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金纳米四面体增强有机太阳电池光吸收及光伏性能研究

李雪 王亮 熊建桥 邵秋萍 蒋荣 陈淑芬

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金纳米四面体增强有机太阳电池光吸收及光伏性能研究

李雪, 王亮, 熊建桥, 邵秋萍, 蒋荣, 陈淑芬

Enhanced light absorption and device performances of organic photovoltaic devices with Au tetrahedra nanoparticles

Li Xue, Wang Liang, Xiong Jian-Qiao, Shao Qiu-Ping, Jiang Rong, Chen Shu-Fen
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  • 为增强有机太阳能电池的光利用率,提高能量转换效率,本文合成了金四面体形状的纳米粒子,并用聚苯乙烯磺酸钠(PSS)包裹形成了核壳结构的金纳米四面体(Au@PSS tetrahedra NPs).将其掺杂到有机太阳能电池空穴提取层与活性层的界面处,利用表面等离子体共振效应来增强活性层对光的吸收,从而提高有机太阳能电池的能量转换效率.研究了掺杂浓度和PSS包裹厚度对电池性能的影响.结果表明:掺杂浓度为6%时,器件性能最佳,能量转换效率达到3.08%;PSS壳层厚度优化为2.5 nm时,转换效率达到3.65%,较标准电池提升了22.9%.电池性能的改善主要源于金四面体纳米粒子的共振吸收峰位于给体材料吸收谱范围内,纳米粒子的共振促进了给体的吸收,同时PSS壳层的引入促进了激子的解离和电荷的转移,上述因素的改善提升了电池的短路电流、填充因子和转换效率.
    Organic photovoltaic devices (OPVs) have attracted considerable attention because of their advantages of light-weight, low-cost, large-scale manufacturing process and mechanical flexibility. Unfortunately, in order to achieve efficient carrier extraction, the photoactive layer in OPVs must be rather thin (100 nm or less) due to its extremely low carrier mobilities for most of organic/polymer materials (on the order of 10-4 cm2/(V·s)). Such thin photoactive layers lead to a significant loss of incident sunlight, thereby improving a final low light absorption efficiency and power conversion efficiency (PCE). To promote the light absorption and thus enhance PCE of OPVs, Au tetrahedron nanoparticles (NPs) are synthesized in this work and then they are wrapped with poly (sodium 4-styrenesulfonate) (PSS) to form core-shell structure tetrahedron NPs (Au@PSS tetrahedron NPs). They are further incorporated into the interface of hole extraction layer and light photoactive layer to improve PCE of OPVs by enhancing their surface plasmon resonance effect-induced light absorption. The influences of doping concentration and PSS shell thickness of theses Au tetrahedron NPs on device performances are explored. The results indicate that the best performing PCE occurs at 6% concentration of Au@PSS tetrahedron NPs, reaching 3.08%, while it is further improved to 3.65% with an optimized PSS shell thickness of 2.5 nm, showing an enhancement factor of 22.9% compared with that of the control counterpart. The performance improvement of OPVs mainly originates from the promoted light absorption of donor due to the location of the resonant absorption peak of Au@PSS tetrahedron NPs in the absorption region of donor. Simultaneously, the introduction of the PSS shell promotes the dissociation of excitons and charge transfer. All of these contribute to the increasing of short-circuit current, fill factor and PCE of OPVs.
    • 基金项目: 国家重点研发计划(批准号:2017YFB0404501)、国家自然科学基金(批准号:61274065)、江苏省杰出青年基金(批准号:BK20160039)和南京工程学院创新基金重大项目(批准号:CKJA201402,CKJA201602)资助的课题.
    • Funds: Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB0404501), the National Natural Science Foundation of China (Grant No. 61274065), the Outstanding Youth Foundation of Jiangsu Province of China (Grant No. BK20160039), and the Major Project of Innovation Fund of Nanjing Institute of Technology, China (Grant Nos. CKJA201402, CKJA201602).
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    Chen S F, Cheng F, Mei Y, Peng B, Kong M, Hao J Y, Zhang R, Xiong Q H, Wang L H, Huang W 2014 Appl. Phys. Lett. 104 213903

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    Peng L, Mei Y, Chen S F, Zhang Y P, Hao J Y, Deng L L, Huang W 2015 Chin. Phys. B 24 115202

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    Hao J Y, Xu Y, Zhang Y P, Chen S F, Li X G, Wang L H, Huang W 2015 Chin. Phys. B 24 045201

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    Baek S W, Park G, Noh J, Cho C, Lee C H, Seo M K, Song H, Lee J Y 2014 ACS Nano 8 3302

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    Ng A, Yiu W K, Foo Y, Shen Q, Bejaoui A, Zhao Y, Gokkaya H C, Djurisšić A B, Zapien J A, Chan W K, Surya C 2014 ACS Appl. Mater. Interfaces 6 20676

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  • [1]

    Du P, Jing P T, Li D, Cao Y H, Liu Z Y, Sun Z C 2015 Small 11 2454

    [2]

    Kakavelakis G, Vangelidis I, Heuer-Jungemann A, Kanaras G A, Lidorikis E, Stratakis E, Kymakis E 2016 Adv. Energy Mater. 6 1501640

    [3]

    Lu L Y, Luo Z Q, Xu T, Yu L P 2013 Nano Lett. 13 59

    [4]

    He Z, Zhong C M, Su S J, Xu M, Wu H B, Cao Y 2012 Nat. Photon. 6 593

    [5]

    You J B, Dou L, Yoshimura K, Kato T, Ohya K, Moriarty T, Emery K, Chen C C, Gao J, Li G, Yang Y 2013 Nat. Commun. 4 1446

    [6]

    Sun Y, Welch G C, Leong W L, Takacs C J, Bazan G C, Heeger A J 2012 Nat. Mater. 11 44

    [7]

    Cui Y, Yao H F, Yang C Y, Zhang S Q, Hou J H 2018 Acta Polym. Sin. 2 223

    [8]

    Westphalen M, Kreibig U, Rostalski J, Lüth H, Meissner D 2000 Sol. Energy Mater. Sol. Cells 61 97

    [9]

    Rand B P, Peumans P, Forrest S R 2004 J. Appl. Phys. 96 7519

    [10]

    Morfa A J, Rowlen K L, Reilly T H, Romero M J 2008 Appl. Phys. Lett. 92 013504

    [11]

    Yang X, Chueh C C, Li C Z, Yip H L, Yin P, Chen H Z, Chen W C, Jen A K Y 2013 Adv. Energy Mater. 3 666

    [12]

    Wang C C D, Choy W C H, Duan C, Fung D D S, Sha W E I, Xie F X, Huang F, Cao Y 2012 J. Mater. Chem. 22 1206

    [13]

    Xie F X, Choy W C H, Sha W E I, Zhang D, Zhang S Q, Li X C, Leung C W, Hou J H 2013 Energy Environ. Sci. 6 3372

    [14]

    Wang L, Yao Y, Ma X Q, Huang C T, Liu Z W, Yu H T, Wang M H, Zhang Q, Li X, Chen S F, Huang W 2018 Org. Electron. 61 96

    [15]

    Hao H, Wang L, Ma Xiao Q, Cao K, Yu H T, Wang M H, Gu W W, Zhu R, Anwar M S, Chen S F, Huang W 2018 Solar RRL 2 1800061

    [16]

    Peng L, Zhang R, Chen S F, Zhang Q, Deng L L, Feng X M, Huang W 2016 RSC Adv. 6 90944

    [17]

    Wu J L, Chen F C, Hsiao Y S, Chien F C, Chen P, Kuo C H, Huang M H, Hsu C S 2011 ACS Nano 5 959

    [18]

    Chen S F, Cheng F, Mei Y, Peng B, Kong M, Hao J Y, Zhang R, Xiong Q H, Wang L H, Huang W 2014 Appl. Phys. Lett. 104 213903

    [19]

    Peng L, Mei Y, Chen S F, Zhang Y P, Hao J Y, Deng L L, Huang W 2015 Chin. Phys. B 24 115202

    [20]

    Hao J Y, Xu Y, Zhang Y P, Chen S F, Li X G, Wang L H, Huang W 2015 Chin. Phys. B 24 045201

    [21]

    Baek S W, Park G, Noh J, Cho C, Lee C H, Seo M K, Song H, Lee J Y 2014 ACS Nano 8 3302

    [22]

    Ng A, Yiu W K, Foo Y, Shen Q, Bejaoui A, Zhao Y, Gokkaya H C, Djurisšić A B, Zapien J A, Chan W K, Surya C 2014 ACS Appl. Mater. Interfaces 6 20676

    [23]

    Zhang R, Zhou Y F, Peng L, Li X, Chen S F, Feng X M, Guan Y Q, Huang W 2016 Sci. Rep. 6 25036

计量
  • 文章访问数:  4942
  • PDF下载量:  40
  • 被引次数: 0
出版历程
  • 收稿日期:  2018-08-08
  • 修回日期:  2018-10-01
  • 刊出日期:  2019-12-20

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