Progress and prospects of the morphology of non-fullerene acceptor based high-efficiency organic solar cells

Abstract

With the development of non-fullerene acceptors (NFAs), the power conversion efficiency (PCE) of organic solar cells (OSCs) has been continuously improved and has exceeded 18%. A critical step to realize...

Global Maximum Power Point Tracking of Solar Photovoltaic Strings under Partial Shading Conditions Using Cat Swarm Optimization Technique

“…W/m 2 The second shading pattern used in this work is 1000 W/m 2 , 1000 W/m 2 , 500 W/m 2 and 500 W/m 2 . The (P-V) and (P-I) curves for the second shading pattern condition are shown in Figure 7.…”

“…Peng et al [1] investigated the dependence of molecular packing, the phase separation and mechanical properties on the performance of ternary solar cells, by combining the effects of scattering and microscopy characterizations. Zhu et al [2] reviewed the important morphological characteristics of an organic solar cell in their study. They obtained useful information regarding morphology optimization of NFA related OSCs, which can assist in solving the 2 of 20 morphological problems associated with the novel materials to achieve better performance.…”

Molecular optimization of incorporating pyran fused acceptor–donor–acceptor type acceptors enables over 15% efficiency in organic solar cells

“…Note that this is above their intrinsic merits of solution-processing, light weight, semi-transparency, flexibility and large-scale roll-to-roll production. 1–17 A typical OSC device usually employs an electron donor and acceptor blend as the light active layer, which plays a dominant role in the photovoltaic performance of OSCs. 18–31 Recently reported high-performance acceptor–donor–acceptor (A–D–A) type non-fullerene acceptors (NFAs) usually possess strong absorption in the near-infrared region and favorable molecular stacking, thereby generating a systematically enhanced photocurrent and voltage output.…”

Theoretical design and characterization of new terpolymer donors based on PTB7Ir for high-efficiency triplet-material-based organic photovoltaics

“…Organic photovoltaics (OPVs) have achieved impressive advances in their low-cost fabrication, large-area production, and exible device structure. [1][2][3][4][5] To date, favorable power conversion efficiencies (PCEs) of over 18% have been obtained, [6][7][8][9] which make the industrialization possible. The exploration of high-efficiency photovoltaic materials in OPVs has been regarded as one of the signicant challenges for improving the PCE.…”