Xiaoyu (Rayne) Zheng (Advisor)

Research Advised by Professor Xiaoyu (Rayne) Zheng

Zheng Group:  List of Projects | List of Researchers

BPNX1015: Ultra-Light Antennas via Charge Programmed Deposition Additive Manufacturing (New Project)

Ju Young Park

Multi-material printing employing charge-programmed material is utilized for phase array antenna fabrication, showcasing an ultra-lightweight RF phase array. Significant weight reduction is achieved through selective dielectric material printing. Our approach enables complex electronic device fabrication in one step, utilizing a mosaic of surface charge regions to deposit functional materials with precision. We demonstrate the inherently complex manufacturing process via homogeneous diffusion and fluid dynamics control.

Project is currently...

Scientists Advance Affordable, Sustainable Solution for Flat-Panel Displays and Wearable Tech

January 22, 2024
New 3D-printable material could enable cheaper manufacturing processes for next-gen OLED televisions, smartphones, light fixtures, and wearable devices

A research team led by Lawrence Berkeley National Laboratory (Berkeley Lab) has developed “supramolecular ink,” a new technology for use in OLED (organic light-emitting diode) displays or other electronic devices. Made of inexpensive, Earth-abundant elements instead...

Desheng Yao

Postdoctoral Researcher
Materials Science & Engineering
Professor Rayne Zheng (Advisor)

BPNX1014: Data-Driven Design of Metamaterials (New Project)

Marco Maurizi
Desheng Yao
Anish Satpati

The rapid development of additive manufacturing technologies has enabled the fabrication of truss metamaterials, i.e., a novel class of lightweight-yet-strong materials with engineered complex hierarchical structures. Manipulating the architecture over chemical composition dramatically expands the achievable materials design space, allowing to largely control the mechanical response of metamaterials. Despite the great advances made in this area, designing three-dimensional (3D) truss metamaterials under complex or extreme conditions with programmable response is still a...

BPNX1017: 3D Printing of Functional Materials (New Project)

Zhen Wang

3D printing enables the fabrication of 3D functional materials with complex structures associated to various functionalities. Developing 3D printing resins with different properties promises to fabricate a myriad of complex functional devices with e.g., self-sensing, actuation, and structural elements assembled in a designed 3D layout. In this project, we explore the achievable property space and the material-performance correlation of 3D printing by designing a series of photo-curable resins. We unveil how the functional groups of the resins synergistically impact the...

BPNX1021: Realizing Three-Dimensional Alignment of Two-Dimensional Material for Isotropic Properties Enhancement via Embedded Direct Ink Writing (New Project)

Qiyi Chen

The orientation of fibrous fillers, induced by shear forces during extrusion, has been demonstrated to significantly enhance mechanical properties, electrical/thermal conductivity, microwave attenuation etc., albeit primarily in a two-dimensional (2D) x-y plane. In this study, we present a novel approach for achieving fiber alignment in a three-dimensional (3D) context, with an emphasis on the Z-direction, by utilizing embedded 3D printing techniques. This process involves the extrusion and suspension of composite inks within a viscoelastic gel medium, during which the...

BPNX1018: Free Surface Investigation in Large-Area Projection Micro Stereolithography (New Project)

David Hahn

This project seeks to additively manufacture micro-architected cellular solids in high resolution, large area in hundreds of millimeters, containing millions of unit cells which are defect-free.

Project is currently funded by: Federal

BPNX1013: 3D Printing of Architected Hydrophones with Designed Beam Patterns (New Project)

Victor Couedel

Piezoelectric hydrophones are crucial for underwater applications such as communication and seafloor mapping. Limited by the brittleness of piezoelectric ceramics, conventional manufacturing methods restrict hydrophones’ shapes to simple geometries such as disks, cylinders, or spheres, which limits the sensitivity, directivity pattern, and working frequency bandwidth of the device.

We are developping a new class of high-performance 3D printed piezoelectric hydrophones consisting of rationally designed micro-architectures. Using a high-

BPNX1019: 3D Printing of Piezoelectric Materials and their US Transducers & Sensor Applications (New Project)

Haotian Lu

The performance of ultrasonic transducers is largely determined by the piezoelectric properties and geometries of their active elements. Due to the brittle nature of piezoceramics, existing processing tools for piezoelectric elements only achieve simple geometries, including flat disks, cylinders, cubes and rings. While advances in additive manufacturing give rise to free-form fabrication of piezoceramics, the resultant transducers suffer from high porosity, weak piezoelectric responses, and limited geometrical flexibility. We introduce optimized piezoceramic printing and...