Molecular engineering of panchromatic unsymmetrical squaraines for dye-sensitized solar cell applications

被引：66
作者：
Choi, Hyunbong [1 ]
Kim, Jeum-Jong [1 ]
Song, Kihyung [2 ]
Ko, Jaejung [1 ]
Nazeeruddin, Md. K. [3 ]
Graetzel, Michael [3 ]
机构：
[1] Korea Univ, Dept Adv Mat Chem, Jochiwon 339700, Chungnam, South Korea
[2] Korea Natl Univ Educ, Dept Chem, Cheongwon 363791, Chungbuk, South Korea
[3] Base Ecole Polytech Fed Lausanne, Fac Sci, LPI, Inst Sci & Ingenierie Chim, CH-1015 Lausanne, Switzerland
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 16期
关键词：
NANOCRYSTALLINE TIO2 FILMS; BIS-DIMETHYLFLUORENYL AMINO; EFFICIENT FAR-RED; ORGANIC SENSITIZERS; ENERGY-TRANSFER; CONVERSION EFFICIENCY; ELECTRON-INJECTION; HIGHLY EFFICIENT; ALKYL CHAIN; PHOTOSENSITIZATION;
D O I：
10.1039/b926863d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Three unsymmetrical squaraine dyes JK-64, JK-65, and JK-64Hx, containing a bulky spirobifluorene or hexyloxyphenyl unit are designed and synthesized. These sensitizers, when anchored onto a TiO(2) surface, exhibit decreased aggregation as well as enhanced unidirectional flow of electrons. Under standard global AM 1.5 solar conditions, an optimized JK-64Hx sensitized cell gave a short-circuit photocurrent density (J(sc)) of 12.82 mA cm(-2), an open-circuit voltage (V(oc)) of 0.54 V and a fill factor (ff) of 0.75, corresponding to an overall conversion efficiency (eta) of 5.20%.
引用
收藏
页码：3280 / 3286
页数：7
相关论文
共 43 条
  • [21] Applications of functionalized transition metal complexes in photonic and optoelectronic devices
    Kalyanasundaram, K
    Grätzel, M
    [J]. COORDINATION CHEMISTRY REVIEWS, 1998, 177 : 347 - 414
  • [22] ULTRAFAST PHOTOCHEMICAL EVENTS ASSOCIATED WITH THE PHOTOSENSITIZATION PROPERTIES OF A SQUARAINE DYE
    KAMAT, PV
    DAS, S
    THOMAS, KG
    GEORGE, MV
    [J]. CHEMICAL PHYSICS LETTERS, 1991, 178 (01) : 75 - 79
  • [23] EXCITED-STATE PROPERTIES AND PHOTOSENSITIZATION BEHAVIOR OF BIS(2,4-DIHYDROXYPHENYL)SQUARAINE
    KAMAT, PV
    HOTCHANDANI, S
    DELIND, M
    THOMAS, KG
    DAS, S
    GEORGE, MV
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (14): : 2397 - 2402
  • [24] Molecular engineering of organic sensitizers containing p-phenylene vinylene unit for dye-sensitized solar cells
    Kim, Chulwoo
    Choi, Hyunbong
    Kim, Sanghoon
    Baik, Chul
    Song, Kihyung
    Kang, Moon-Sung
    Kang, Sang Ook
    Ko, Jaejung
    [J]. JOURNAL OF ORGANIC CHEMISTRY, 2008, 73 (18) : 7072 - 7079
  • [25] A polymer gel electrolyte to achieve ≥6% power conversion efficiency with a novel organic dye incorporating a low-band-gap chromophore
    Kim, Jeum-Jong
    Choi, Hyunbong
    Lee, Ji-Won
    Kang, Moon-Sung
    Song, Kihyung
    Kang, Sang Ook
    Ko, Jaejung
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (43) : 5223 - 5229
  • [26] Enhanced photovoltaic performance and long-term stability of quasi-solid-state dye-sensitized solar cells via molecular engineering
    Kim, Sanghoon
    Kim, Duckhyun
    Choi, Hyunbong
    Kang, Moon-Sung
    Song, Kihyung
    Kang, Sang Ook
    Ko, Jaejung
    [J]. CHEMICAL COMMUNICATIONS, 2008, (40) : 4951 - 4953
  • [27] Novel conjugated organic dyes containing bis-dimethylfluorenyl amino phenyl thiophene for efficient solar cell
    Kim, Sanghoon
    Choi, Hyunbong
    Kim, Duckhyun
    Song, Kihyung
    Kang, Sang Ook
    Ko, Jaejung
    [J]. TETRAHEDRON, 2007, 63 (37) : 9206 - 9212
  • [28] Molecular engineering of organic sensitizers for solar cell applications
    Kim, Sanghoon
    Lee, Jae Kwan
    Kang, Sang Ook
    Ko, Jaejung
    Yum, J. -H.
    Fantacci, Simona
    De Angelis, Filippo
    Di Censo, D.
    Nazeeruddin, Md. K.
    Graetzel, Michael
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (51) : 16701 - 16707
  • [29] Alkyl chain barriers for kinetic optimization in dye-sensitized solar cells
    Kroeze, Jessica E.
    Hirata, Narukuni
    Koops, Sara
    Nazeeruddin, Md. K.
    Schmidt-Mende, Lukas
    Graetzel, Michael
    Durrant, James R.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (50) : 16376 - 16383
  • [30] Current density versus potential characteristics of dye-sensitized nanostructured semiconductor photoelectrodes. 1. Analytical expressions
    Lee, JJ
    Coia, GM
    Lewis, NS
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (17) : 5269 - 5281
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