Friday, December 15, 2017

Amtech Announces Follow-On Order for Next Generation Solar ALD for PERC Cell Line

TEMPE, Ariz., Dec. 14, 2017 /PRNewswire/ -- Amtech Systems, Inc. (NASDAQ: ASYS), a global supplier of production equipment and related supplies for the solar, semiconductor, and LED markets, today announced its solar subsidiary, SoLayTec B.V., has received a follow-on order for three next generation solar Atomic Layer Deposition (ALD) systems. The order is expected to ship and be installed in this fiscal year. As a leading ALD supplier in the market, SoLayTec has booked a total of 25 ALD system orders since its inception, of which 15 will be used in mass production.

Depending on the capacity levels that are needed, SoLayTec offers three types of InPassion ALD. The main difference is the number of deposition units modules added in such a system. The basic three products offered are 4, 6 or 8 deposition units, which result in 2,400 wph, 3,600 wph or 4,500 wph respectively. (www.solaytec.com)
 
Fokko Pentinga, CEO and President of Amtech, commented, "This follow-on order brings the total ALD tools ordered by this specific customer to seven. Four systems have been put in production of PERC solar cells in the second half of fiscal 2017. The orders SoLayTec has received from this particular customer represent a total of 1GW of PERC production capacity. This follow-on order validates our customer's confidence in the performance capabilities of our spatial ALD system in high-volume production of PERC solar cells. There is a high level of enthusiasm in the PV marketplace for PERC solutions and this manufacturing platform supports our customers' goals to improve the total cost of ownership by increasing cell efficiency."

Thursday, December 14, 2017

Ultrahigh Elastic Strain Energy Storage in Metal-Oxide-Infiltrated Patterned Hybrid Polymer Nanocomposites

Phys.org reports: A team of scientists from the U.S. Department of Energy's Brookhaven National Laboratory and the University of Connecticut have developed a customizable nanomaterial that combines metallic strength with a foam-like ability to compress and spring back.
 
This scanning electron micrograph (SEM) image shows the nanomechanical testing tip passing over the arrays of custom-made nanopillars as it applies pressure to test elasticity and energy storage potential. The inset shows the structure of an individual hybrid nanopillar. Credit: Brookhaven National Laboratory

Read more at: https://phys.org/news/2017-12-scientists-nanoscale-pillars-memory-foam.html#jCp
This scanning electron micrograph (SEM) image shows the nanomechanical testing tip passing over the arrays of custom-made nanopillars as it applies pressure to test elasticity and energy storage potential. The inset shows the structure of an individual hybrid nanopillar. Credit: Brookhaven National Laboratory

Read more at: https://phys.org/news/2017-12-scientists-nanoscale-pillars-memory-foam.html#jCp

This scanning electron micrograph (SEM) image shows the nanomechanical testing tip passing over the arrays of custom-made nanopillars as it applies pressure to test elasticity and energy storage potential. The inset shows the structure of an individual hybrid nanopillar. Credit: Brookhaven National Laboratory

According to the supplemantary information The patterned SU-8 nanopillars were subjected to the AlOx infiltration synthesis at 85 °C using a commercial ALD system (Cambridge Nanotech Savannah S100). TMA (Sigma-Aldrich) was infiltrated into the polymer template for 5 min (vapor pressure <100 Torr), followed by N2 purging of the ALD chamber for 5 min (100 sccm). Then, water vapor was infiltrated into the polymer next for 5 min (pressure < 10 Torr), followed by N2 purging for 5 min, completing one synthesis cycle. A total of up to 16 cycles were applied.

This diagram shows the breakthrough synthesis process developed for these hybrid nanomaterials. First, electron-beam lithography carves the isolated nanopillars, then an aluminum vapor (TMA) infiltrates the pores in the structures, and finally exposure to water creates the final aluminum-oxide infused material. Credit: Brookhaven National Laboratory.

Please finde the abstract from Nanoletters below.
 
Read more at: LINK

Ultrahigh Elastic Strain Energy Storage in Metal-Oxide-Infiltrated Patterned Hybrid Polymer Nanocomposites

Nano Lett., 2017, 17 (12), pp 7416–7423
DOI: 10.1021/acs.nanolett.7b03238

Modulus of resilience, the measure of a material’s ability to store and release elastic strain energy, is critical for realizing advanced mechanical actuation technologies in micro/nanoelectromechanical systems. In general, engineering the modulus of resilience is difficult because it requires asymmetrically increasing yield strength and Young’s modulus against their mutual scaling behavior. This task becomes further challenging if it needs to be carried out at the nanometer scale. Here, we demonstrate organic–inorganic hybrid composite nanopillars with one of the highest modulus of resilience per density by utilizing vapor-phase aluminum oxide infiltration in lithographically patterned negative photoresist SU-8. In situ nanomechanical measurements reveal a metal-like high yield strength (∼500 MPa) with an unusually low, foam-like Young’s modulus (∼7 GPa), a unique pairing that yields ultrahigh modulus of resilience, reaching up to ∼24 MJ/m3 as well as exceptional modulus of resilience per density of ∼13.4 kJ/kg, surpassing those of most engineering materials. The hybrid polymer nanocomposite features lightweight, ultrahigh tunable modulus of resilience and versatile nanoscale lithographic patternability with potential for application as nanomechanical components which require ultrahigh mechanical resilience and strength.