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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[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
Total Affiliations: 5
Document type: Journal article
Source: Journal of Applied Physics; v. 124, n. 6 AUG 14 2018.
Web of Science Citations: 3
Abstract

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)

FAPESP's process: 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country
Grantee:Ana Flávia Nogueira
Support Opportunities: Research Grants - Research Centers in Engineering Program
FAPESP's process: 14/50632-6 - Surface-plasmon resonance sensors based on microstructured optical fiber
Grantee:Cristiano Monteiro de Barros Cordeiro
Support Opportunities: Regular Research Grants
FAPESP's process: 15/14183-5 - Neutron detection system based on nanoparticle composites
Grantee:Fernando Ely
Support Opportunities: Scholarships abroad - Research