Finding the Lost Open-Circuit Voltage in Polymer Solar Cells by UV-Ozone Treatment of the Nickel Acetate Anode Buffer Layer

Wang, Fuzhi; Sun, Gang; Liu, Cong; Liu, Jiyan; Hu, Siqian; Zheng, Huaili; Tan, Zhan’ao; Li, Yongfang

doi:10.1021/am5017705

Cited by 35 publications

(34 citation statements)

References 44 publications

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“…Solution‐processed, UVO‐treated nickel acetate (O‐NiAc) has been demonstrated to be an efficient AIL 272. The dipole species NiOOH, which was partially decomposed from NiAc, led to the increased WF.…”

Section: Hole‐transporting Materials As Ailsmentioning

confidence: 99%

Interfacial Materials for Organic Solar Cells: Recent Advances and Perspectives

2016

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Organic solar cells (OSCs) have shown great promise as low‐cost photovoltaic devices for solar energy conversion over the past decade. Interfacial engineering provides a powerful strategy to enhance efficiency and stability of OSCs. With the rapid advances of interface layer materials and active layer materials, power conversion efficiencies (PCEs) of both single‐junction and tandem OSCs have exceeded a landmark value of 10%. This review summarizes the latest advances in interfacial layers for single‐junction and tandem OSCs. Electron or hole transporting materials, including metal oxides, polymers/small‐molecules, metals and metal salts/complexes, carbon‐based materials, organic‐inorganic hybrids/composites, and other emerging materials, are systemically presented as cathode and anode interface layers for high performance OSCs. Meanwhile, incorporating these electron‐transporting and hole‐transporting layer materials as building blocks, a variety of interconnecting layers for conventional or inverted tandem OSCs are comprehensively discussed, along with their functions to bridge the difference between adjacent subcells. By analyzing the structure–property relationships of various interfacial materials, the important design rules for such materials towards high efficiency and stable OSCs are highlighted. Finally, we present a brief summary as well as some perspectives to help researchers understand the current challenges and opportunities in this emerging area of research.

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Section: Hole‐transporting Materials As Ailsmentioning

confidence: 99%

Interfacial Materials for Organic Solar Cells: Recent Advances and Perspectives

2016

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“…A key parameter that affects the performance of NiO films in OPV devices is the annealing temperature of NiO film 31 . A few reports also showed the improvement in the device performance with surface treatment of NiO film using oxygen plasma, UV ozone which was attributed to the change in the work function of NiO 33–35 . Solution processed NiO films have also been used as hole-extracting layers in perovskite solar cells 36–38 with cell efficiencies up to 14.0%.…”

Section: Introductionmentioning

confidence: 99%

Inkjet printing of NiO films and integration as hole transporting layers in polymer solar cells

Singh

Gupta

Garg

2017

Sci Rep

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Stability concerns of organic solar cell devices have led to the development of alternative hole transporting layers such as NiO which lead to superior device life times over conventional Poly(3,4-ethylenedioxythiophene) Polystyrene sulfonate (PEDOT:PSS) buffered solar cells. From the printability of such devices, it is imperative to be able to print NiO layers in the organic solar cell devices with normal architecture which has so far remained unreported. In this manuscript, we report on the successful ink-jet printing of very thin NiO thin films with controlled thickness and morphology and their integration in organic solar cell devices. The parameters that were found to strongly affect the formation of a thin yet continuous NiO film were substrate surface treatment, drop spacing, and substrate temperature during printing. The effect of these parameters was investigated through detailed morphological characterization using optical and atomic force microscopy and the results suggested that one can achieve a transmittance of ~89% for a ~18 nm thin NiO film with uniform structure and morphology, fabricated using a drop spacing of 50 μm and a heat treatment temperature of 400 °C. The devices fabricated with printed NiO hole transporting layers exhibit power conversion efficiencies comparable to the devices with spin coated NiO films.

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“…Polymer P3HT and PBDTBDD were used as donor materials and fullerene derivative PCBM was used as acceptor material. Deposition of the photoactive layer was under our optimized fabrication conditions [33][34][35]. The P3HT and PCBM (1:1 w/w) were dissolved in a 1,2-dichlorobenzene solution with a polymer concentration of 20 mg/mL.…”

Section: Device Fabrication and Characterizationmentioning

confidence: 99%

Efficient Polymer Solar Cells with Alcohol-Soluble Zirconium(IV) Isopropoxide Cathode Buffer Layer

Luo

Bai

et al. 2018

Energies

Self Cite

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Abstract:Interfacial materials are essential to the performance and stability of polymer solar cells (PSCs). Herein, solution-processed zirconium(IV) isopropoxide (Zr[OCH(CH 3 ) 2 ] 4 , ZrIPO) has been employed as an efficient cathode buffer layer between the Al cathode and photoactive layer. The ZrIPO buffer layer is prepared simply via spin-coating its isopropanol solution on the photoactive layer at room temperature without any post-treatment. When using ZrIPO/Al instead of the traditionally used Ca/Al cathode in PSCs, the short-circuit current density (J sc ) is significantly improved and the series resistance of the device is decreased. The power conversion efficiency (PCE) of the P3HT:PCBM-based device with ZrIPO buffer layer reaches 4.47% under the illumination of AM1.5G, 100 mW/cm 2 . A better performance with PCE of 8.07% is achieved when a low bandgap polymer PBDTBDD is selected as donor material. The results indicate that ZrIPO is a promising electron collection material as a substitute of the traditional low-work-function cathode for high performance PSCs.

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Finding the Lost Open-Circuit Voltage in Polymer Solar Cells by UV-Ozone Treatment of the Nickel Acetate Anode Buffer Layer

Cited by 35 publications

References 44 publications

Interfacial Materials for Organic Solar Cells: Recent Advances and Perspectives

Interfacial Materials for Organic Solar Cells: Recent Advances and Perspectives

Inkjet printing of NiO films and integration as hole transporting layers in polymer solar cells

Efficient Polymer Solar Cells with Alcohol-Soluble Zirconium(IV) Isopropoxide Cathode Buffer Layer

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