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Updated: Jan 5, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
Published on: March 2, 2021
Black Phosphorous Quantum Dots Sandwiched Organic Solar Cells
Yifan Wang1, Jie Li1, Tengfei Li2
1College of Materials Science and Engineering, Institute of Hybrid Materials, Qingdao University, Qingdao, 266071, P. R. China.
Abstract:
Black phosphorous quantum dots (BPQDs) possess ambipolar charge transport, high mobility, and a tunable direct bandgap. Here, liquid-exfoliated BPQDs are used as interlayers to modify both the electron transport layer and hole transport layer in organic solar cells (OSCs). The incorporation of BPQDs is beneficial to the formation of a cascade band structure and electron/hole transfer and extraction. The power conversion efficiency of the BPQDs-incorporated OSC based on PTB7-Th:FOIC blend is enhanced from 11.8% to 13.1%. In addition, power conversion efficiency enhancement is also achieved for other nonfullerene and fullerene-based devices, demonstrating the universality of this interlayer methodology.
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