Combining Modulated Techniques for the Analysis of Photosensitive Devices
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Otros documentos de la autoría: Alvarez, Agustin; Ravishankar, Sandheep; Fabregat-Santiago, Francisco
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Título
Combining Modulated Techniques for the Analysis of Photosensitive DevicesFecha de publicación
2021-09-03Editor
Wiley-VCH GmbHISSN
2366-9608Cita bibliográfica
ALVAREZ, Agustin O.; RAVISHANKAR, Sandheep; FABREGAT‐SANTIAGO, Francisco. Combining Modulated Techniques for the Analysis of Photosensitive Devices. Small Methods, 2021, 2100661.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Small-perturbation techniques such as impedance spectroscopy (IS), inten-sity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) are useful tools to characterize and ... [+]
Small-perturbation techniques such as impedance spectroscopy (IS), inten-sity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) are useful tools to characterize and model photovoltaic and photoelectrochemical devices. While the analysis of the impedance spectra is generally carried out using an equivalent circuit, the intensity-modulated spectroscopies are often analyzed through the meas-ured characteristic response times. This makes the correlation between the two methods of analysis generally unclear. In this work, by taking into consideration the absorptance and separation eciency, a unified theoretical framework and a procedure to combine the spectral analysis of the three techniques are proposed. Such a joint analysis of IS, IMPS, and IMVS spectra greatly reduces the sample space of possible equivalent circuits to model the device and allows obtaining parameters with high reliability. This theo-retical approach is applied in the characterization of a silicon photodiode to demonstrate the validity of this methodology, which shows great potential to improve the quality of analysis of spectra obtained from frequency domain small-perturbation methods. [-]
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Small Methods (2021)Entidad financiadora
European Union | Ministerio de Economía y Competitividad (MINECO) | Generalitat Valenciana | Helmholtz association
Código del proyecto o subvención
info:eu-repo/grantAgreement/EC/H2020/764787 | ENE2017-85087-C3-1-R | PROMETEO/2020/028
Título del proyecto o subvención
European Union's Horizon 2020 MSCA Innovative Training Network | Project PEROSEED
Derechos de acceso
info:eu-repo/semantics/openAccess
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