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Updated: Jun 23, 2026

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells
Published on: April 25, 2018
Flexible photovoltaic cells fabricated utilizing ZnO quantum dot/carbon nanotube heterojunctions
Fushan Li1, Dong Ick Son, Sung Hwan Cho
1National Research Laboratory for Nano Quantum Electronics, Division of Electronics and Computer Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea.
Abstract:
In situ growth of ZnO quantum dots (QDs) on the surface of multi-walled carbon nanotubes (MWCNTs) was presented, and their application in photovoltaic cells by using flexible polyethylene terephthalate substrates was demonstrated. High-resolution transmission electron microscopy images revealed the conjugation of ZnO QDs with MWCNTs. Photoluminescence spectra indicated that the charge transfer efficiency at ZnO QD-MWCNT heterojunctions was above 90%, as confirmed by time-resolved photoluminescence measurements. Current-voltage measurements on the flexible devices fabricated utilizing ZnO QD-MWCNT heterojunctions showed the robust nature of the ZnO QD-MWCNT-based photovoltaic cells and their potential applications as the power source for flexible hand-held consumer electronics.

