Pre-Treatment of Silver Particles as a Basis for Functional Toner

Büttner, Dustin; Diel, Waldemar; Krüger, Klaus; Zobrist, Beat

doi:10.2352/issn.2169-4451.2011.27.1.art00012_2

Cited by 2 publications

(4 citation statements)

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“…In its two-component developer system, the silver toner particles are mixed with an off-the-shelf carrier to generate their charge. This flexible and robust printing system has proven its suitability to print conductive silver lines in numerous experiments performed prior [6,7,8].…”

Section: Prior Studies and Main Focusmentioning

confidence: 99%

“…Despite the mentioned issues, the challenges in printing conductive powder in a electrophotographic system could be overcome by developing a method to coat silver particles with polymer before they enter the toner production process [6]. So far, the so-coated silver particles yielded two toners, C02 containing flake-shaped particles, and C03, containing spherical particles.…”

Section: Prior Studies and Main Focusmentioning

confidence: 99%

“…Charge distribution of C03 toner (mean q/d value of -5.0 fC/10 µm, between 1.7 and 3.3 % of positively charged particles) [6] Nevertheless, some important issues could not be solved yet. First, the root cause for the traverse cracks is still unknown due to the manifold changes performed when comparing C02 to C03.…”

Section: Figurementioning

confidence: 99%

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Improving Performance of Laser-Printed Conductive Silver Lines

Büttner¹,

Krüger

2012

Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT)

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Within the last decade, large efforts were made to implement digital printing as a production method for printed electronics. Especially in production of thick-film electronics, innovation is pushed forward to overcome the lacks of established screen-printing regarding flexibility and tooling. Besides the numerous approaches in using ink-jet printing for printed electronics, researchers at Helmut Schmidt University already showed huge progress in applying electrophotography (“laser printing”) as a method to print conductive silver lines in order to form a conductive layout for thick-film circuits. Electrophotography is a solvent-free method, able to directly print silver toner onto ceramic substrates, forming a conductive line after firing. Benefits are high speeds and flexibility and a huge potential regarding precision. Now, after the feasibility of the method was proven and even functional conductive layouts like RFID coils were printed, the next steps have to be taken towards developing electrophotography to an applicable method in a thick-film production process. Thus, this paper describes the efforts in improving the method's performance. Different kinds of silver particles are tested towards their possibility of forming a silver toner. The resulting silver lines are examined regarding conductivity and printing precision. Also, surface treatment of substrates is considered as a method to reduce the number of required print cycles. Corresponding tests are performed. Furthermore, different firing profiles are tested towards their influence onto the resulting silver lines. Combining the results of these examinations, the performance of conductive silver lines could be improved significantly.

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Section: Prior Studies and Main Focusmentioning

confidence: 99%

Section: Prior Studies and Main Focusmentioning

confidence: 99%

See 1 more Smart Citation

Improving Performance of Laser-Printed Conductive Silver Lines

Büttner¹,

Krüger

2012

Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT)

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“…Despite the increased printing speeds as compared to ink-based methods, xerography is under explored as a route to printing electronics. Xerography has been studied as a route to the printing of conductive paths of metals by the modification of toner to contain metallic particles or printing of coated metallic toner. − The printing of semiconductors is unexplored and warrants development.…”

Section: Introductionmentioning

confidence: 99%

Semiconductor Deposition via Laser Printing of a Bespoke Toner Containing Metal Xanthate Complexes

McNaughter,

Moore,

Yeates

et al. 2024

ACS Appl. Eng. Mater.

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A methodology to use laser printing, a form of electrophotography, to print metal chalcogenide complexes on paper, is described. After fusing the toner to paper, a heating step is used to cause the printed metal xanthate complexes to thermolyze within the toner and form three target metal chalcogenides: CuS, SnS, and ZnS. To achieve this, we synthesize a poly(styrene-co-n-butyl acrylate) thermopolymer that emulates the thermal properties of a commercial toner and is also solution processable with the metal xanthate complexes used: [Zn(S 2 COEt) 2 ], [Cu(S 2 COEt)•(PPh 3 ) 2 ], and [Sn(S 2 COEt) 2 ]. We demonstrate through energy dispersive X-ray mapping that the toner is deposited following printing and that thermolysis of the metal xanthate complexes occurs in the fused toner, demonstrating the first example of laser printing of inorganic complexes and, in turn, semiconductors.

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Pre-Treatment of Silver Particles as a Basis for Functional Toner

Cited by 2 publications

References 0 publications

Improving Performance of Laser-Printed Conductive Silver Lines

Improving Performance of Laser-Printed Conductive Silver Lines

Semiconductor Deposition via Laser Printing of a Bespoke Toner Containing Metal Xanthate Complexes

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