Study of solar cell fabrication using an electrostatic thick-film printing method

Teng, Robert K. F.; Mostafa, Amr; Karim, Alamgir

doi:10.1109/41.103438

Cited by 11 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The aforesaid printers are commercialized, yet, because of several inherent challenges of low resolution, head blockage, and overheating of functional inks, a novel inkjet-printing technique established on EHD atomization is an important research subject for numerous researchers in academia and industry [8][9][10]. Many investigators validated the viability of EHD inkjetprinting approach in realizing electronic devices by fabricating high-resolution metallic electrodes [11,12], high-aspectratio (thickness to linewidth) structures [13,14], self-powered stretchable sensors [15], stretchable photo-sensors [16], organic electronic memory devices [17], electrodes for solar cells [18], pads for LED display [19], and the source drain gate electrodes for thin-film transistors [20][21][22][23], having key features considerably smaller as compared to the printing nozzle [24,25]. Despite all the advantages offered and initial success of EHD printing in fine patterning, its low throughput is an important limitation that has hindered its conceivable extensive applications in electronics manufacturing [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of circuits by multi-nozzle electrohydrodynamic inkjet printing for soft wearable electronics

Khan

Rahman

Ali

et al. 2021

Journal of Materials Research

View full text Add to dashboard Cite

Wearable electronic devices are evolving from current rigid configurations to flexible and ultimately stretchable structures. These emerging systems require soft circuits for connecting the various working units of the overall system. This paper presents fabrication of soft circuits by electrohydrodynamic (EHD) inkjet-printing technique. Multi-nozzle EHD printing head is employed for rapid fabrication of electric circuits on a wide set of materials, including glass substrate (rigid), flexible polyethylene terephthalate (PET) films, and stretchable thermoplastic polyurethane (TPU) films. To avoid the effects of substrate materials on the jettability, the proposed multi-nozzle head is equipped with integrated individual counter electrodes (electrodes are placed above the printing substrate). High-resolution circuits (50 ± 5 µm) with high electrical conductivity (0.6 Ω □−1) on soft substrate materials validate our well-controlled multi-nozzle EHD printing approach. The produced circuits showed excellent flexibility (bending radius ≈ 5 mm radius), high stretchability (strain ≈ 100%), and long-term mechanical stability (500 cycles at 30% strain). The concept is further demonstrated with a soft strain sensor based on a multi-nozzle EHD-printed circuit, employed for monitoring the human motion (finger bending), indicating the potential applications of these circuits in soft wearable electronic devices. Graphic Abstract

show abstract