Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells
The effect of an amorphous TiOx interlayer on layered graphene/quantum dots photochemical cells has been investigated. The addition of the TiOx interlayer eliminates the decay of photocurrent in the initial seconds after light illumination and significantly increases the slope of the steady-state ph...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Chemical Society
2011
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/41348 |
| _version_ | 1848756120636620800 |
|---|---|
| author | Yang, H. Guo, C. Guai, G. Song, Q. Jiang, San Ping Li, C. |
| author_facet | Yang, H. Guo, C. Guai, G. Song, Q. Jiang, San Ping Li, C. |
| author_sort | Yang, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The effect of an amorphous TiOx interlayer on layered graphene/quantum dots photochemical cells has been investigated. The addition of the TiOx interlayer eliminates the decay of photocurrent in the initial seconds after light illumination and significantly increases the slope of the steady-state photocurrent versus the light intensity. The open-circuit voltage decay measurements further illustrate a longer electron lifetime when an amorphous TiOx interlayer is applied. Consequently, the photocurrent and photovoltage of the photovoltaic cell with a TiOx interlayer are greatly increased. This work emonstrates that the graphene/amorphous TiOx composite structure effectively inhibits charge recombination while enhancing charge transfer, providing a promising scaffold for quantum dots and dye-sensitized photovoltaic cells. |
| first_indexed | 2025-11-14T09:07:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-41348 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:07:09Z |
| publishDate | 2011 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-413482017-02-28T01:37:52Z Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells Yang, H. Guo, C. Guai, G. Song, Q. Jiang, San Ping Li, C. quantum dots graphene recombination photochemistry photovoltaic cells The effect of an amorphous TiOx interlayer on layered graphene/quantum dots photochemical cells has been investigated. The addition of the TiOx interlayer eliminates the decay of photocurrent in the initial seconds after light illumination and significantly increases the slope of the steady-state photocurrent versus the light intensity. The open-circuit voltage decay measurements further illustrate a longer electron lifetime when an amorphous TiOx interlayer is applied. Consequently, the photocurrent and photovoltage of the photovoltaic cell with a TiOx interlayer are greatly increased. This work emonstrates that the graphene/amorphous TiOx composite structure effectively inhibits charge recombination while enhancing charge transfer, providing a promising scaffold for quantum dots and dye-sensitized photovoltaic cells. 2011 Journal Article http://hdl.handle.net/20.500.11937/41348 American Chemical Society restricted |
| spellingShingle | quantum dots graphene recombination photochemistry photovoltaic cells Yang, H. Guo, C. Guai, G. Song, Q. Jiang, San Ping Li, C. Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title | Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title_full | Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title_fullStr | Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title_full_unstemmed | Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title_short | Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells |
| title_sort | reduction of charge recombination by an amorphous titanium oxide interlayer in layered graphene/quantum dots photochemical cells |
| topic | quantum dots graphene recombination photochemistry photovoltaic cells |
| url | http://hdl.handle.net/20.500.11937/41348 |