, Volume 25, Issue 4, pp 2405–2417 | Cite as

A tunable optoelectronic nanofibrillated cellulose/CdS quantum dot film with improved transmittance and strength

  • Chang-yuan Yan
  • Zhi-qiang Fang
  • Ai-min Tang
  • Wang-yu Liu
  • Yuan Liu
  • Hai-zhen Shi
Original Paper


Nanofibrillated cellulose (NFC) is an ideal building block in novel bio-based nanomaterials fabrication for various emerging applications. In this study, a biomass-based optoelectronic material of cadmium sulfide (CdS) quantum dots (QDs)-decorated TEMPO oxidized NFC was prepared by an in situ electrostatic adsorption method. The NFC/CdS QDs suspensions were then vacuum-filtrated to produce NFC/CdS QDs composite films. The morphology of the NFC/CdS QDs composites and their crystalline degree were studied by TEM and XRD measurement, respectively, and the mechanical and optoelectronic properties of the films were also investigated. The results indicated NFC/CdS QDs composite films exhibited excellent light transmittance and high elastic modulus while retaining prominent flexibility, superior optical and physical properties of pure NFC film. The light transmittance can be as high as 95% at 550 nm, and the elastic modulus reached up to 8.1 GPa. Homogeneous dispersion of CdS QDs with different size were obtained by varying carboxyl contents (molar ratio of COO:Cd2+ is 2:1), resulting in the tailored photoelectric effect of NFC/CdS QDs composite films. The photocurrent can be tuned from 0.71 to 1.98 μA. These results show great potential to extend the application of NFC in next-generation green flexible electronics, photocatalytic materials, and nanoscale photosensor.


Nanofibrillated cellulose CdS quantum dots Carboxyl groups Light transmittance Elastic modulus Optoelectronic films 



This work was supported by State Key Laboratory of Pulp and Paper Engineering (2016PY01, 2015C09), Natural Science Foundation of Guangdong Province (2016A030311052). Zhiqiang Fang would like to acknowledge acknowledged the funds from Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 31700508), Natural Science Foundation of Guangdong Province (Grant No. 2017A030310635), and Pearl River S&T Nova Program of Guangzhou.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Chang-yuan Yan
    • 1
  • Zhi-qiang Fang
    • 1
  • Ai-min Tang
    • 1
  • Wang-yu Liu
    • 2
  • Yuan Liu
    • 1
  • Hai-zhen Shi
    • 1
  1. 1.State Key Laboratory of Pulp and Paper EngineeringSouth China University of TechnologyGuangzhouChina
  2. 2.School of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhouChina

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