High Efficiency and Long Life Hybrid Photovoltaic Research for Space Applications
Abstract
We have developed a tree-like nanostructured photovoltaic device based on the polymer poly(3-hexylthiophene)(P3HT)/metal oxide hybrid materials by solution processes at low temperature. An array of large ZnO nanorods with a larger size of 50 nm in diameter and 150 nm in length are grown to act as tree trunks for efficient charge collection. Small TiO2 nanorods with a size of 5 nm in diameter and 20 nm in length are incorporated to act as tree branches for facilitating charge separation and transport. The device based on the tree-like nanostructure exhibits a short circuit current density >2 mA/sq cm under A.M. 1.5 illumination, showing over seven times increase compared to that without the incorporation of TiO2 nanorods. Efficient charge separation and transport in the tree-like nanostructured photovoltaic device has further been demonstrated by time-resolved photoluminescence spectroscopy and transient photocurrent measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 05, 2007
- Accession Number
- ADA489592
Entities
People
- Wei-fang Su
Organizations
- National Taiwan University