extended p-conjugation has been synthesized via simple two-step reactions in high yields. Having the electron rich pyrazoline moiety with good redox behavior, pyrazolines can be potential candidates for charge transport material in organic electronic devices. UV-Visible absorption spectra of pyrazolines exhibit peaks below 400 nm, which is a desired feature for charge transport materials because it avoids interference with donor absorption that falls in the visible to NIR region. Electrochemical and theoretical studies show that the HOMO energy level lies at around À4.8 to 5.2 eV depending on the substituents, which is in fact compatible with the PEDOT:PSS/P3HT and work function of the ITO electrode. The experimental hole transport value, measured using the hole only device and space charge limited current (SCLC) method, was found to be in the range of 10 À5 to 10 À6 cm 2 V À1 s À1, depending on the substituents. The maximum hole mobility calculated by theoretical methods for the pyrazolines is 0.75 cm 2 V À1 s À1.

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Polymer Solar Cells with a Low‐Temperature‐Annealed Sol–Gel‐Derived MoO_x Film as a Hole Extraction Layer

Cited by 104 publications

References 28 publications

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

A wide temperature tolerance, solution-processed MoOx interface layer for efficient and stable organic solar cells

Photophysical and charge transport properties of pyrazolines

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Polymer Solar Cells with a Low‐Temperature‐Annealed Sol–Gel‐Derived MoOx Film as a Hole Extraction Layer

Cited by 104 publications

References 28 publications

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

A wide temperature tolerance, solution-processed MoOx interface layer for efficient and stable organic solar cells

Photophysical and charge transport properties of pyrazolines

Contact Info

Product

Resources

About

Polymer Solar Cells with a Low‐Temperature‐Annealed Sol–Gel‐Derived MoO_x Film as a Hole Extraction Layer