Stimuli-responsive cyclometalated platinum complex bearing bent molecular geometry for highly efficient solution-processable OLEDs
Stimuli-responsive cyclometalated platinum complex bearing bent molecular geometry for highly efficient solution-processable OLEDs
复制标题
具有弯曲分子几何结构的刺激响应环金属化铂络合物可用于高效可溶液加工的 OLED
DOI：
10.1016/j.cclet.2020.05.005
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发表时间：
2020-05
影响因子：
9.1
通讯作者：
Yafei Wang
中科院分区：
文献类型：
--
作者：
Zhenhua Wei;Kai Zhang;Chan Kyung Kim;Shuai Tan;Shaojie Wang;Lin Wang;Jun Li;Yafei Wang
智能材料在半导体领域中具有潜在的应用前景，受到人们的广泛关注。在此背景下，制备并表征了（dfppy-DC）Pt（acac）和（dfppy-O-DC）Pt（acac），其中（2-（4 '，6'-二氟苯基）吡啶基N，C2 '）（2，4-戊二酮基-O，O）Pt（II）作为平面发射核心，9-（4-（苯磺酰基）苯基）-9H-咔唑（DC）作为弯曲侧基。两种铂配合物在溶液和固体状态下均显示出明亮的发光，并伴随着在机械研磨、有机溶剂蒸气和压力下迷人的外部刺激响应发光。发光颜色的变化跨越了从黄色到近红外的范围。以铂配合物为掺杂剂，制备了溶液可加工有机电致发光器件（OLED），其最大外量子效率达到18%左右，是目前已报道的溶液可加工有机电致发光器件中最高的。本研究表明，铂配合物通过巧妙的分子设计，可以表现出很好的刺激响应发射，为半导体领域智能材料的发展开辟了一条新的途径。
Smart materials, such as stimuli-responsive luminescence, have attracted much attentions due to their potential application in semiconductor filed. In this context, platinum complexes of (dfppy-DC)Pt(acac) and (dfppy-O-DC)Pt(acac) were prepared and characterized, in which (2-(4',6'-difluorophenyl)pyridinatoN,C2')(2,4-pentanedionato-O,O)Pt(II) was used as the planar emission core and 9-(4-(phenylsulfonyl)phenyl)-9H-carbazole (DC) was regard as the bent pendent. Both platinum complexes showed bright emission in solution and solid state, concomitant with charming external-stimuli-responsive emission under .mechanical grinding, organic solvent vapors and pressure. The change emission color spanned from yellow to near-infrared region. Using the platinum complexes as the dopant, solution processable organic light-emitting diodes (OLEDs) were fabricated and a maximum external quantum efficiency of ⁓18% was achieved, which is the highest value among the reported solution-processable OLEDs based on external-stimuli-responsive luminescence. This research demonstrated that platinum complex can show promising stimuli responsive emission via ingenious molecular design, indicating a novel way for developing the smart materials in semiconductor filed.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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影响因子：
4.6
作者：
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通讯作者：
Fujihara, Takashi
影响因子：
9
作者：
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通讯作者：
Zhi‐Qiang Zhu;Choong-Do Park;Kody Klimes;Jian Li