Aligned HNT for mechanical reinforcement, abrasion resistance, and tranparency in solar cell coatings

Kenan Song, Roberta Polak, Khalid Askar, Michael F. Rubner, Robert E. Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Halloysite nanotubes (HNT), a kind of naturally formed ceramics, encompass high aspect ratio, stiffness and low cost while remain understudied about their coating usage. Theoretical and experimental results have shown a modulus as high as 400 GPa. In this study, HNT was included in polymer based thin films fabricated using coating method on glass substrate. Mechanical tests have shown a consistent increase in stiffness, hardness and scratch resistance as compared to polymer materials without HNT. Composite mechanics based calculations showed as high as 300 GPa in HNT modulus, which is close to theoretical predictions and top in literature. The high reinforcement as well as wear resistance was attributed to high tube orientations, as revealed from electron microscopy. By matching the refractive indices between segments in composites, the coating materials can display transparency up to 90% even at a high concentration of 20 wt% loadings of HNTs. This study aims at development of environmentally friendly and cost effective coating, which is highly potential to be commercialized in solar cell industries.

Original languageEnglish (US)
Title of host publicationMaterials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting
PublisherAIChE
Pages499-505
Number of pages7
Volume1
ISBN (Electronic)9781510834408
StatePublished - Jan 1 2016
Externally publishedYes
EventMaterials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting - San Francisco, United States
Duration: Nov 13 2016Nov 18 2016

Other

OtherMaterials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting
CountryUnited States
CitySan Francisco
Period11/13/1611/18/16

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)

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  • Cite this

    Song, K., Polak, R., Askar, K., Rubner, M. F., & Cohen, R. E. (2016). Aligned HNT for mechanical reinforcement, abrasion resistance, and tranparency in solar cell coatings. In Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting (Vol. 1, pp. 499-505). AIChE.