Integrated Perovskite/Organic Photovoltaics with Ultrahigh Photocurrent and Photoresponse Approaching 1000 nm
Mingyu Zhang, Tengfei Li, Jinde Yu, Guanghao Lu, Huanping Zhou, Xiaowei Zhan
Abstract
To enhance the photoresponse of commonly used perovskite materials in the near‐infrared (NIR) region, a fused‐ring electron acceptor (F8IC) with strong NIR absorption and high electron mobility is used to blend with a narrow‐bandgap polymer donor (PTB7‐Th) to construct an organic bulk heterojunction (OBHJ), and this OBHJ is then integrated with the perovskite solar cells (PSCs). The integrated perovskite/OBHJ solar cells exhibit a strong photoresponse approaching 1000 nm and an ultrahigh short‐circuit current density of 28.2 mA cm −2 , which is much higher than that of traditional PSCs and organic solar cells.
Topics & Concepts
Perovskite (structure)PhotocurrentMaterials scienceOptoelectronicsOrganic solar cellPhotovoltaicsAbsorption (acoustics)Hybrid solar cellHeterojunctionPolymer solar cellBand gapElectron acceptorAcceptorPhotovoltaic systemEnergy conversion efficiencyPolymerPhotochemistryChemistryCrystallographyBiologyPhysicsComposite materialCondensed matter physicsEcologyPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics