11:15 AM - 11:30 AM
▲ [8a-Z18-11] Formamidinium doped CsSnI3 perovskite for thermoelectric applications
Keywords:Perovskite, CsSnI3, Thermoelectric devices
Inorganic CsSnI3 crystal has been widely discussed recently due to promising thermoelectric applications owing to high electrical conductivity and ultra-low thermal conductivity. However, its poor tolerance factor (0.816) shows CsSnI3 crystal is much strained. Here, we study the thermoelectric properties of perovskite crystal under the influence of tuning of A-site with large radius cation FA+. The A-site doping improves the tolerance factor, alters the electronic and thermoelectric properties of perovskite crystal. A series of CsxFA1-xSnI3 thin films have been fabricated and the resulting thermoelectric performance is studied. The details will be discussed in the conference.