Conjugated polyelectrolyte interlayer for perovskite optoelectronic devices
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초록
내용
The outstanding magnetic, electrical, and optical properties of metal halide perovskites (MHPs) have led to tremendous attraction from the optoelectronic research community within recent decades, and they have been widely applied to photovoltaics, light emitting diodes (LEDs), lasers, photodetectors, field effect transistors, and solar concentrators. For perovskite LEDs (PeLEDs) and perovskite solar cells (PeSCs) applications, appropriate charge transport layers (CTLs) are crucial for device performance and stability. The CTLs should have suitable energy levels for effective charge injection/transport while blocking opposite charges. Moreover, the CTL below the perovskite layer is critical because it significantly affects the crystal growth of the perovskite layer and its interfacial defects. In this presentation, a new series of conjugated polyelectrolytes (CPEs) is reported as an ideal interfacial layer and CTLs in various PeLEDs and PeSCs devices.