Interface engineering of electrochemically deposited ZnO nanorods as electron transport layer in polymer solar cells using organic dyes

Shirvani, Majid; Naji, Leila

doi:10.1016/j.matchemphys.2020.124064

Cited by 19 publications

(9 citation statements)

References 75 publications

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“…The XRD pattern of the ZnO/FTO electrode is shown in Figure S4 of the ESI. Characteristic peaks with the hexagonal wurtzite structure of ZnO were detected, and they were in good agreement with the JCPDS file 36-1451 [26,31]. As a reference, in our previous work, mixed ZnO layers of nanoflowers and microrods were formed at an elevated temperature of 90 • C and showed a randomly distributed morphology rather than a vertically aligned one [25].…”

Section: Optimal Growth Time Of Zno Nanorodssupporting

confidence: 86%

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Enhancement in Photovoltaic Performance of Solar Cells by Electrostatic Adsorption of Dyes on ZnO Nanorods

et al. 2022

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ZnO nanorods were formed by chemical bath deposition on fluorine–doped tin oxide (FTO) glass and the photovoltaic performance of ZnO-based dye-sensitized solar cells (DSCs) was investigated. A DSC with 8 h-grown ZnO nanorods showed a higher power conversion efficiency (PCE) than devices with 4, 6, and 10 h-grown ones. Further improvement in PCE was achieved in a cell with a silver-ion-deposited ZnO/FTO electrode. By deposition of Ag+ on the surface of the 8 h-grown ZnO nanorods, the dye-loading amount increased by approximately 210%, compared to that of pristine ZnO nanorods, resulting in a 1.8-times higher PCE. A DSC with the pristine ZnO/FTO electrode showed a PCE of 0.629%, while in a device with the silver-ion-deposited ZnO/FTO, the PCE increased to 1.138%. In addition, interfacial resistance at the ZnO/dye/electrolyte was reduced to approximately 170 Ω from 460 Ω for the control cell with the pristine ZnO/FTO. We attributed the higher dye-loading amount in the silver-ion-deposited ZnO/FTO to the electrostatic attraction between the positively charged ZnO and carboxylate anions (–COO−) of the N719 dyes.

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Section: Optimal Growth Time Of Zno Nanorodssupporting

confidence: 86%

“…Detailed fabrication conditions of ZnO-based DSCs are provided in the ESI. An energy band diagram of the fabricated ZnO-based DSC is illustrated in Figure S2 of the ESI [26,27].…”

Section: Preparation Of Zno-based Dscsmentioning

confidence: 99%

Enhancement in Photovoltaic Performance of Solar Cells by Electrostatic Adsorption of Dyes on ZnO Nanorods

et al. 2022

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“…For ZnO NRs, the diffraction peaks at 2 θ = 34.5°, 36.3°, 47.5° and 62.9° distribute to (002), (101), (102) and (103) crystal planes of rutile ZnO NRs, respectively. There is a strong and sharp diffraction peak at 34.5°, indicating that the ZnO NRs fabricated by hydrothermal method are a typical fibrous zinc mineral structure with a c-axis selective orientation [ 31 ]. It displays that ZnO NRs preferentially grow in the direction perpendicular to the substrate.…”

Section: Resultsmentioning

confidence: 99%

Ultraviolet Photodetector Based on Poly(3,4-Ethylenedioxyselenophene)/ZnO Core–Shell Nanorods p-n Heterojunction

et al. 2022

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In this work, we successfully assembled an organic–inorganic core–shell hybrid p-n heterojunction ultraviolet photodetector by the electropolymerization deposition of poly(3,4-ethylenedioxyselenophene) (PEDOS) on the surface of zinc oxide nanoarrays (ZnO NRs). The structures of composite were confirmed by FTIR, UV–Vis, XRD and XPS. Mott–Schottky analysis was used to study the p-n heterojunction structure. The photodetection properties of ZnO NRs/PEDOS heterojunction ultraviolet photodetector were systematically investigated current–voltage (I–V) and current–time (I–t) analysis under different bias voltages. The results showed that PEDOS films uniformly grew on ZnO NRs surface and core–shell structure was formed. The p-n heterojunction structure was formed with strong built-in electric field between ZnO NRs and PEDOS. Under the irradiation of UV light, the device showed a good rectification behavior. The responsivity, detection rate and the external quantum efficiency of the ultraviolet photodetector reached to 247.7 A/W, 3.41 × 1012 Jones and 84,000% at 2 V bias, respectively. The rise time (τr) and fall time (τf) of ZnO NRs/PEDOS UV photodetector were obviously shortened compared to ZnO UV photodetector. The results show that the introduction of PEDOS effectively improves the performance of the UV photodetector.

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“…In sensor construction, the thickness of the coating layer and chemical contents with respect to the loading ceria were examined using various microscopic and spectroscopic approaches including scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) [29,30]. Recently, various methods have been reported for the synthesis of ZnONPs and MgONPs including thermal hydrolysis [31,32], microwave-assisted [33,34], and sol-gel seeding [35,36], and electrochemical deposition [37,38].…”

Section: Introductionmentioning

confidence: 99%

Atropine-Phosphotungestate Polymeric-Based Metal Oxide Nanoparticles for Potentiometric Detection in Pharmaceutical Dosage Forms

et al. 2022

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The new research presents highly conductive polymeric membranes with a large surface area to volume ratio of metal oxide nanoparticles that were used to determine atropine sulfate (AT) in commercial dosage forms. In sensing and biosensing applications, the nanomaterials zinc oxide (ZnONPs) and magnesium oxide (MgONPs) were employed as boosting potential electroactive materials. The electroactive atropine phosphotungstate (AT-PT) was created by combining atropine sulfate and phosphotungstic acid (PTA) and mixing it with polymeric polyvinyl chloride (PVC) with the plasticizer o-nitrophenyl octyl ether (o-NPOE). The modified sensors AT-PT-ZnONPs or AT-PT-MgONPs showed excellent selectivity and sensitivity for the measurements of atropine with a linear concentration range of 6.0 × 10−8 − 1.0 × 10−3 and 8.0 × 10−8 − 1.0 × 10−3 mol L−1 with regression equations of E(mV) = (56 ± 0.5) log [AT] − 294 and E(mV) = (54 ± 0.5) log [AT] − 422 for AT-PT-NPs or AT-PT-MgONPs sensors, respectively. The AT-PT coated wire sensor, on the other hand, showed a Nernstian response at 4.0 × 10−6 − 1.0 × 10−3 mol L−1 and a regression equation E(mV) = (52.1 ± 0.2) log [AT] + 198. The methodology-recommended guidelines were used to validate the suggested modified potentiometric systems against various criteria.

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Interface engineering of electrochemically deposited ZnO nanorods as electron transport layer in polymer solar cells using organic dyes

Cited by 19 publications

References 75 publications

Enhancement in Photovoltaic Performance of Solar Cells by Electrostatic Adsorption of Dyes on ZnO Nanorods

Enhancement in Photovoltaic Performance of Solar Cells by Electrostatic Adsorption of Dyes on ZnO Nanorods

Ultraviolet Photodetector Based on Poly(3,4-Ethylenedioxyselenophene)/ZnO Core–Shell Nanorods p-n Heterojunction

Atropine-Phosphotungestate Polymeric-Based Metal Oxide Nanoparticles for Potentiometric Detection in Pharmaceutical Dosage Forms

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