Combining Modulated Techniques for the Analysis of Photosensitive Devices
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Altres documents de l'autoria: Alvarez, Agustin; Ravishankar, Sandheep; Fabregat-Santiago, Francisco
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Títol
Combining Modulated Techniques for the Analysis of Photosensitive DevicesData de publicació
2021-09-03Editor
Wiley-VCH GmbHISSN
2366-9608Cita bibliogràfica
ALVAREZ, Agustin O.; RAVISHANKAR, Sandheep; FABREGAT‐SANTIAGO, Francisco. Combining Modulated Techniques for the Analysis of Photosensitive Devices. Small Methods, 2021, 2100661.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
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. [-]
Publicat a
Small Methods (2021)Entitat finançadora
European Union | Ministerio de Economía y Competitividad (MINECO) | Generalitat Valenciana | Helmholtz association
Codi del projecte o subvenció
info:eu-repo/grantAgreement/EC/H2020/764787 | ENE2017-85087-C3-1-R | PROMETEO/2020/028
Títol del projecte o subvenció
European Union's Horizon 2020 MSCA Innovative Training Network | Project PEROSEED
Drets d'accés
info:eu-repo/semantics/openAccess
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- INAM_Articles [528]
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