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The Fast and One-Step Growth of ZnO Nanorods on Cellulose Nanofibers for Highly Sensitive Photosensors
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara. Digital Cellulose Center, Sweden.ORCID-id: 0000-0002-2652-3454
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara. Digital Cellulose Center, Sweden.ORCID-id: 0000-0002-1949-6144
RISE Research Institutes of Sweden. Digital Cellulose Center, Sweden.ORCID-id: 0000-0001-9782-3860
RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign. Digital Cellulose Center, Sweden.ORCID-id: 0000-0002-9816-5270
Vise andre og tillknytning
2023 (engelsk)Inngår i: Nanomaterials, E-ISSN 2079-4991, Vol. 13, nr 18, artikkel-id 2611Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Cellulose is the most abundant organic material on our planet which has a key role in our daily life (e.g., paper, packaging). In recent years, the need for replacing fossil-based materials has expanded the application of cellulose and cellulose derivatives including into electronics and sensing. The combination of nanostructures with cellulose nanofibers (CNFs) is expected to create new opportunities for the development of innovative electronic devices. In this paper, we report on a single-step process for the low temperature (<100 °C), environmentally friendly, and fully scalable CNF-templated highly dense growth of zinc oxide (ZnO) nanorods (NRs). More specifically, the effect of the degree of substitution of the CNF (enzymatic CNFs and carboxymethylated CNFs with two different substitution levels) on the ZnO growth and the application of the developed ZnO NRs/CNF nanocomposites in the development of UV sensors is reported herein. The results of this investigation show that the growth and nature of ZnO NRs are strongly dependent on the charge of the CNFs; high charge promotes nanorod growth whereas with low charge, ZnO isotropic microstructures are created that are not attached to the CNFs. Devices manufactured via screen printing/drop-casting of the ZnO NRs/CNF nanocomposites demonstrate a good photo-sensing response with a very stable UV-induced photocurrent of 25.84 µA. This also exhibits excellent long-term stability with fast ON/OFF switching performance under the irradiance of a UV lamp (15 W). 

sted, utgiver, år, opplag, sider
Multidisciplinary Digital Publishing Institute (MDPI) , 2023. Vol. 13, nr 18, artikkel-id 2611
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-67710DOI: 10.3390/nano13182611Scopus ID: 2-s2.0-85172775433OAI: oai:DiVA.org:ri-67710DiVA, id: diva2:1809743
Forskningsfinansiär
EU, Horizon 2020, 761000Vinnova, 2016–05193
Merknad

The authors would like to acknowledge the Linköping University for the access to its laboratory facilities. The authors would like to acknowledge funding from Vinnova (Digital Cellulose Competence Center, Diary number 2016–05193) and the European Union’s Horizon 2020 research and innovation program (GREENSENSE, Grant Agreement No. 761000). Niklas Nordgren is acknowledged for the capturing the nice AFM images.

Tilgjengelig fra: 2023-11-06 Laget: 2023-11-06 Sist oppdatert: 2023-12-06bibliografisk kontrollert

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