Figure S3: photoluminescence spectra of T12-CN p-terphenyl deposited by spin coating on glass substrate.
Caption: FIGURE 8: Photoluminescence emission spectra of T12 p-terphenyls deposited by spin coating and drop casting and glass substrate as reference.
The NPL/Imperial team's key discovery was that a different type of crystal, p-terphenyl doped with pentacene, could replace ruby and replicate the same "masing" process at room temperature.
In the long term, the challenge will be to identify different materials that can mase at room temperature while consuming less power than pentacene-doped p-terphenyl. New designs of maser that would make it smaller and more portable will also be investigated.
The internal standard, 40 [micro]g of p-terphenyl
, was added to samples prior to extraction or derivatization to account for slight variation in the experimental conditions.