Morphology, Optical and Electrical Properties of Tin Oxide Thin Films Prepared by Spray Pyrolysis Method

Abstract

Transparent conducting tin oxide thin films have been prepared by spray pyrolysis technique. Structure, optical and electrical properties of prepared films at different concentration (0.1, 0.2,0.3,0.4) mol/litter were studied at substrate temperature (550ºC) .UV-Vis spectrophotometer shows that the transmittance increases with the decrease in the concentration of SnO 2 thin films and it received 87% for the lower concentration (0.1 mol/litter). From AFM image notice that the smoothness and homogeneous of the films are decreasing with increasing the aqueous solution molarity. I-V characteristic of the SnO 2 films shows the thin film behavior was close to Ohm's law. ‫اﻟﻤﺤ‬ ‫اﻟﻘﺼﺪﯾﺮ‬ ‫اوﻛﺴﯿﺪ‬ ‫ﻻﻏﺸﯿﺔ‬ ‫واﻟﻜﮭﺮﺑﺎﺋﯿﺔ‬ ‫,اﻟﺒﺼﺮﯾﺔ‬ ‫اﻟﺸﻜﻠﯿﺔ‬ ‫اﻟﺨﺼﺎﺋﺺ‬ ‫ﻀ‬ ‫ﺑﺘﻘﻨﯿﺔ‬ ‫ﺮه‬ ‫اﻟﻜﯿﻤﯿﺎﺋﻲ‬ ‫اﻟﺮش‬ ‫اﻟﺨﻼﺻﺔ‬ ‫اﻟﺒﺤﺚ‬ ‫ھﺬا‬ ‫ﻓﻲ‬ ‫واﻟﻜﮭﺮﺑﺎﺋﯿﺔ‬ ‫اﻟﺒﺼﺮﯾﺔ‬ ‫اﻟﺨﺼﺎﺋﺺ‬ ‫دراﺳﺔ‬ ‫ﺗﻢ‬ ‫اﻟﺘﺮﻛﯿﺒﯿﺔ‬ ‫و‬ ‫ﻷﻏﺸﯿﺔ‬ ‫اﻟﻘﺼﺪﯾﺮ‬ ‫اوﻛﺴﯿﺪ‬ ‫ﺛﻨﺎﺋﻲ‬ ‫اﻟﻤﻮﺻﻠﺔ‬ ‫و‬ ‫اﻟﺸﻔﺎﻓﺔ‬ ‫اﻟﻜﯿﻤﯿﺎﺋﻲ‬ ‫اﻟﺮش‬ ‫ﺑﻄﺮﯾﻘﺔ‬ ‫اﻟﻤﺤﻀﺮة‬ ‫ﻣﺨﺘﻠ‬ ‫ﺑﺘﺮاﻛﯿﺰ‬) ‫ﻔﺔ‬ 0.1 , 0.4 ,0.3 ,0.2 ‫ﻧﺘﺎﺋﺞ‬ ‫ﺧﻼل‬ ‫وﻣﻦ‬ ‫/ﻟﺘﺮ‬ ‫ﻣﻮل‬ (‫اﻟﻤﺮﺋﯿﺔ‬ ‫اﻻﺷﻌﺔ‬ ‫ﻣﻄﯿﺎف‬-‫ﺗﺮ‬ ‫ﻧﻘﺼﺎن‬ ‫ﻣﻊ‬ ‫ﺗﺰداد‬ ‫اﻟﻨﻔﺎذﯾﺔ‬ ‫ان‬ ‫ﻣﻼﺣﻈﺔ‬ ‫ﺗﻢ‬ ‫ﺑﻨﻔﺴﺠﯿﺔ‬ ‫اﻟﻔﻮق‬ ‫ﻛﯿﺰ‬ ‫اﻏﺸﯿﺔ‬ SnO 2 , ‫ﺣﯿﺚ‬ ‫وﺻﻠﺖ‬ ‫ﻟﻨﺴﺒﺔ‬ 87 % ‫اﻟﻤﺤ‬ ‫ﻟﻼﻏﺸﯿﺔ‬ ‫ﻀ‬ ‫ﺗﺮﻛﯿﺰ‬ ‫ﺑﺎﻗﻞ‬ ‫ﺮة‬) 0.1 (‫ﻣﻮﻻري‬. ‫ﺧﻼ‬ ‫ﻣﻦ‬ ‫ا‬ ‫ل‬ ‫اﻟﻄﺒﻮﻏﺮاﻓﯿﺔ‬ ‫ﻟﺼﻮر‬ ‫ﻟﻸﻏﺸﯿﺔ‬ ‫اﻟﻤ‬ ‫ﺤﻀ‬ ‫ﺑﺘ‬ ‫ﺮه‬ ‫ﺮ‬ ‫ﻣﺨﺘﻠﻔﺔ‬ ‫اﻛﯿﺰ‬ ‫و‬ ‫ان‬ ‫ﻟﻮﺣﻆ‬ ‫اﻟﺬري‬ ‫اﻟﻘﻮى‬ ‫ﺑﻤﺠﮭﺮ‬ ‫ﻗﯿﺎﺳﮭﺎ‬ ‫ﺗﻢ‬ ‫اﻟﺘﻲ‬ ‫زﯾﺎدة‬ ‫ﻣﻊ‬ ‫ﺗﻘﻞ‬ ‫اﻟﺴﻄﺢ‬ ‫واﻧﺘﻈﺎﻣﯿﺔ‬ ‫ﻧﻌﻮﻣﺔ‬ ‫اﻟﻤﻮﻻرﯾﺔ‬ ‫اﻟﻤﺎﺋﻲ‬ ‫ﻟﻠﻤﺤﻠﻮل‬ , ‫ﻟﺬﻟﻚ‬ ‫اﺿﺎﻓﺔ‬ ‫ا‬ ‫ظ‬ ‫ﺗﯿﺎر‬ ‫ﺧﺼﺎﺋﺺ‬ ‫ﮭﺮت‬-‫ﻻﻏﺸﯿﺔ‬ ‫اﻻوﻣﻲ‬ ‫اﻟﺴﻠﻮك‬ ‫ﻓﻮﻟﺘﯿﺔ‬ SnO 2 .