دورية أكاديمية
Quasi-solid-state self-assembly of 1D-branched ZnSe/ZnS quantum rods into parallel monorail-like continuous films for solar devices
| العنوان: | Quasi-solid-state self-assembly of 1D-branched ZnSe/ZnS quantum rods into parallel monorail-like continuous films for solar devices |
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| المؤلفون: | Chen, D, Zhang, H, Miyazawa, K, Kojima, R, Zhang, P, Yang, L, Sun, Q, Shao, G, Fukuma, T, Gao, Y, Nguyen, NT, Raston, CL, Jia, G, Li, Q |
| بيانات النشر: | Elsevier BV |
| سنة النشر: | 2021 |
| المجموعة: | Griffith University: Griffith Research Online |
| مصطلحات موضوعية: | Macromolecular and materials chemistry, Materials engineering, Nanotechnology |
| الوصف: | Translating the extraordinary optoelectric properties of colloidal quantum rods (QRs) into functional devices requires multiscale structural control to preserve the nanoscale attributes as well as to introduce micro- and macroscale interactions between the building blocks. Self-assembly of anisotropic QRs into ordered nanostructures can tailor the photoelectric properties of the QRs, such as in light absorption, and charge separation and transfer. However, it remains a challenge to assemble anisotropic nanomaterial into centimeter-sized, multilayered continuous films that retain nanoscale properties in the fabricated macroscopic devices. We have developed a quasi-solid-state self-assembly of randomly oriented nanostructures for overcoming this challenge, demonstrated by the re-assembly of randomly packed ZnSe/ZnS QRs into aligned and ordered parallel monorails (PMs). These ZnSe/ZnS PMs show significant enhancement in photo-excited charge transport, boosting photocatalytic oxygen evolution rates and the enhancement of photoelectrochemical activities, with a photocurrent density of 18 μA/cm2, 5 times higher than the parent random packing of ZnSe/ZnS QRs. The ZnSe/ZnS PMs enrich the p-n heterojunctions, which can modulate charge carrier separation and transport at the interfaces. The new method has applicability for re-assembling randomly packed films of anisotropic nanoparticles into ordered nanostructures. Importantly, the extraordinary photoelectro-energy conversion behavior of the Type-I core/shell quantum materials illuminates the pathways for novel designed materials by tailoring the hierarchical structures at all scales. ; No Full Text |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2211-2855 |
| العلاقة: | Nano Energy; Chen, D; Zhang, H; Miyazawa, K; Kojima, R; Zhang, P; Yang, L; Sun, Q; Shao, G; Fukuma, T; Gao, Y; Nguyen, NT; Raston, CL; Jia, G; Li, Q; et al., Quasi-solid-state self-assembly of 1D-branched ZnSe/ZnS quantum rods into parallel monorail-like continuous films for solar devices, Nano Energy, 2021, 89, pp. 106348; http://hdl.handle.net/10072/407006Test |
| DOI: | 10.1016/j.nanoen.2021.106348 |
| الإتاحة: | https://doi.org/10.1016/j.nanoen.2021.106348Test http://hdl.handle.net/10072/407006Test |
| حقوق: | open access |
| رقم الانضمام: | edsbas.9B0334B6 |
| قاعدة البيانات: | BASE |
| تدمد: | 22112855 |
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| DOI: | 10.1016/j.nanoen.2021.106348 |