Uploaded October 2024 | Updated September 2026, 1 day ago
#photochromic #memristor #CMTE
A first approach for a memristor based on a bistable photochromic dye. The photochromic substance I'm using has the catchy name cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (or 1,2-bis(2,4,5-trimethyl-3-thienyl)-cis-1,2-dicyanoethene). Fortunately, there is an abbreviation: CMTE. The substance is costly (300 euros for 1 g), toxic, and difficult for private researchers to obtain. Nevertheless, I was determined to realize this idea, and I finally succeeded.
A few additional words about the function of the photochromic memristor: The 405 nm laser “burns” a cone of closed-form CMTE into the 3-dimensional array of CMTE molecules. As a result, the absorbance of the array increases over time (see Beer-Lambert law). The interesting region is in the first 1000 ms, where Ev changes considerably, after which saturation occurs and the graph approaches an asymptote.
#photochromic #memristor #CMTE
A first approach for a memristor based on a bistable photochromic dye. The photochromic substance I'm using has the catchy name cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (or 1,2-bis(2,4,5-trimethyl-3-thienyl)-cis-1,2-dicyanoethene). Fortunately, there is an abbreviation: CMTE. The substance is costly (300 euros for 1 g), toxic, and difficult for private researchers to obtain. Nevertheless, I was determined to realize this idea, and I finally succeeded.
A few additional words about the function of the photochromic memristor: The 405 nm laser “burns” a cone of closed-form CMTE into the 3-dimensional array of CMTE molecules. As a result, the absorbance of the array increases over time (see Beer-Lambert law). The interesting region is in the first 1000 ms, where Ev changes considerably, after which saturation occurs and the graph approaches an asymptote.
