Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region
Апстракт
The controlled and patterned reduction of graphene oxide offers a promising method to tune the electronic and optical properties of the material through a wide range. Using ab initio calculations in which the exact exchange energy from Hartree-Fock theory is combined with the exchange-correlation energy obtained from density functional theory (DFT), we studied the electronic, optical, and radiative recombination properties of reduced graphene oxide (rGO). Our model of rGO is based on epoxy functionalised graphene, within which small regions of pristine graphene are formed by reduction. We predict that the gap can be tuned from similar to 6.85 eV to similar to 0.25 eV in this manner and that the polarization selective absorption properties can be controlled by manipulating the symmetry of these graphene quantum dots. The optically active can therefore be tuned to ranges suitable for use either as the active medium or a transparent conducting oxide (TCO) in photovoltaic solar cells (PVSC...s).
Кључне речи:
Graphene quantum dots / Graphene oxide / Transparent Conducting OxidesИзвор:
2015Напомена:
- IEEE Photovoltaic Specialists Conference, IEEE 42nd Photovoltaic Specialist Conference (PVSC), Jun 14-19, 2015, New Orleans, LA
Колекције
Институција/група
VinčaTY - CONF AU - Lundie, Mark AU - Šljivančanin, Željko AU - Tomić, Stanko PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7094 AB - The controlled and patterned reduction of graphene oxide offers a promising method to tune the electronic and optical properties of the material through a wide range. Using ab initio calculations in which the exact exchange energy from Hartree-Fock theory is combined with the exchange-correlation energy obtained from density functional theory (DFT), we studied the electronic, optical, and radiative recombination properties of reduced graphene oxide (rGO). Our model of rGO is based on epoxy functionalised graphene, within which small regions of pristine graphene are formed by reduction. We predict that the gap can be tuned from similar to 6.85 eV to similar to 0.25 eV in this manner and that the polarization selective absorption properties can be controlled by manipulating the symmetry of these graphene quantum dots. The optically active can therefore be tuned to ranges suitable for use either as the active medium or a transparent conducting oxide (TCO) in photovoltaic solar cells (PVSCs). T1 - Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region UR - https://hdl.handle.net/21.15107/rcub_vinar_7094 ER -
@conference{ author = "Lundie, Mark and Šljivančanin, Željko and Tomić, Stanko", year = "2015", abstract = "The controlled and patterned reduction of graphene oxide offers a promising method to tune the electronic and optical properties of the material through a wide range. Using ab initio calculations in which the exact exchange energy from Hartree-Fock theory is combined with the exchange-correlation energy obtained from density functional theory (DFT), we studied the electronic, optical, and radiative recombination properties of reduced graphene oxide (rGO). Our model of rGO is based on epoxy functionalised graphene, within which small regions of pristine graphene are formed by reduction. We predict that the gap can be tuned from similar to 6.85 eV to similar to 0.25 eV in this manner and that the polarization selective absorption properties can be controlled by manipulating the symmetry of these graphene quantum dots. The optically active can therefore be tuned to ranges suitable for use either as the active medium or a transparent conducting oxide (TCO) in photovoltaic solar cells (PVSCs).", title = "Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region", url = "https://hdl.handle.net/21.15107/rcub_vinar_7094" }
Lundie, M., Šljivančanin, Ž.,& Tomić, S.. (2015). Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region. . https://hdl.handle.net/21.15107/rcub_vinar_7094
Lundie M, Šljivančanin Ž, Tomić S. Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region. 2015;. https://hdl.handle.net/21.15107/rcub_vinar_7094 .
Lundie, Mark, Šljivančanin, Željko, Tomić, Stanko, "Absorption characteristics of reduced graphene oxide: application to TCO and solar cells active region" (2015), https://hdl.handle.net/21.15107/rcub_vinar_7094 .