I use clc made of E7:CB15=62:38 , and make psclc by clc: NOA65=95:5 , UV=10mW/cm2 1 hour. But the transmittance spectra shows 40% for the highest , and 20% for the band gap , i don't know how to solve this problem.
38wt% of CB15 means it will be short pitch CLC. CB15 is a right-handed chiral dopant. Then it will reflect the light with the same handedness i.e, right circular polarized light and the left circularly polarized light will be transmitted. SO if you take transmittance spectra only 50% of transmittance you will get. I guess even reflection also you will get only 50%.
Buchaiah Gollapelli thanks a lot for your help. but what i mean is the transmittance reduced after i make the psclc , the picture is shown there .the blue line is the spectra of pure clc , the black one is psclc i mentioned in the question , the red one is use higher power of uv.
Yang Donghao Sorry for the misunderstanding. Now it's clear. I am adding references. maybe useful to you.
Buchaiah Gollapelli thanks a lot. i will read and give the feed back as fast as i can
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