High-Performance Semitransparent Organic Photovoltaics Featuring a Surface Phase-Matched Transmission-Enhancing Ag/ITO Electrode

Abstract

In this study, we designed a surface phase-matched transmission enhancement top electrode–Ag/indium tin oxide (ITO) structure for highly efficient and aesthetic semitransparent organic photovoltaics (ST-OPVs). The purposed highly transparent back electrodes (Ag/ITO) could selectively decrease visible reflection and increase transparency accordingly. By altering the thicknesses of the Ag and ITO layers, we could control the transmittance curve and increase the transparency of the ST-OPV devices. Devices based on PTB7-Th:IEICO-4F and PM6:Y6:PC71BM displayed outstanding performance (8.1 and 10.2%, respectively) with high photopic-weighted visible light transmittance (36.2 and 28.6%, respectively). The outstanding visible and near-infrared light harvesting of PM6:Y6:PC71BM further allowed a new application: double-sided energy harvesting from solar and indoor illumination. The simple optical design of a top electrode displaying high transparency/conductivity has a wide range of potential applications in, for example, greenhouse photovoltaics, tandem cells, and portable devices.

Stabilized Preparation of Fiber-Shaped Perovskite Solar Cells with Ti and Graphene Substrates

“…The integrated J sc obtained from the EQE curve was 6.65 mA/cm 2 , which is close to the J – V measurement. A decrease was occurred at EQE curve in the range of short wavelength (400–500 nm) and we think it is related to the absorption of short wavelength light by Ag layer . The maximum steady-state output and stabilized PCE of the device were measured to demonstrate the stable output capacity.…”

Light Managements and Transparent Electrodes for Semitransparent Organic and Perovskite Solar Cells

“…Reproduced with permission. [ 25 ] Copyright 2020, American Chemical Society. d) Device architecture of ST device and interaction between PFN and silver film.…”

“…The PCEs of the devices based on PTB7‐Th:IEICO‐4F and PM6:Y6:PC 71 BM were 8.1% (visible light transmittance (VLT) = 36.2%) and 10.2% (VLT = 28.6%), respectively (Figure 3c). [ 25 ] Except for inorganic interface layers, Zhang and Hou et al founded that polymer poly[(9,9‐bis(3′‐( N , N ‐dimethylamino)propyl)‐2,7‐fluorene)‐alt‐2,7‐(9,9‐dioctylfluorene)] (PFN) was another effective optical spacer for tuning the transmittance spectra of silver films and device with PTB7:PC 70 BM:ICBA shows a PCE of 5.02% with an AVT of 28%. The efficiency was 35% larger than that of ITO‐based device, which could be attributed to the more reasonable field distribution in active layer region and silver film morphology optimization by attaching PFN seeding layer (Figure 3d).…”

A 1D:2D structured AgNW:MXene composite transparent electrode with high mechanical robustness for flexible photovoltaics

“…15 Currently, indium tin oxide (ITO) is the most reported transparent electrode material among rigid photoelectric devices by virtue of its excellent conductivity and transparency. [16][17][18][19] However, the application of ITO in flexible devices is limited by its inherent brittleness. 20,21 Hence, it is urgent to seek a high-performance ITO-free FTE for allowing the development of flexible photovoltaic devices in the future.…”