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Updated: Aug 11, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
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Bifunctional Cellulose Interlayer Enabled Efficient Perovskite Solar Cells with Simultaneously Enhanced Efficiency

Zilong Zhang1,2,3,4, Can Wang2,3,4,5, Feng Li2,3,4

  • 1College of Material Engineering, National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350108, P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|February 7, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel cellulose derivative for perovskite solar cells (PSCs). This material enhances charge transport and stability, leading to a 23.02% power conversion efficiency (PCE) in PSCs.

Keywords:
bifunctional cellulose derivativecharge transportdefect passivationinterfacial layerperovskite solar cellstability

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Area of Science:

  • Materials Science
  • Renewable Energy

Background:

  • Interfacial engineering is crucial for high-performance perovskite solar cells (PSCs).
  • Developing efficient, cost-effective, and sustainable interfacial materials is an ongoing challenge.

Purpose of the Study:

  • To present a novel bifunctional cellulose derivative for PSCs.
  • To investigate its potential as an efficient and green interfacial layer.

Main Methods:

  • Synthesized a bifunctional cellulose derivative: 6-O-[4-(9H-carbazol-9-yl)butyl]-2,3-di-O-methyl cellulose (C-Cz).
  • Incorporated C-Cz as an interfacial modifier in PSCs.
  • Evaluated device performance and stability.

Main Results:

  • The C-Cz material exhibited excellent energy level alignment, thermal stability, and strong interactions with the perovskite surface.
  • PSCs utilizing C-Cz achieved a power conversion efficiency (PCE) of 23.02%.
  • Enhanced long-term stability of the perovskite solar cells was observed.

Conclusions:

  • Bifunctional cellulose materials are advantageous for interfacial layers in PSCs.
  • C-Cz demonstrates effective charge transport and passivation capabilities.
  • This approach leads to highly efficient and stable perovskite solar cells.