Although the power conversion efficiencies (PCEs) of bulk heterojunction (BHJ) organic solar cells (OSCs) continue increasing toward the 20% milestone, important factors for industrial application are mostly neglected, such as photostability and cost potential. Single-component OSCs (SCOSCs) employing materials with chemically bonded donor and acceptor moieties successfully overcome the immiscibility between the donor and the acceptor as well as the resultant self-aggregation under external stress. To inspire a broader interest, the industrial figure of merit (i-FoM) of BHJ OSCs and the corresponding SCOSCs is calculated and analyzed, which includes PCE, photostability, and synthetic complexity (SC) index. Despite having a slightly more complex synthesis, all SCOSCs exhibit increased i-FoM values compared with the corresponding BHJ OSCs, and with the increase in efficiency, SCOSCs possess further potential for a higher i-FoM value. With the excellent photostability of nearly all investigated single-component semiconductors, SCOSCs are coming into the focus of attention for industrial utilization.

尽管体异质结 (BHJ) 有机太阳能电池 (OSC) 的功率转换效率 (PCE) 继续向 20% 的里程碑增加，但工业应用的重要因素大多被忽视，例如光稳定性和成本潜力。采用具有化学键合供体和受体部分的材料的单组分 OSCs (SCOSCs) 成功地克服了供体和受体之间的不混溶性以及在外部应力下产生的自聚集。为了激发更广泛的兴趣，计算和分析了 BHJ OSC 和相应 SCOSC 的工业品质因数 (i-FoM)，包括 PCE、光稳定性和合成复杂性 (SC) 指数。尽管合成稍微复杂一些，但与相应的 BHJ OSC 相比，所有 SCOSC 都表现出增加的 i-FoM 值，随着效率的提高，SCOSC 具有更高 i-FoM 值的进一步潜力。由于几乎所有研究过的单组分半导体都具有出色的光稳定性，SCOSC 正成为工业应用关注的焦点。