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Published on: November 5, 2014
Paintable Carbon-Based Perovskite Solar Cells with Engineered Perovskite/Carbon Interface Using Carbon Nanotubes
Jaehoon Ryu1, Kisu Lee1, Juyoung Yun1
1World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University, 599 Gwanangno, Gwanakgu, Seoul, 151-742, South Korea.
This study introduces a novel carbon nanotube (CNT) dripping method to improve paintable carbon electrode perovskite solar cells (PSCs). This technique enhances interfacial contact, boosting performance and stability for efficient solar energy conversion.
Area of Science:
- Materials Science
- Renewable Energy
- Nanotechnology
Background:
- Paintable carbon electrode perovskite solar cells (PSCs) offer cost-effective fabrication and improved moisture stability.
- Direct printing of carbon paste onto perovskite layers can compromise interfacial quality, hindering device performance.
Purpose of the Study:
- To enhance the performance and interfacial contact of paintable carbon electrode PSCs.
- To address limitations in current fabrication methods for carbon-based PSCs.
Main Methods:
- A modified solvent dripping method was employed, utilizing chlorobenzene-dispersed carbon nanotubes (CNTs).
- CNTs were dripped onto the perovskite layer to infiltrate both the perovskite film and the carbon electrode.
Main Results:
- The CNT dripping method facilitated rapid hole transport between the perovskite and carbon layers.
- This resulted in improved open-circuit voltage (Voc) and fill factor (FF).
- The optimized devices achieved a power conversion efficiency of 13.57% with hysteresis-free performance.
Conclusions:
- The CNT dripping method effectively improves the perovskite/carbon interface in paintable carbon electrode PSCs.
- This technique offers a promising strategy for developing high-performance, stable, and cost-effective PSCs.
- The findings contribute to advancing the commercial viability of perovskite solar technology.
