Jan 22
In-place bonded semiconductor membranes as compliant substrates for IIIV compound devices Overcoming the critical thickness limit in pseudomorphic growth of lattice mismatched heterostructures is a fundamental challenge in heteroepitaxy. On-demand transfer of light-emitting structures to arbitrary host substrates is an important technological path for optoelectronics and photonics devices implementation. The use of freestanding membranes as …
Dec 06
The is a very nice article in Nature discussing, why the state of SP is so good in science. Indeed, the state alone is responsible for more than 50% of Brazilian science production and the leading place in South America. That this is of great importance for the country and the society is shown on …
Sep 19
The membrane based solar paper in APL is out in which I was happy to contribute a bit: “Pixelated GaSb solar cells on silicon by membrane bonding” We demonstrate thin-film GaSb solar cells which are isolated from a GaSb substrate and transferred to a Si substrate. We epitaxially grow ∼3.3 μm thick GaSb P on N …
Aug 03
A true comment from XKCD: Your manuscript “Don’t Pay $25 to Access Any of the Articles in this Journal: A Review of Preprint Repositories and Author Willingness to Email PDF Copies for Free” has also been rejected, but nice try. XKCD is published under Creative Commons Attribution-NonCommercial 2.5 License at xkcd.org.
Apr 18
Low-aberration beamline optics for synchrotron infrared nanospectroscopy Sync hrotron infrared nanospectroscopy is a recently developed technique that enables new possibilities in the broadband chemical analysis of materials in the nanoscale, far beyond the diffraction limit in this frequency domain. Synchrotron infrared ports have exploited mainly the high brightness advantage provided by electron storage rings across …
Jan 09
Our publication investigating the structure of overgrown transferred silicon membranes is finally out: Have a look to “Silicon Nanomembranes with Hybrid Crystal Orientations and Strain States“. Methods to integrate different crystal orientations, strain states, and compositions of semiconductors in planar and preferably flexible configurations may enable nontraditional sensing-, stimulating-, or communication-device applications. We combine …
Oct 03
Our paper regarding the interference of electrical signals to MFM measurements is out. First publications with Unicamp as affiliation. Have a look at: “Separating the influence of electric charges in magnetic force microscopy images of inhomogeneous metal samples“.
Aug 04
The article describing the IR beamline of the LNLS is out. I was involved in setting up the experiments and also enjoyed in-house beamtime in the setup phase allowing to write our “Nanoscale” article on graphene/BN structures. Synchrotron Radiation News is coined towards the community and should give a nice advertising to the beamline.
