Natural biomaterial sarcosine as an interfacial layer enables inverted organic solar cells to exhibit over 16.4% efficiency

Abstract

The natural biomaterial sarcosine as the electron transport layer (ETL) to modify ITO or ITO/ZnO was successfully introduced into the inverted OSCs with PM6:BTP-BO-4Cl as the active layers. The introduction...

Ag Nanowires Embedded ZnO for Semitransparent Organic Solar Cells with 13.76% Efficiency and 19.09% Average Visible Transmittance

“…The serious resistance ( R s ) and transfer resistance ( R tr ) can be extracted from the Nyquist plots and listed in Table . R s and R tr reduce dramatically after the modification of Ag NWs, which reveals that Ag NWs sufficiently reduce the resistance of the buffer layer and promote the carrier transport of the device . Furthermore, the effective carrier lifetime is estimated from the frequency-dependent imaginary parts of impedance.…”

“…R s and R tr reduce dramatically after the modification of Ag NWs, which reveals that Ag NWs sufficiently reduce the resistance of the buffer layer and promote the carrier transport of the device. 32 Furthermore, the effective carrier lifetime is estimated from the frequency-dependent imaginary parts of impedance. It reduces from 121.2 to 17.8 μs with the shift of the center frequency of the peak, confirming more efficient charge transport by ANZnO.…”

Improving the Efficiency of Organic Solar Cells with Methionine as Electron Transport Layer

“…The introduction of interface dipoles may increase the built-in potential of the device, which is conducive to charge transmission and collection. The performance of OSCs with methionine as their ETL has been improved to a greater extent than that of the OSCs with mixed solvent as ETL, indicating that the solute methionine in the methionine solution plays a major role in cathode interface modification [ 43 ]. A PCE of 14.25% was acquired in the OSCs with ZnO as the ETL, along with a J SC of 24.79 mA cm −2 , a V OC of 0.83 V, and a FF of 69.26%.…”

Organic–inorganic hybrid cathode interlayer materials for efficient organic solar cells

“…Furthermore, simple amino acids such as glycine and sarcosine or thiophenol, 2-phenylethylmercaptan (PET), can be used to passivate ZnO providing higher performing non-fullerene based OSCs. [93][94][95] Specically, device performance and stability can be simultaneously improved by treating the ZnO lms with PET through surface -OH group regulation. Consequently, a high T 80 life time over 4000 h has been successfully realized.…”