Related Experiment Video
Updated: Sep 4, 2025
11:06
Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
Published on: July 8, 2016
10.6K
Fabrication of High-Performance Solar Cells and X-ray Detectors Using MoX2@CNT Nanocomposite-Tuned Perovskite Layers
Hailiang Liu1,2, Sajjad Hussain3,4, Zeesham Abbas3,4
1Department of Electronics and Electrical Engineering, Dankook University, Yongin 16890, Korea.
ACS Applied Materials & Interfaces
|July 14, 2022
Summary
This study enhances perovskite solar cells and X-ray detectors using molybdenum dichalcogenide (MoX2) and carbon nanotube (CNT) nanocomposites. MoTe2@CNT achieved 12.57% solar cell efficiency and improved X-ray detector performance.
Area of Science:
- Materials Science
- Nanotechnology
- Solid-State Physics
Background:
- Perovskite-based devices require optimized interfaces for high performance.
- Modifying transport layers or the perovskite layer is key to improving power conversion efficiencies (PCEs).
- Two-dimensional (2D) materials like carbon nanotubes (CNTs) and transition-metal dichalcogenides (TMDs) can tune electronic properties.
Purpose of the Study:
- To investigate the use of molybdenum dichalcogenide (MoX2) stretched CNT nanocomposites to enhance perovskite solar cells and X-ray detectors.
- To improve the electronic and optical properties of perovskite devices through the integration of 2D nanocomposites.
Main Methods:
- Fabrication of nanocomposites using molybdenum dichalcogenides (MoS2, MoSe2, MoTe2) and CNTs.
- Embedding these nanocomposites into the hole transport layer (HTL) or perovskite layer of devices.
- Characterization of device performance, including solar cell efficiency and X-ray detector metrics.
- Utilizing Density Functional Theory (DFT) approximations to analyze electronic and optical properties.
Main Results:
- A solar cell efficiency of 12.57% was achieved using MoTe2@CNT nanocomposites in the active layer.
- X-ray detectors with MoTe2@CNT-modulated active layers showed improved characteristics: 13.32 μA/cm2 (CCD-DCD), 3.99 mA/Gy·cm2 (sensitivity), 4.81 × 10-4 cm2/V·s (mobility), and 2.13 × 1015 cm2/V·s (trap density).
- DFT calculations confirmed enhanced electronic, optical, and energy band structures in MoX2@CNT-doped perovskites.
Conclusions:
- MoX2@CNT nanocomposites are effective in enhancing the performance of perovskite-based solar cells and X-ray detectors.
- The integration of these 2D nanocomposites offers a promising pathway for developing highly efficient semiconductor devices.
- This research highlights the potential of tailored 2D material integration for advanced optoelectronic applications.
