Electroactive subwavelength gratings (ESWGs) from conjugated polymers for color and intensity modulation

被引：15

作者：

Bhuvana, Thiruvelu ^{[1
]}

Kim, Byeonggwan ^{[1
]}

Yang, Xu ^{[1
]}

Shin, Haijin ^{[1
]}

Kim, Eunkyoung ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

来源：

NANOSCALE | 2012年 / 4卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

OPTICAL-ELEMENTS; LIGHT; DIFFRACTION;

D O I：

10.1039/c2nr30611e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Subwavelength gratings with electroactive polymers such as poly(3-hexylthiophene) (P3HT) and poly(3,4-propylenedioxythiophene-phenylene) (P(ProDOT-Ph)) controlled the color intensity for various visible colors of diffracted light in a single device. Under the illumination of a white light, at a fixed angle of incidence, the color intensity of the diffracted light was reversibly switched from the maximum value down to 15% (85% decrease) by applying -2 to 2 V due to electrochemical (EC) reaction. All spectral colors including red, green, and blue were generated by changing the angle of incidence, and the intensity of each color was modulated electrochemically at a single EC device. With electroactive subwavelength gratings (ESWGs) of P3HT, the maximum modulation of the color intensity was observed in the red-yellow quadrant in the CIE color plot, whereas for the ESWGs of P(ProDOT-Ph), the maximum modulation of the color intensity was observed in the yellow-green and green-blue quadrants. Both ESWGs showed a memory effect, keeping their color and intensity even after power was turned off for longer than 40 hours.

引用

页码：3679 / 3686

页数：8

共 37 条

[1] Propylenedioxythiophene (ProDOT)-phenylene copolymers allow a yellow-to-transmissive electrochrome
Amb, Chad M.
Kerszulis, Justin A.
Thompson, Emily J.
Dyer, Aubrey L.
Reynolds, John R.
[J]. POLYMER CHEMISTRY, 2011, 2 (04) : 812 - 814
[2] [Anonymous], 1971, CIE PUBL
[3] Surface plasmon subwavelength optics
Barnes, WL
Dereux, A
Ebbesen, TW
[J]. NATURE, 2003, 424 (6950) : 824 - 830
[4] The donor-acceptor approach allows a black-to-transmissive switching polymeric electrochrome
Beaujuge, P. M.
Ellinger, S.
Reynolds, J. R.
[J]. NATURE MATERIALS, 2008, 7 (10) : 795 - 799
[5] Brundrett D. L., 1997, THESIS GEORGIA I TEC
[6] High angular tolerant color filter using subwavelength grating
Cheong, Byoung-Ho
Prudnikov, O. N.
Cho, Eunhyoung
Kim, Hae-Sung
Yu, Jaeho
Cho, Young-Sang
Choi, Hwan-Young
Shin, Sung Tae
[J]. APPLIED PHYSICS LETTERS, 2009, 94 (21)
[7] IMPRINT OF SUB-25 NM VIAS AND TRENCHES IN POLYMERS
CHOU, SY
KRAUSS, PR
RENSTROM, PJ
[J]. APPLIED PHYSICS LETTERS, 1995, 67 (21) : 3114 - 3116
[8] OPTICAL-ELEMENTS WITH ULTRAHIGH SPATIAL-FREQUENCY SURFACE CORRUGATIONS
ENGER, RC
CASE, SK
[J]. APPLIED OPTICS, 1983, 22 (20): : 3220 - 3228
[9] SUBMICROMETER PERIODICITY GRATINGS AS ARTIFICIAL ANISOTROPIC DIELECTRICS
FLANDERS, DC
[J]. APPLIED PHYSICS LETTERS, 1983, 42 (06) : 492 - 494
[10] ZERO-REFLECTIVITY HIGH SPATIAL-FREQUENCY RECTANGULAR-GROOVE DIELECTRIC SURFACE-RELIEF GRATINGS
GAYLORD, TK
BAIRD, WE
MOHARAM, MG
[J]. APPLIED OPTICS, 1986, 25 (24): : 4562 - 4567

← 1 2 3 4 →