Related Experiment Video
Updated: Nov 17, 2025
Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
High efficiency organic-Si hybrid solar cells with a one-dimensional CdS interlayer
Zhangbo Lu1, Guozhi Hou1, Yu Zhu1
1National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering/Collaborative Innovation Center of Advanced Microstructures/Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Nanjing University, Nanjing, 210093, P. R. China. junxu@nju.edu.cn.
High-efficiency solar cells benefit from carrier-selective passivating contacts. This study demonstrates a novel CdS nanowire/TiN contact for silicon solar cells, achieving over 14.0% power conversion efficiency.
Area of Science:
- Materials Science
- Photovoltaics
- Nanotechnology
Background:
- Carrier-selective passivating contacts are crucial for high-efficiency solar cells.
- Optimizing the interface between silicon and rear contacts is key for efficient electron extraction.
Purpose of the Study:
- To investigate the performance of a novel one-dimensional nanostructured Cadmium Sulfide (CdS) and Titanium Nitride (TiN) contact for n-type Silicon (n-Si) solar cells.
- To enhance electron extraction and transmission through an optimized energy level alignment.
Main Methods:
- Fabrication of a CdS nanowire interlayer combined with quasi-metallic TiN.
- Integration of the CdS NW/TiN/Al contact as an electron selective passivating layer.
- Characterization of the contact performance and solar cell efficiency.
Main Results:
- The CdS nanowire/TiN contact demonstrated excellent performance with n-Si.
- The CdS nanowire interlayer facilitated improved electron extraction and transmission.
- Organic/Si solar cells achieved a power conversion efficiency exceeding 14.0%.
Conclusions:
- The CdS NW/TiN/Al electron selective passivating contact is a promising technique for high-performance solar cells.
- This approach offers a pathway towards low-cost and efficient photovoltaic devices.
