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RISS 인기검색어
- 검색키워드
- 저자 : Mat Teridi, Mohd Asri (검색결과 2 건)
- 무료
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Mat Teridi, Mohd Asri,Sookhakian, Mehran,Basirun, Wan Jefrey,Zakaria, R.,Schneider, Fabio Kurt,da Silva, Wilson Jose,Kim, Jaeyeon,Lee, Seung Joo,Kim, Hyeong Pil,Mohd Yusoff, Abd. Rashid bin,Jang, Jin The Royal Society of Chemistry 2015 Nanoscale Vol.7 No.16
<▼1><▼1><P>High performance organic devices were successfully demonstrated with the presence of highly ordered nanoimprinted Au nanodisks.</P></▼1><▼2><P>High performance organic devices including polymer solar cells (PSCs) and light emitting diodes (PLEDs) were successfully demonstrated with the presence of highly ordered nanoimprinted Au nanodisks (Au NDs) in their solution-processed active/emissive layers, respectively. PSCs and PLEDs were fabricated using a low bandgap polymer and acceptor, nitrogen doped multiwalled carbon nanotubes poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-<I>b</I>:4,5-<I>b</I>′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-<I>b</I>]-thiophenediyl] (n-MWCNTs:PTB7), and [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) and (4,4-<I>N</I>,<I>N</I>-dicarbazole) biphenyl (CBP) doped with tris(2-phenylpyridine) iridium(iii) (Ir(ppy)3) as active/emissive layers, respectively. We synthesized nitrogen doped graphene and used it as anodic buffer layer in both devices. The localized surface plasmon resonance (LSPR) effect from Au NDs clearly contributed to the increase in light absorption/emission in the active layers from electromagnetic field enhancement, which originated from the excited LSPR in PSCs and PLEDs. In addition to the high density of LSPR and strong exciton-SP coupling, the electroluminescent (EL) enhancement is ascribed to enhanced spontaneous emission rates. This is due to the plasmonic near-field effect induced by Au NDs. The PSCs and PLEDs exhibited 14.98% (8.08% to 9.29%) under one sun of simulated air mass 1.5 global (AM1.5G) illumination (100 mW cm<SUP>−2</SUP>) and 19.18% (8.24 to 9.82 lm W<SUP>−1</SUP>) enhancement in the power conversion efficiencies (PCEs) compared to the control devices without Au NDs.</P></▼2></▼1>
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Null current hysteresis for acetylacetonate electron extraction layer in perovskite solar cells
Mohd Yusoff, Abd. Rashid bin,Mat Teridi, Mohd Asri,Jang, Jin The Royal Society of Chemistry 2016 Nanoscale Vol.8 No.12
<P>Solution processed zirconium acetylacetonate (Zr(acac)) is successfully employed as an electron extraction layer, replacing conventional titanium oxide, in planar CH3NH3PbI3 perovskite solar cells. The as-prepared Zr(acac) film possesses high transparency, high conductivity, a smooth morphology, high wettability, compatibility with PbI2 DMF solution, and an energy level matching that of CH3NH3PbI3 perovskite material. An average power conversion efficiency of about 11.93%, along with a high fill factor of 74.36%, an open circuit voltage of 1.03 V, and a short-circuit current density of 15.58 mA cm(-2) is achieved. The overall performance of the devices is slight better than that of cells using ruthenium acetylacetonate (Ru(acac)). The differences between solar cells with different electron extraction layers in charge recombination, charge transport and transfer and lifetime are further explored and it is demonstrate that Zr(acac) is a more effective and promising electron extraction layer. This work provides a simple, and cost effective route for the preparation of an effective hole extraction layer.</P>
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