A HIGH-PERFORMANCE ELECTRODE FOR SUPERCAPACITORS: CH3NH3PbI3 PEROVSKITE/MULTIWALLED CARBON NANOTUBE (MAPbI3/MWCNT) COMPOSITES
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
World Scientific Publ Co Pte Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study investigated the supercapacitor performance of the MAPbI(3)/MWCNT composite electrode produced by spin coating. The produced electrode's structural properties and surface morphology were analyzed by FESEM, EDX, XRD, and FTIR. Filling the voids in the MWCNT structure by MAPbI(3) perovskite crystals increases the charge density but provides ease of charge transport. The supercapacitor electrode performance was determined using specific capacitances calculated from current-voltage measurements in the potential range of -0.5-2V at 25, 50, 75, and 100mV/s scan rates. The maximum specific capacitance was 845.03F/g at 25mV/s. The electrode's capacitance ratios to the capacitance at 100mV/s were calculated as 25.8%, 37.3%, and 54.6% for 25, 50, and 75mV/s scan rates, respectively. Current-voltage cycles are important because they show that the electrode has a stable structure.
Açıklama
Anahtar Kelimeler
Perovskite, multiwalled carbon nanotube, supercapacitor electrode, specific capacitance, in-plane time-dependent I-V method
Kaynak
Surface Review and Letters
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
29
Sayı
12
