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Large AuAg alloy nanoparticles synthesized in organic media using a one-pot reaction: their applications for high-performance bulk heterojunction solar cells

Abstract

A one-pot synthesis of large size and high quality AuAg alloy nanoparticles (NPs) with well controlled compositions via hot organic media is demonstrated. Amid the synthesis, complexation between trioctylphosphine (TOP) and metal precursors is found, which slows down the rate of nucleation and leads to the growth of large-size AuAg nanoalloys. The wavelength and relative intensities of the resulting plasmon bands are readily fine-tuned during the synthetic process using different Au/Ag precursors molar ratios. In the polymer solar cells, a key step in achieving high efficiency is the utilization of 1% Au{sub 11}Ag{sub 89} alloy NPs embedded in the active layer to promote the power conversion efficiency (PCE) up to 4.73%, which outperforms the reference device based on the control standard device of poly(3-hexylthiophene) (P3HT):phenyl-C{sub 61}-butyric acid methyl ester (PC{sub 61}BM) under identical conditions. Corresponding increases in short-circuit current density (J{sub sc}), open-circuit voltage (V{sub oc}), fill factor (FF), and incident photon-to-current efficiency (IPCE) enable 31% PCE improvement due to the enhancement of the light-trapping and the improvement of charge transport in the active layer. The findings advance the fundamental understanding and point to the superiority of Au{sub 11}Ag{sub 89} nanoalloys as a promising metallic additive over Au, Ag, and  More>>
Authors:
Chen, Hsieh-Chih; Chou, Shang-Wei; Chen, Chun-hsien; Chou, Pi-Tai; [1]  Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)]; Tseng, Wei-Hsuan; [2]  Chen, I-Wen P; Liu, Chi-Chang; Liu, Chun; Liu, Chien-Liang; [1]  Wu, Chih-I; [3]  Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)]
  1. Department of Chemistry, National Taiwan University, Taipei (China)
  2. Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)
  3. Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)
Publication Date:
Oct 10, 2012
Product Type:
Journal Article
Resource Relation:
Journal Name: Advanced Functional Materials; Journal Volume: 22; Journal Issue: 19; Other Information: With 7 figs., 1 tab., 56 refs.
Subject:
14 SOLAR ENERGY; GOLD ALLOYS; SILVER BASE ALLOYS; HETEROJUNCTIONS; NANOSTRUCTURES; PERFORMANCE; SYNTHESIS; POLYMERS; FILL FACTORS; CHARGE TRANSPORT; ORGANIC SOLAR CELLS; EFFICIENCY
OSTI ID:
22006198
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1616-301X; CODEN: AFMDC6; TRN: DE12GB921
Availability:
Available from: http://dx.doi.org/10.1002/adfm.201200218
Submitting Site:
DE
Size:
page(s) 3975-3984
Announcement Date:
Dec 27, 2012

Citation Formats

Chen, Hsieh-Chih, Chou, Shang-Wei, Chen, Chun-hsien, Chou, Pi-Tai, Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)], Tseng, Wei-Hsuan, Chen, I-Wen P, Liu, Chi-Chang, Liu, Chun, Liu, Chien-Liang, Wu, Chih-I, and Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)]. Large AuAg alloy nanoparticles synthesized in organic media using a one-pot reaction: their applications for high-performance bulk heterojunction solar cells. Germany: N. p., 2012. Web. doi:10.1002/ADFM.201200218.
Chen, Hsieh-Chih, Chou, Shang-Wei, Chen, Chun-hsien, Chou, Pi-Tai, Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)], Tseng, Wei-Hsuan, Chen, I-Wen P, Liu, Chi-Chang, Liu, Chun, Liu, Chien-Liang, Wu, Chih-I, & Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)]. Large AuAg alloy nanoparticles synthesized in organic media using a one-pot reaction: their applications for high-performance bulk heterojunction solar cells. Germany. https://doi.org/10.1002/ADFM.201200218
Chen, Hsieh-Chih, Chou, Shang-Wei, Chen, Chun-hsien, Chou, Pi-Tai, Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)], Tseng, Wei-Hsuan, Chen, I-Wen P, Liu, Chi-Chang, Liu, Chun, Liu, Chien-Liang, Wu, Chih-I, and Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)]. 2012. "Large AuAg alloy nanoparticles synthesized in organic media using a one-pot reaction: their applications for high-performance bulk heterojunction solar cells." Germany. https://doi.org/10.1002/ADFM.201200218.
@misc{etde_22006198,
title = {Large AuAg alloy nanoparticles synthesized in organic media using a one-pot reaction: their applications for high-performance bulk heterojunction solar cells}
author = {Chen, Hsieh-Chih, Chou, Shang-Wei, Chen, Chun-hsien, Chou, Pi-Tai, Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei (China)], Tseng, Wei-Hsuan, Chen, I-Wen P, Liu, Chi-Chang, Liu, Chun, Liu, Chien-Liang, Wu, Chih-I, and Department of Electrical Engineering and Graduate Institute of Electrooptical Engineering, National Taiwan University, Taipei (China)]}
abstractNote = {A one-pot synthesis of large size and high quality AuAg alloy nanoparticles (NPs) with well controlled compositions via hot organic media is demonstrated. Amid the synthesis, complexation between trioctylphosphine (TOP) and metal precursors is found, which slows down the rate of nucleation and leads to the growth of large-size AuAg nanoalloys. The wavelength and relative intensities of the resulting plasmon bands are readily fine-tuned during the synthetic process using different Au/Ag precursors molar ratios. In the polymer solar cells, a key step in achieving high efficiency is the utilization of 1% Au{sub 11}Ag{sub 89} alloy NPs embedded in the active layer to promote the power conversion efficiency (PCE) up to 4.73%, which outperforms the reference device based on the control standard device of poly(3-hexylthiophene) (P3HT):phenyl-C{sub 61}-butyric acid methyl ester (PC{sub 61}BM) under identical conditions. Corresponding increases in short-circuit current density (J{sub sc}), open-circuit voltage (V{sub oc}), fill factor (FF), and incident photon-to-current efficiency (IPCE) enable 31% PCE improvement due to the enhancement of the light-trapping and the improvement of charge transport in the active layer. The findings advance the fundamental understanding and point to the superiority of Au{sub 11}Ag{sub 89} nanoalloys as a promising metallic additive over Au, Ag, and Au{sub 28}Ag{sub 72} alloy NPs to boost the solar cell performance. (Copyright copyright 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)}
doi = {10.1002/ADFM.201200218}
journal = []
issue = {19}
volume = {22}
journal type = {AC}
place = {Germany}
year = {2012}
month = {Oct}
}