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High-performance flexible Ag nanowire electrode with low-temperature atomic-layer-deposition fabrication of conductive-bridging ZnO film.

Duan YH, Duan Y, Chen P, Tao Y, Yang YQ, Zhao Y - Nanoscale Res Lett (2015)

Bottom Line: ZnO effectively fills in the voids of the AgNW mesh electrode, which is thus able to contact to the device all over the active area, to allow for efficient charge extraction/injection.Hole-only devices are fabricated to certify the functionality of the low-temperature ZnO film.Finally, we confirm that the ZnO film grown at a low temperature bring a significant contribution to the performance of the modified AgNW anode.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory on Integrated Optoelectronics, College of electronic science and engineering, Jilin University, 2699 Qianjin Street, Jilin, 130012 China.

ABSTRACT
As material for flexible transparent electrodes for organic photoelectric devices, the silver nanowires (AgNWs) have been widely studied. In this work, we propose a hybrid flexible anode with photopolymer substrate, which is composed of spin-coating-processed AgNW meshes and of zinc oxide (ZnO) prepared by low-temperature (60°C) atomic layer deposition. ZnO effectively fills in the voids of the AgNW mesh electrode, which is thus able to contact to the device all over the active area, to allow for efficient charge extraction/injection. Furthermore, ZnO grown by low temperature mainly relies on hole conduction to make the anode play a better role. Hole-only devices are fabricated to certify the functionality of the low-temperature ZnO film. Finally, we confirm that the ZnO film grown at a low temperature bring a significant contribution to the performance of the modified AgNW anode.

No MeSH data available.


Related in: MedlinePlus

The top surface of SEM images. (a) ZnO grown on Si substrate; (b) AgNWs on Si substrate; (c) AgNWs after being transferred and embedded in the photopolymer substrate via spin-coating process and peel off; (d) ZnO-AgNWs in the photopolymer substrate.
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Fig4: The top surface of SEM images. (a) ZnO grown on Si substrate; (b) AgNWs on Si substrate; (c) AgNWs after being transferred and embedded in the photopolymer substrate via spin-coating process and peel off; (d) ZnO-AgNWs in the photopolymer substrate.

Mentions: Shown in Figure 4 are SEM top views. Each grain in the ZnO film on a Si substrate is small and has a round shape (Figure 4a). This film structure may be due to sufficient thermal decomposition of the reactants. But crystal formation requires higher energy; thus, non-homogeneous films tend to form at very low growth temperatures. The RMS surface roughness of the ZnO film on Si substrate is 1.18 nm. Figure 4b shows AgNW randomly distributed on the Si substrate. After the peel-off process, the AgNW submerges in photopolymer film and retains the original random distribution (Figure 4c). After growing the ZnO film on a AgNW electrode with photopolymer substrate, we observe several dots similar to a number of small bubbles (Figure 4d). Moreover, the more intensive the nanowire, the more dots exist. This phenomenon may be due to the slight heating (60°C) of the photopolymer substrate, which leads to a tiny photopolymer expansion, and then to a separation at the boundary between different substances.Figure 4


High-performance flexible Ag nanowire electrode with low-temperature atomic-layer-deposition fabrication of conductive-bridging ZnO film.

Duan YH, Duan Y, Chen P, Tao Y, Yang YQ, Zhao Y - Nanoscale Res Lett (2015)

The top surface of SEM images. (a) ZnO grown on Si substrate; (b) AgNWs on Si substrate; (c) AgNWs after being transferred and embedded in the photopolymer substrate via spin-coating process and peel off; (d) ZnO-AgNWs in the photopolymer substrate.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385141&req=5

Fig4: The top surface of SEM images. (a) ZnO grown on Si substrate; (b) AgNWs on Si substrate; (c) AgNWs after being transferred and embedded in the photopolymer substrate via spin-coating process and peel off; (d) ZnO-AgNWs in the photopolymer substrate.
Mentions: Shown in Figure 4 are SEM top views. Each grain in the ZnO film on a Si substrate is small and has a round shape (Figure 4a). This film structure may be due to sufficient thermal decomposition of the reactants. But crystal formation requires higher energy; thus, non-homogeneous films tend to form at very low growth temperatures. The RMS surface roughness of the ZnO film on Si substrate is 1.18 nm. Figure 4b shows AgNW randomly distributed on the Si substrate. After the peel-off process, the AgNW submerges in photopolymer film and retains the original random distribution (Figure 4c). After growing the ZnO film on a AgNW electrode with photopolymer substrate, we observe several dots similar to a number of small bubbles (Figure 4d). Moreover, the more intensive the nanowire, the more dots exist. This phenomenon may be due to the slight heating (60°C) of the photopolymer substrate, which leads to a tiny photopolymer expansion, and then to a separation at the boundary between different substances.Figure 4

Bottom Line: ZnO effectively fills in the voids of the AgNW mesh electrode, which is thus able to contact to the device all over the active area, to allow for efficient charge extraction/injection.Hole-only devices are fabricated to certify the functionality of the low-temperature ZnO film.Finally, we confirm that the ZnO film grown at a low temperature bring a significant contribution to the performance of the modified AgNW anode.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory on Integrated Optoelectronics, College of electronic science and engineering, Jilin University, 2699 Qianjin Street, Jilin, 130012 China.

ABSTRACT
As material for flexible transparent electrodes for organic photoelectric devices, the silver nanowires (AgNWs) have been widely studied. In this work, we propose a hybrid flexible anode with photopolymer substrate, which is composed of spin-coating-processed AgNW meshes and of zinc oxide (ZnO) prepared by low-temperature (60°C) atomic layer deposition. ZnO effectively fills in the voids of the AgNW mesh electrode, which is thus able to contact to the device all over the active area, to allow for efficient charge extraction/injection. Furthermore, ZnO grown by low temperature mainly relies on hole conduction to make the anode play a better role. Hole-only devices are fabricated to certify the functionality of the low-temperature ZnO film. Finally, we confirm that the ZnO film grown at a low temperature bring a significant contribution to the performance of the modified AgNW anode.

No MeSH data available.


Related in: MedlinePlus