On the growth and characterization of mixed crystals of the triglycine sulphate family

Characterization of phosphoric acid doped TGS single crystals

“…Phosphoric acid (H 3 PO 4 ) as a dopant has been found to yield crystals with a large ''ac'' plane area useful for IR detector applications [5,6]. Even at a very low concentration level of H 3 PO 4 , a significant improvement in the pyroelectric coefficient, lowering of the dielectric permittivity at transition temperature (T c ) and increase in the coercive field of the TGS crystal have been reported [7][8][9].…”

Growth and characterization of biadmixtured TGS single crystals

“…The growth of doped TGS crystals has been undertaken by many researchers [3][4][5] to prevent depolarization with temperature, due to its low Curie temperature, so as to enhance internal bias, transition temperature and pyroelectric properties. To allow this, a variety of dopants like alanine, valine, histidine, etc., have been incorporated for investigation, thereby giving a permanently poled single-domain crystal [6][7][8][9][10][11]. The effect of organic dopants in TGS has been reported [12,13].…”

Thermal and electrical properties of Tri Glycine Sulpho Phosphate (TGSP) and L-Asparagine doped TGSP crystals

“…This is because the crystal forms of TGSP (10%) and TGSP (20%) were almost similar to that of pure TGS. Crystals formed above 50-mole % results as polycrystals [11]. Hence, TGSP crystals are chosen to grow from a solution of 30 mole % which gives a modified morphology.…”