Youtor
Transmittance to absorbance conversion UVvis spectroscopy for band energy calculation
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=veBkP1_rZS8
How to convert transmittance data to absorbance uv-vis spectroscopy • According to beer’s law • Absorbance A =-logT% • A = -log I/I0 • Where A is absorbance • I is the Intensity of light transmitted through the sample solution • I0 is the intensity of incident light, 100 percent I0=100 • Solving above equation • A=-(logI-logI0)= logI0 - logI=log(100)-logI=2-logI • A=2-logI • We will use this equation to convert transmittance data to absorbance • Lets convert • This is the required absorbance vs wavelength graph • Using absorbance one can easily calculate the band gap or bandenergy watch my previous video for • band gap calculation form absorbance data • Lets plot the wavelength vs absorbance • Thank you for watching subscribe easyedu for more video • #transmittance #absorbance #beer'slaw #UVvis #opticalporperties #bandgap #bandenergy #semiconductor
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