TY - JOUR ID - 14653 TI -  Electric Field-effect-assisted Persistent Photoconductivity In CZTS JO - Advanced Materials Letters JA - AML LA - en SN - 0976-3961 AU - Muhunthan, Nadarajah AU - P. Singh, Om AU - N. Singh, Vidya AU - N. Sood, Kedar AD - Y1 - 2015 PY - 2015 VL - 6 IS - 4 SP - 290 EP - 293 KW - sputtering KW - CZTS thin film KW - persistent photoconductivity KW - defects DO - 10.5185/amlett.2015.5704 N2 - Copper zinc tin sulfide (CZTS) thin film was deposited by co-sputtering metal targets and post-deposition sulfurization in H2S. Temperature-dependent electrical conductivity and photoconductivity effects in CZTS are studied. The low temperature electrical conductivity measurement shows acceptor level energy value as 36.85 meV. A large decay time of 108 s at 300K, 99 s at 200K and 94 s at 100K after switching off the light source was observed. The decay behavior of this persistent photoconductivity (PPC) in CZTS follows the double exponential function. The results show that defects are responsible for the observed PPC in CZTS. The combined measurements of low temperature electrical conductivity and photoconductivity give account of the defect level. Control of these defects can improve the quality of material and thus the resulting device.   UR - https://aml.iaamonline.org/article_14653.html L1 - https://aml.iaamonline.org/article_14653_1287f596ea232e6ca103117369094e90.pdf ER -