TY - GEN
T1 - The Effect of Tert-butylammonium Addition in Methylammonium Lead Iodide Perovskite Solar Cells
AU - Putri Hartono, Noor Titan
AU - Sun, Shijing
AU - Gelvez-Rueda, Maria
AU - Pierone, Polly
AU - Erodici, Matthew
AU - Yoo, Jason
AU - Wei, Fengxia
AU - Bawendi, Moungi
AU - Grozema, Ferdinand
AU - More Authors, null
PY - 2019
Y1 - 2019
N2 - Although methylammonium lead iodide (MAPI) perovskite solar cells have reached efficiencies above 20%, the material is environmentally unstable. Mixing MAPI with lower dimensional (LD) perovskites has been suggested to improve its stability in recent studies. However, the LD-mixed perovskites have lower device performance, likely as a result of limited charge-carrier mobility due to their decreased structural dimensionality. To understand this effect, we mixed large-A-site cation LD perovskites, tert-butylammonium lead iodide, with MAPI, and performed a device performance diagnostics. The results suggested although the charge-carrier lifetime was improved, the mobility decreased by a factor of 20. This contributed to a reduction in device efficiency by 2 orders of magnitude, indicating that mobility plays an important role in 3D/LD perovskite mixtures.
AB - Although methylammonium lead iodide (MAPI) perovskite solar cells have reached efficiencies above 20%, the material is environmentally unstable. Mixing MAPI with lower dimensional (LD) perovskites has been suggested to improve its stability in recent studies. However, the LD-mixed perovskites have lower device performance, likely as a result of limited charge-carrier mobility due to their decreased structural dimensionality. To understand this effect, we mixed large-A-site cation LD perovskites, tert-butylammonium lead iodide, with MAPI, and performed a device performance diagnostics. The results suggested although the charge-carrier lifetime was improved, the mobility decreased by a factor of 20. This contributed to a reduction in device efficiency by 2 orders of magnitude, indicating that mobility plays an important role in 3D/LD perovskite mixtures.
UR - http://www.scopus.com/inward/record.url?scp=85081553080&partnerID=8YFLogxK
U2 - 10.1109/PVSC40753.2019.8980608
DO - 10.1109/PVSC40753.2019.8980608
M3 - Conference contribution
AN - SCOPUS:85081553080
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1483
EP - 1486
BT - 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
PB - IEEE
T2 - 46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Y2 - 16 June 2019 through 21 June 2019
ER -