English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Optical anisotropy of carbon nitride thin films and photografted polystyrene brushes

Giusto, P., Kumru, B., Cruz, D., & Antonietti, M. (2022). Optical anisotropy of carbon nitride thin films and photografted polystyrene brushes. Advanced Optical Materials, 10(4): 2101965. doi:10.1002/adom.202101965.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
Article.pdf (Publisher version), 3MB
Name:
Article.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show

Creators

show
hide
 Creators:
Giusto, Paolo1, Author              
Kumru, Baris2, Author              
Cruz, Daniel, Author
Antonietti, Markus3, Author              
Affiliations:
1Paolo Giusto, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3245192              
2Baris Kumru, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3202957              
3Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

Content

show
hide
Free keywords: birefringence, carbon nitride, polymer brushes, refractive index, thin films
 Abstract: Polymer brushes on surfaces enable advanced material design. In the present contribution, transparent and flat photoactive polymeric carbon nitride (pCN) thin films are employed as a photoactive substrate and primer layer to grow polystyrene (PS) brushes. These films are then characterized by ellipsometry. For the first time herein is reported on the optical anisotropy of pCN thin films revealing a high positive birefringence up to 0.71 with an in-plane nD of 2.54 making this material of high interest for photonic devices. Furthermore and rather surprising, the photografted polystyrene brushes exhibit an unusual high negative birefringence, too. This negative birefringence can be attributed to a practically complete stretching of the polymer chains throughout growth in the radical chain process. As the stretched PS brushes grafted from the pCN surfaces also provide unusual surface properties, the overall system can be of great interest for photonics, but also as mechanical coating and membranes for gas separation.

Details

show
hide
Language(s): eng - English
 Dates: 2021-12-182022
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/adom.202101965
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Advanced Optical Materials
  Abbreviation : Adv. Opt. Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 10 (4) Sequence Number: 2101965 Start / End Page: - Identifier: ISSN: 2195-1071