Table 1 The estimated bonds related to the FTIR with their positions in cm⁻¹.

From: A thin film optoelectronic photodetector of spherical and linear resonators via one-pot synthesis of Bi(III) oxide/polypyrrole nanocomposite

Peak Position (cm⁻¹)

Functional groups

Ppy

Bi2O3/Ppy

1701, 1545, and 1463

1631 and 1550

Ppy ring

1312

1399

C-N [15]

1177

1193

C-H [16]

-

611

Bi-O

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