Ultra-sensitive graphene membranes for microphone applications

Author:

Baglioni Gabriele1ORCID,Pezone Roberto2,Vollebregt Sten2,Cvetanović Zobenica Katarina3ORCID,Spasenović Marko3ORCID,Todorović Dejan4,Liu Hanqing5,Verbiest Gerard J.5,van der Zant Herre S. J.1ORCID,Steeneken Peter G.15

Affiliation:

1. Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands

2. Laboratory of Electronic Components, Technology and Materials, Delft University of Technology, The Netherlands

3. Center for Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Serbia

4. Dirigent Acoustics Ltd, Belgrade, Serbia

5. Department of Precision and Microsystems Engineering, Delft University of Technology, The Netherlands

Abstract

We investigate the sound response of graphene membranes via laser Doppler vibrometry. We show that graphene's mechanical compliance is superior to that of MEMS devices and thus can enable the fabrication of smaller and more performant microphones.

Funder

European Commission

Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science

Reference39 articles.

1. The Evolution of Integrated Interfaces for MEMS Microphones

2. A Review of MEMS Capacitive Microphones

3. Design Approaches of MEMS Microphones for Enhanced Performance

4. J.Chen , L.Liu , Z.Li , Z.Tan , Y.Xu and J.Ma , Single-chip condenser miniature microphone with a high sensitive circular corrugated diaphragm, Technical Digest. MEMS 2002 IEEE International Conference. Fifteenth IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.02CH 3 7266), 2002

5. Finite-element analysis of silicon condenser microphones with corrugated diaphragms

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