Exploring charge behavior at the terminal surface and charge separation interface of organo-lead perovskite using <i>in situ</i> surface photovoltage spectroscopy
Fan Wu, Kaidong Zhan, Tiansheng Zhang, Ronghua Jian, Qiquan Qiao
Abstract
The differences in charge separation and transfer processes between the 'non-charge-separation' terminal surface and perovskite/FTO 'charge-separation' interface have been studied using comparative lock-in amplifier-based SPV signals. The SPV phase vector model delves deeper into the direction of charge separation and trapping at the perovskite surface/interface.
Topics & Concepts
Surface photovoltagePerovskite (structure)Charge (physics)Materials scienceTrappingChemical physicsSurface chargeSeparation (statistics)Terminal (telecommunication)Surface (topology)Interface (matter)Analytical Chemistry (journal)Phase (matter)SpectroscopyOptoelectronicsChemistryContact anglePhysical chemistryChromatographyCrystallographyPhysicsComputer scienceGeometryBiologyMachine learningComposite materialOrganic chemistryEcologyQuantum mechanicsSessile drop techniqueMathematicsTelecommunicationsPerovskite Materials and ApplicationsTransition Metal Oxide NanomaterialsConducting polymers and applications