TY - JOUR
T1 - Single-Walled Carbon Nanotubes Enhance the Efficiency and Stability of Mesoscopic Perovskite Solar Cells
AU - Batmunkh, Munkhbayar
AU - Shearer, Cameron J.
AU - Bat-Erdene, Munkhjargal
AU - Biggs, Mark J.
AU - Shapter, Joseph G.
PY - 2017/6/14
Y1 - 2017/6/14
N2 - Carbon nanotubes are 1D nanocarbons with excellent properties and have been extensively used in various electronic and optoelectronic device applications including solar cells. Herein, we report a significant enhancement in the efficiency and stability of perovskite solar cells (PSCs) by employing single-walled carbon nanotubes (SWCNTs) in the mesoporous photoelectrode. It was found that SWCNTs provide both rapid electron transfer and advantageously shifts the conduction band minimum of the TiO2 photoelectrode and thus enhances all photovoltaic parameters of PSCs. The TiO2-SWCNTs photoelectrode based PSC device exhibited a power conversion efficiency (PCE) of up to 16.11%, while the device fabricated without SWCNTs displayed an efficiency of 13.53%. More importantly, we found that the SWCNTs in the TiO2 nanoparticles (TiO2 NPs) based photoelectrode suppress the hysteresis behavior and significantly enhance both the light and long-Term storage stability of the PSC devices. The present work provides important guidance for future investigations in utilizing carbonaceous materials for solar cells.
AB - Carbon nanotubes are 1D nanocarbons with excellent properties and have been extensively used in various electronic and optoelectronic device applications including solar cells. Herein, we report a significant enhancement in the efficiency and stability of perovskite solar cells (PSCs) by employing single-walled carbon nanotubes (SWCNTs) in the mesoporous photoelectrode. It was found that SWCNTs provide both rapid electron transfer and advantageously shifts the conduction band minimum of the TiO2 photoelectrode and thus enhances all photovoltaic parameters of PSCs. The TiO2-SWCNTs photoelectrode based PSC device exhibited a power conversion efficiency (PCE) of up to 16.11%, while the device fabricated without SWCNTs displayed an efficiency of 13.53%. More importantly, we found that the SWCNTs in the TiO2 nanoparticles (TiO2 NPs) based photoelectrode suppress the hysteresis behavior and significantly enhance both the light and long-Term storage stability of the PSC devices. The present work provides important guidance for future investigations in utilizing carbonaceous materials for solar cells.
KW - carbon nanotubes
KW - device performance
KW - device stability
KW - perovskite solar cells
KW - TiO photoelectrode
UR - http://www.scopus.com/inward/record.url?scp=85020804087&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/ARC/DP130101714
UR - http://purl.org/au-research/grants/ARC/DP150101354
UR - http://purl.org/au-research/grants/ARC/DP160101301
U2 - 10.1021/acsami.7b04894
DO - 10.1021/acsami.7b04894
M3 - Article
C2 - 28537374
AN - SCOPUS:85020804087
SN - 1944-8244
VL - 9
SP - 19945
EP - 19954
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 23
ER -
