ZnO films using a precursor solution irradiated with an electron beam as the cathode interfacial layer in inverted polymer solar cells

Kang, Rira; Noh, Yong-Jin; Yun, Jin-Mun; Kim, Hyun; Myoung, NoSoung; Lee, Eun‐Hye; Kim, Tae-Wook; Na, Seok‐In; Oh, Seung‐Hwan

doi:10.1039/c7ra02415k

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…The standard deviation for all parameters of i-PSCs was calculated over eight devices and is depicted in parentheses in Table 1. These results are similar to those reported from devices based on PTB7-Th:PC 70 BM with ZnO as ETL deposited by spincoating, 4,19,30 spray coating 20 and sputtering 31 techniques. Additionally, all devices reported herein showed to have good reproducibility.…”

Section: Resultssupporting

confidence: 89%

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Impact of inkjet printed ZnO electron transport layer on the characteristics of polymer solar cells

et al. 2018

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Section: Resultssupporting

confidence: 89%

“…Moreover, ZnO can be easily solution-processed on ITO substrates at room temperature by several coating methods ( i.e. spin-coating, 19 spray-coating 20 and dip-coating. 21 Spin-coating is the most commonly used method of deposition as it yields films with relatively high uniformity and well-controlled thickness.…”

Section: Introductionmentioning

confidence: 99%

Impact of inkjet printed ZnO electron transport layer on the characteristics of polymer solar cells

et al. 2018

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“…Figure demonstrates the high resolution XPS spectra of Ez and Eaz samples. While an anticipated peak of Zn 2p 3/2 appears at 1022 eV which is ascribed to the Zn 2+ state in the zinc oxide nanoflowers, a doublet peak arises at 1044 eV from the Zn 2p 1/2 state . The peak at 530 eV is related to the O 1s state of the oxygen and originates due to contributions from O 2– ionic moieties in the ZnO lattice as well as oxygen vacancies and from the chemisorbed oxygen adatoms.…”

Section: Resultsmentioning

confidence: 98%

“…While an anticipated peak of Zn 2p 3/2 appears at 1022 eV which is ascribed to the Zn 2+ state in the zinc oxide nanoflowers, a doublet peak arises at 1044 eV from the Zn 2p 1/2 state. 46 The peak at 530 eV is related to the O 1s state of the oxygen and originates due to contributions from O 2− ionic moieties in the ZnO lattice as well as oxygen vacancies and from the chemisorbed oxygen adatoms. Another doublet peaks at binding energies of 367.26 and 373.26 eV are visible for the Eaz sample corresponding to Ag 3d 5/2 and Ag 3d 3/2 states, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Sonication Assisted Hierarchical Decoration of Ag-NP on Zinc Oxide Nanoflower Impregnated Eggshell Membrane: Evaluation of Antibacterial Activity and in Vitro Cytocompatibility

Ray

Biswas

Roy

et al. 2019

ACS Sustainable Chem. Eng.

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Metal/metal oxide nanoparticles have long been used as an antibacterial substitute, but fabrication of an effective carrier or delivery matrix for achieving a sustain release profile with high bactericidal efficacy alongwith good cytocompatibility is still an unresolved challenge. Herein, the study demonstrates a facile and unique route to fabricate a hierarchical nanobiocomposite with effective loading of ZnO/silver nanoparticles (Ag–NPs) in order to attain excellent bactericidal efficacy with good and sustainable release profile. Surface functionalized eggshell membranes (ESM) were deployed as three-dimensional loading matrices for efficient loading of ZnO/Ag–NPs. A simple sonochemical guided approach was adopted to synthesize ZnO nanoflakes in situ onto the microfibrous ESM and decorate it with Ag–NPs to fabricate a nanobiocomposite. Microstructural analysis confirms successful anchorage of ZnO nanoflakes and Ag–NPs on microfibrous eggshell membrane thus reinstating hierarchical morphology of the nanobiocomposites. FT-IR spectra confirms the biochemical composition whereas XPS analysis ratifies the interaction between ZnO and Ag–NPs further substantiating metallic state of Ag. ICP-MS studies affirms excellent and sustainable release profile of nanoparticles from the nanobiocomposites. Owing to the synergistic activity of ZnO/Ag–NPs, the nanobiocomposites demonstrated exceptional bactericidal activity against Gram-negative, E. coli or P. aeruginosa, and Gram-positive, S. aureus or B. subtilis, bacterial cells. Moreover, inherent antibacterial property of microfibrous natural ESM contributes positively toward the overall bactericidal activity. Further, a direct exposure of nanobiocomposites with NIH 3T3 cells revealed the biocompatible nature of developed matrices. Prolonged exposure also indicated that the 3T3 cells tend to adhere onto the microfibrous nanobiocomposite without any observable deformation in cellular morphology. The architectural tribology and excellent bactericidal performance of the nanobiocomposites along with its cytocompatible nature manifests its application as an alternate platform for varying biomedical applications.

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“…In previous studies, most of the groups worked on the effects of protons, , electrons, − gamma (γ) irradiations, − and so forth on ZnO. The gamma irradiation technique has been useful in generating nanocomposites and nanoscale metals at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Gamma Ray Irradiation Enhances the Linkage of Cotton Fabrics Coated with ZnO Nanoparticles

et al. 2020

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In this work, we aim to study zinc oxide (ZnO)-based functional materials over cotton fabrics and their effects after gamma ray exposure of 9 kGy. We found that the binding of the nanoparticles with cotton fabrics can be enhanced after irradiation. This could be due to the oxygen deficiency or defects created in the interface between ZnO and cotton fabrics after irradiation. Near-edge X-ray absorption fine structure and X-ray photoelectron spectroscopy (XPS) were used to detect the oxygen inadequacies generated in the interior and at the surface of the ZnO nanoparticles after gamma ray exposure. XPS results showed that the binding energy of Zn shifts by 2 eV at 1.5 kGy and by 4 eV at 9 kGy. This huge shift of about 4 eV is completely different from other works due to the reaction that takes place on the interface between ZnO nanostructures and cotton fabrics after gamma ray irradiation. Overall, this work suggests that after gamma ray irradiation, there is an enhanced level of binding between the coated functional nanoparticles and cotton fabrics, which can be advantageous for the textile industries.

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ZnO films using a precursor solution irradiated with an electron beam as the cathode interfacial layer in inverted polymer solar cells

Abstract: We explore sol–gel ZnO irradiated with an electron beam (EB-ZnO) as a cathode interfacial layer for polymer solar cells.

Cited by 9 publications

References 31 publications

Impact of inkjet printed ZnO electron transport layer on the characteristics of polymer solar cells

Impact of inkjet printed ZnO electron transport layer on the characteristics of polymer solar cells

Sonication Assisted Hierarchical Decoration of Ag-NP on Zinc Oxide Nanoflower Impregnated Eggshell Membrane: Evaluation of Antibacterial Activity and in Vitro Cytocompatibility

Gamma Ray Irradiation Enhances the Linkage of Cotton Fabrics Coated with ZnO Nanoparticles

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