Cheng-Hsin (Johnson) Lu Email & Phone Number

Taiwan

Hsinchu, Taiwan

• Additive manufacturing (3D printing technology) research and development (R&D), prototype verification and validation (V&V), materials quality assurance and quality control (QA/QC). International collaboration project management (PM) and communication.

Hsinchu City, Taiwan, Taiwan

• Investigated intermetallic compounds (IMCs) formation in Pb-free solder bonding joints for three-dimensional integrated circuit (3D IC) packaging technology.

• Researched and developed micropatterned diagnostic biochip for detection of microRNA (miRNA) in extracellular vesicles (EVs). Studied the effect of light, drug, and mechanical stress on the mitochondrial motility, calcium ion signaling, and reactive oxygen species (ROS) level of normal cells, cancer cells, and primary cortical neurons.

School Of Materials Science And Engineering

• Syntheses and characterizations of stable infrared PbSe/CdSe core-shell quantum dots, visible CdSe/CdZnSeS/ZnS chemical composition gradient quantum dots, and CsPbX3 cesium lead halide perovskite nanoplatelets via different methodologies including morphology control, absorption and emission wavelength tuning, and stability improvement for lasing, solar cell, sensor, and display applications.• Worked in a highly dynamic cross-disciplinary research group that covers a broad range of research fields including polymer nanoreactors for organic and inorganic nanoparticle synthesis and nanomaterials for photoelectrochemical activities such as semiconductor, oxide, or graphene for energy storage batteries and solar cells.

Materials Science And Engineering

• Visible and near infrared quantum dots synthesis, doping, coating and characterizations: Synthesis of air-stable colloidal quantum dots, including CdS, CdSe, PbS, PbSe, ZnS, ZnSe, CdPbS, CdPbSe, and CH3NH3PbBr3 Perovskite via low temperature synthesis in aqueous or organic medium. Solubility study via pH control, concentration control, and temperature control. Surface chemistry study via different capping molecules and ligand exchange process. Characterizations of the quantum dots including absorbance and photoluminescence spectra, size and zeta-potential measurement, elemental analysis and crystal structure characterizations, cyclic voltammetry and optoelectronic response measurement.• Double the efficiency of quantum dot sensitized solar cells by doping and surface modification of quantum dots: The absorption spectrum of the quantum dot sensitized solar cells can be tuned by different band gap quantum dots, and the interface resistance can be tuned by surface coating of the quantum dots.• Quantum dot white light LEDs: The desired correlated color temperature (CCT) or color rendering index (CRI) can be achieved by tuning the emission range of quantum dots via doping, coating, or heating. Polymer-quantum dot composite coatings fixing quantum dots in polymer matrix.

Sensor And Functional Materials Group

• Quantum dot synthesis, doping, coating and characterizations.• Quantum dot sensitized solar cells.• Quantum dot white light LEDs.

Mate345 Ceramic Processing Laboratory Course

• Taught, planned, and ran laboratory sessions including: Synthesis of nanoparticles, Zeta-potential measurement, optical and colloidal stability study, powder pressing and sintering, mechanical test, I-V characterization, density measurement, and surface morphology observation of different ceramics and oxides including Fe3O4, Al2O3, and ZnO.

Materials Science And Engineering

• Using different scale of Silica nanoparticles to create superhydrophobic surface.• Surface modification and morphology characterization of nanoparticles and thin films.• Created durable transparent superhydrophobic surface on solid and flexible substrates including commercial glass and fabrics using different scales of slilica nanoparticle.

Materials Science And Engineering

• Using conducting polymer PEDOT:PSS as the active layer of flexible thin film transistor.• Thin film coating via liquid phase and vapor phase chemical deposition.

Doctor Of Philosophy (Ph.D.), Materials Science And Engineering

Activities and Societies: Taiwanese Student Association - President

Master Of Science In Engineering (M.S.E.), Materials Science And Engineering

Bachelor Of Science (B.S.), Materials Science And Engineering