Sentence examples for direct allow from inspiring English sources

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Two direct allowed optical transitions are observed.

(a) Direct allowed energy gap for P II (αhν 2.

(a) Direct allowed energy gap for P III (αhν 2.

(a) Direct allowed energy gap for PVC (αhν 2.

Since Ag2S nanoparticles have direct allowed transitions so we choose n = 1/2.

Theoretically, p equals to 2 or ½ for an indirect or direct allowed transition, respectively.

Here the value of n is 0.5 due to the direct allowed transition.

For n = ½, E g in Eq. 1 is the direct allowed band gap.

The values of m = 1/2, 3/2, 2, and 3 are for direct allowed, direct forbidden, indirect allowed, and indirect forbidden transitions, respectively.