https://afmlab.physics.leidenuniv.nl/dokuwiki/ 2026-04-05T16:26:20+00:00 https://afmlab.physics.leidenuniv.nl/dokuwiki/ https://afmlab.physics.leidenuniv.nl/dokuwiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2005-02-02T16:14:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:afm_pictures&rev=1107360844&do=diff * 2-2-2005 Here are some AFM scans i made of PMMA on Ag2S surface image2 This is a 14.5 by 14.5 micron image of the surface. image2a This is the cross section of the line in the previous image. image7 Another time the same image... image7a With a different cross section shown here text/html 2005-02-14T16:43:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:ag2s&rev=1108399428&do=diff Ag2S News 12 Feb. 2005 New SEM pictures in : “SEM pictures”. Description follows 8 Feb. 2005 New section added: “ag2s thin film deposition” :!: 4 Feb. 2005 After writing an I-V measuring program for Ag2S samples and running a few measurements with it I have discovered that the Ag2S device (switch) does not really remain in the ON state if there is no (or very little) voltage applied to it. It decays within seconds to the OFF state, both for Kapton/Au/Ag2S/SilverPaint and SiO2/Au/Ag2S/Silve… text/html 2005-02-08T13:47:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:ag2s_thin_film_deposition&rev=1107870441&do=diff Feb. 08, 2005 Both and try to establish the optimal partial pressure of H2S during reactive sputter deposition of Cu2.0 - S1.0 film (chalcocite). My estimate of the values for partial pressure of H2S from these articles is 9×10-4 mbar and ~1×10 text/html 2005-01-28T16:49:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:alex_es_wish_list&rev=1106930984&do=diff * Take a clean Si (SiO2) wafer. AFM it. Put 5 min Ag on it. AFM it. Put 2 (or 5, or 10) min Ag2S on it. AFM it. This will give information on topography of the films we are making (most interesting is Ag2S roughness) * * Take a clean piece of glass (or wafer). Put 2/5/10 min Ag2S in the middle. Next, put a Ag strip (5 min?) across the Ag2S. Check if silver strip is continuous. text/html 2005-02-02T16:12:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:image2&rev=1107360753&do=diff text/html 2005-02-02T16:14:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:image2a&rev=1107360860&do=diff text/html 2005-02-02T16:14:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:image7&rev=1107360871&do=diff text/html 2005-02-02T16:14:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:image7a&rev=1107360891&do=diff text/html 2005-02-02T16:15:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:image9&rev=1107360903&do=diff text/html 2005-02-08T13:35:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:literature&rev=1107869748&do=diff Please put the pdfs of the articles you think are relevant to our research here. “Edit page”, use the reference format, and at the end press the “add images and other files” button (second from right on top button bar). Switching in Ag2S * text/html 2005-02-11T17:05:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:nano-lithography&rev=1108141541&do=diff Web Log * --- 10.02.2005 ... tried to write the “cross” again using 2-layer resist. 28.01.2005 ... tried to write the “cross” structure with e-beam with partial success. The small structure was written (pictures will follow), but for the larger text/html 2005-02-03T09:31:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:sample_register&rev=1107423071&do=diff 30/01/05 (darko) Half wafer sputtered Ag2S (10 min), than made bars (Ag 10 min, Ag 5 min, Au 5 min) such that half line is on the Ag2S, half on clean wafer. On SEM (didn’t save any pictures): Ag2S side: Ag 10 min showed cones with the distances about 1micron or less, between each other. On the edge of the Ag2S some sort of tree or root-like structure started forming, like the cones were connected. text/html 2005-02-21T15:32:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://afmlab.physics.leidenuniv.nl/dokuwiki/doku.php?id=ag2s:sem_pictures&rev=1108999975&do=diff * 20 Feb. 2005 - SEM pictures of nano-lith crosses in resist The sample is a developed double-layer PMGI-PMMA on Si/SiO2. First exposure were the crosses (small middle structures), second - the contact pads. And although I thought I did the write field alignment right this time, there is still some 20-30 micron mismatch between the cross and the pads