عنوان مقاله :
ﺑﺮرﺳﯽ ﺗﺎﺛﯿﺮ ﺿﺨﺎﻣﺖ ﻻﯾﻪ ﻣﺘﺸﮑﻞ از ﻧﺎﻧﻮذرات2 TiO تهيه ﺷﺪه ﺑﻪ روش ﻫﺎﯾﺪروﺗﺮﻣﺎل ﺑﺮ ﻋﻤﻠﮑﺮد ﺳﻠﻮلﻫﺎي ﺧﻮرﺷﯿﺪي ﺣﺴﺎس ﺷﺪه ﺑﺎ ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ CdS
عنوان به زبان ديگر :
Investigation About the Effect of Hydrothermally TiO2 Nanocrystal layer Diameter on Performance of CdS Quantum Dot Sensitized Solar Cell
پديد آورندگان :
آﻫﻨﮕﺮاﻧﯽ ﻓﺮاﻫﺎﻧﯽ، فرزانه , ﻣﺮﻧﺪي، ﻣﺎزﯾﺎر داﻧﺸﮕﺎه اراك - داﻧﺸﮑﺪه ﻋﻠﻮم ﭘﺎﯾﻪ - ﮔﺮوه ﻓﯿﺰﯾﮏ، اراك
كليدواژه :
ﻧﺎﻧﻮذرات 2 TiO , روش ﻫﺎﯾﺪروﺗﺮﻣﺎل , ﺳﻠﻮل ﺧﻮرﺷﯿﺪي , ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ , CdS
چكيده فارسي :
در اﯾﻦ ﻣﻘﺎﻟﻪ دو ﺿﺨﺎﻣﺖ ﻣﺨﺘﻠﻒ از ﻻﯾﻪ ﻣﺘﺸﮑﻞ از ﻧﺎﻧﻮذرات 2 TiO در ﺳﺎﺧﺖ ﺳﻠﻮلﻫﺎي ﺧﻮرﺷﯿﺪي ﺣﺴﺎس ﺷﺪه ﺑﺎ ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ ﺑﻪ ﮐﺎر ﮔﺮﻓﺘﻪ ﻣﯽﺷﻮد. ﻧﺎﻧﻮذرات 02 TiO ﺑﻪ روش ﻫﺎﯾﺪروﺗﺮﻣﺎل ﺳﻨﺘﺰ ﺷﺪه و در دو ﺿﺨﺎﻣﺖ ﻣﺨﺘﻠﻒ 0/5±4 و 0/5 ±10 ﻣﯿﮑﺮوﻣﺘﺮ ﺑﺮ ﺳﻄﺢ زﯾﺮ ﻻﯾﻪ ﺷﯿﺸﻪ/ﻫﺎدي ﺷﻔﺎف ﺟﺎﯾﮕﺬاري ﻣﯽﮔﺮدﻧﺪ. ﺑﻪ ﻣﻨﻈﻮر ﺣﺴﺎس ﺳﺎزي ﻓﻮﺗﻮآﻧﺪ، ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ CdS ﺑﻪ روش ﺟﺬب ﻣﺘﻮاﻟﯽ ﻻﯾﻪ ﻫﺎي ﯾﻮﻧﯽ و اﻧﺠﺎم واﮐﻨﺶ (ﺳﯿﻼر) ﺑﺮ ﺳﻄﺢ ﻓﻮﺗﻮآﻧﺪ رﺷﺪ داده ﻣﯽﺷﻮﻧﺪ. ﻫﻢ ﭼﻨﯿﻦ ﺑﻪ ﻣﻨﻈﻮر ﯾﺎﻓﺘﻦ ﺑﻬﯿﻨﻪ ﭼﺮﺧﻪ ﻻﯾﻪ ﻧﺸﺎﻧﯽ ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ CdS ﻓﺮآﯾﻨﺪ ﻻﯾﻪ ﻧﺸﺎﻧﯽ در ﭼﺮﺧﻪ ﻫﺎي 2-7 اداﻣﻪ ﭘﯿﺪا ﻣﯽﮐﻨﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ ﺑﻬﺘﺮﯾﻦ ﺳﻠﻮل ﺧﻮرﺷﯿﺪي ﺣﺴﺎس ﺷﺪه ﺑﺎ ﻧﻘﺎط ﮐﻮاﻧﺘﻮﻣﯽ CdS در ﻃﯽ 6 دوره ﻻﯾﻪ ﻧﺸﺎﻧﯽ ﺑﺮ ﻻﯾﻪ 10 ﻣﯿﮑﺮوﻣﺘﺮي از2 TiO ﻧﺎﻧﻮذرات TiO ﺑﺪﺳﺖ آﻣﺪ. اﯾﻦ ﺳﻠﻮل ﺧﻮرﺷﯿﺪي داراي ﭘﺎراﻣﺘﺮﻫﺎي ﻓﻮﺗﻮوﻟﺘﺎﯾﯽ ﺟﺮﯾﺎن ﻣﺪار ﮐﻮﺗﺎه Jsc) 6/93) ﻣﯿﻠﯽ آﻣﭙﺮ/ﺳﺎﻧﺘﯽ ﻣﺘﺮ ﻣﺮﺑﻊ ، وﻟﺘﺎژ ﻣﺪار ﺑﺎز 610 (Voc) ﻣﯿﻠﯽ وﻟﺖ و ﺑﺎزدﻫﯽ ﺗﺒﺪﯾﻞ اﻧﺮژي %76/1 (η) ﻣﯽﺑﺎﺷﺪ. ﻫﻤﭽﻨﯿﻦ ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻧﺘﺎﯾﺞ آﻧﺎﻟﯿﺰ EIS، در ﻣﻮرد ﺑﻬﯿﻨﻪ ﺳﻠﻮل ﺧﻮرﺷﯿﺪي ﻣﯿﺰان Cµ ﺑﻪ ﻣﻘﺪار 240 ﻣﯿﮑﺮو ﻓﺎراد اﻓﺰاﯾﺶ ﯾﺎﻓﺖ ﮐﻪ اﯾﻦ ﻧﺸﺎن دﻫﻨﺪه اﻓﺰاﯾﺶ ﻣﯿﺰان ﺑﺎر اﻟﮑﺘﺮﯾﮑﯽ در ﻻﯾﻪ ﻓﻮﺗﻮآﻧﺪ و ﻫﻢ ﭼﻨﯿﻦ اﻓﺰاﯾﺶ اﻧﺘﻘﺎﻻت اﻟﮑﺘﺮوﻧﯽ اﺳﺖ. ﻫﻢ ﭼﻨﯿﻦ ﻃﻮل ﻋﻤﺮ ﺣﺎﻣﻞﻫﺎي ﺑﺎر در اﯾﻦ ﺳﻠﻮل ﺑﺮاﺑﺮ 9 ﻣﯿﻠﯽ ﺛﺎﻧﯿﻪ ﺑﻮد.
چكيده لاتين :
In this research two different diameter of TiO2 nanocrystal layer were employed in quantum dot sensitized solar cells. Hydrothermally TiO2 nanoparticles in different diameters 4±0.5 and 10±0.5 µm were deposited on FTO glass substrate as the photoanode scaffold. For sensitizing the photoanodes, CdS QDs were grown on the surface of photoanode through the Successive Ionic Layer Adsorption and Reaction (SILAR) method. The results demonstrated that the maximum efficiency was achieved for the cell with a photoanode made of 6 cycles of CdS deposition on 10 µm layer of TiO2 nanoparticles. The photovoltaic parameters of this cell were measured as Jsc of 6.93 mA/cm2, Voc of 610 mv and energy conversion efficiency of 1.76%.
