Chemical Vapor Deposition

Chemical vapor deposition is a nascent, single-step processing method for forming electronic polymer films on unconventional substrates and is increasingly important for creating flexible and wearable electronics.  A suite of vapor-phase polymerization reactions performed inside reduced-pressure hot wall reactors, collectively termed CVD, are the enabling methods we use to build novel devices.

CVD can be interpreted as a solvent-free synthetic technique, where multiple reagents converge in the vapor phase to effect a polymerization reaction.  In CVD, polymer films are formed directly on the substrate of interest as vapors of a chemical agent and precursor (or monomer) are introduced into an evacuated reactor chamber simultaneously. This method allows for conformal coating of rough surfaces, with features resolvable down to 100-200 nm. The modularity of CVD ensures that careful monomer choice will lead to the in situ film growth of a host of functional polymers displaying varied properties.

Dr. Andrew's Research

30 entries « 1 of 6 »

2022

Andrew, Trisha L; Rostaminia, Soha; Homayounfar, S Zohreh; Ganesan, Deepak

Perspective—Longitudinal Sleep Monitoring for All: Payoffs, Challenges and Outlook Journal Article

In: ECS Sensors Plus, vol. 1, no. 1, pp. 011602, 2022.

Abstract

Kiaghadi, Ali; Huang, Jin; Homayounfar, Seyedeh Zohreh; Andrew, Trisha; Ganesan, Deepak

FabToys: plush toys with large arrays of fabric-based pressure sensors to enable fine-grained interaction detection Inproceedings

In: Proceedings of the 20th Annual International Conference on Mobile Systems, Applications and Services, pp. 1–13, 2022.

Abstract

2021

Andrew, Trisha L

Fabric Pressure Sensors for Longitudinal Monitoring of Human Motion in Natural Environments Inproceedings

In: ECS Meeting Abstracts, pp. 1387, IOP Publishing 2021.

Abstract

Homayounfar, S Zohreh; Kiaghadi, Ali; Ganesan, Deepak; Andrew, Trisha L

All-Fabric Piezoionic Sensor for Simultaneous Sensing of Static and Dynamic Pressures Inproceedings

In: ECS Meeting Abstracts, pp. 1354, IOP Publishing 2021.

Abstract

All-Fabric Piezoionic Sensor for Simultaneous Sensing of Static and Dynamic Pressures

Homayounfar, S Zohreh; Kiaghadi, Ali; Ganesan, Deepak; Andrew, Trisha L

Materials Selection Principles for Sensing Human Motion and Physiological Signals Via Textiles Inproceedings

In: ECS Meeting Abstracts, pp. 1585, IOP Publishing 2021.

Abstract

Materials Selection Principles for Sensing Human Motion and Physiological Signals Via Textiles
30 entries « 1 of 6 »