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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Enhanced reproducibility of planar perovskite solar cells by fullerene doping with silver nanoparticles

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Autor(es):
Higgins, Marissa [1] ; Ely, Fernando [2, 3] ; Nome, Renata C. [3] ; Nome, Rene A. [4] ; dos Santos, Diego P. [4] ; Choi, Hyunjoo [5] ; Nam, Seungjin [5] ; Quevedo-Lopez, Manuel [2, 1]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] Univ Texas Dallas, Dept Chem & Biochem, Richardson, TX 75080 - USA
[2] Univ Texas Dallas, Dept Mat Sci & Engn, Dallas, TX 75080 - USA
[3] CTI Renato Archer, IC Packaging Lab, Campinas - Brazil
[4] Univ Estadual Campinas, Chem Inst, Campinas, SP - Brazil
[5] Kookmin Univ, Dept Adv Mat Engn, Seoul 136702 - South Korea
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Journal of Applied Physics; v. 124, n. 6 AUG 14 2018.
Citações Web of Science: 0
Resumo

A small cross-section of silver nanoparticles (AgNPs) placed at the rear-part of the solar cell avoids the parasitic absorption of the nanoparticles which is the biggest barrier for plasmonic structures when acting as photocurrent enhancers. Herein, we demonstrate p-i-n planar perovskite solar cells with the structure ITO/PEDOT:PSS/MAPbI(3)/PCBM/Ni:Au, where the PCBM electron extraction layer (EEL) was intentionally modified with variable amounts of AgNPs. The addition of small amounts of AgNPs (e.g., 5 wt. %) into the PCBM improved the overall reproducibility and reliability of the solar cell fabrication process after optimization. Plasmonic simulations suggest that any plasmonic-optical effects are relatively small compared to sample absorbance due to perovskite alone. It has been concluded that plasmonic-electrical effects play a major role in averaged performance improvement. Therefore, the addition of small AgNPs in low concentration to the EEL layer accounts for higher J(sc), V-oc and FF as a result of a better perovskite coverage by the EEL and an improved charge carrier collection as evidenced by morphological and electrical analysis. Published by AIP Publishing. (AU)

Processo FAPESP: 15/14183-5 - Sistema de detecção de nêutrons baseado em compósitos de nanopartículas
Beneficiário:Fernando Ely
Linha de fomento: Bolsas no Exterior - Pesquisa
Processo FAPESP: 14/50632-6 - Sensores baseados em ressonância de plasmon e fibras ópticas microestruturadas
Beneficiário:Cristiano Monteiro de Barros Cordeiro
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 17/11986-5 - Divisão de Pesquisa 1 - portadores densos de energia
Beneficiário:Ana Flávia Nogueira
Linha de fomento: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia