An integrated antireflection design using nanotexture and high-refractive-index glass for organic photovoltaics / Shigeru Kubota in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 5 (09/2017) . - p. 1209-1224 Titre : An integrated antireflection design using nanotexture and high-refractive-index glass for organic photovoltaics Type de document : texte imprimé Auteurs : Shigeru Kubota, Auteur ; Yoshiki Harada, Auteur ; Takenari Sudo, Auteur ; Kensaku Kanomata, Auteur ; Bashir Ahmmad, Auteur ; Jun Mizuno, Auteur ; Fumihiko Hirose, Auteur Année de publication : 2017 Article en page(s) : p. 1209-1224 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Photopiles Revêtement antireflet Verre Index. décimale : 667.9 Revêtements et enduits Résumé : We propose a new antireflection (AR) design for organic photovoltaics (OPVs) to achieve broadband and omnidirectional enhancement of photocurrent. In the proposed design, a hybrid AR structure, which combines moth eye texturing and two-layer interference coating, is integrated with a glass substrate having a high refractive index (n). Using the optical simulation for OPV cells, we compare the performance of various AR configurations upon changing the refractive index of the glass substrate. We show that the short-circuit current density (JSC) is decreased by using the high-n glass substrate without AR coating, whereas JSC is significantly increased by applying the high-n glass substrate with the hybrid AR structure, suggesting an importance of the integrated design. In addition, we demonstrate that the proposed AR configuration is quite effective to attain broad angle performance and is robust against the variations in geometric features of moth eye texture. Finally, the spectral dependence of photocurrent generation is experimentally measured for the verification of the effectiveness of the integrated AR design. These results provide a practical and efficient AR technique that can further expand the potential of OPVs as energy supply devices. Note de contenu : - EXPERIMENTAL : Optical modeling - Effective medium approximation - Characteristic matrix-based analysis - Incident light condition - Device fabrication and testing - RESULTS AND DISCUSSION : Effectiveness of the AR design with hybrid ARS and high-n glass substrate - Wide-angle AR performance - Robustness against variations in geometric features of moth eye structure - Photocurrent loss by the absorption in glass substrate - Experimental testing DOI : 10.1007/s11998-017-9914-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9914-9.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29154 [article]

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