Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength

Jing Zhu; Won Jin Kim; Guang S. He; Jangwon Seo; Ken Tye Yong; Dongho Lee; Alexander N. Cartwright; Yiping Cui; Paras N. Prasad

doi:10.1063/1.3531650

Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength

Jing Zhu
, Won Jin Kim
, Guang S. He
, Jangwon Seo
, Ken Tye Yong
, Dongho Lee
, Alexander N. Cartwright
, Yiping Cui
, Paras N. Prasad

Chemistry

University at Buffalo

SUNY Buffalo
Southeast University, Nanjing
CAS - Shanghai Institute of Optics and Fine Mechanics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Enhanced photorefractive (PR) response in nanocrystal-polymer nanocomposite PR devices at the telecommunication wavelength of 1.3 μm is achieved using facile surface treatment of PbS nanocrystals functionalized with thermally cleavable ligands. The cleavage of the ligands, by heat treatment, results in significant improvement in both photocharge generation and PR response, as demonstrated by photoconductivity and two-beam coupling (TBC) experiments, respectively. The TBC experiment shows that the optical gain coefficient is improved drastically (about 63%) at an applied electric field of 84 V/μm.

Original language	English
Article number	263108
Journal	Applied Physics Letters
Volume	97
Issue number	26
DOIs	https://doi.org/10.1063/1.3531650
State	Published - Dec 27 2010

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10.1063/1.3531650

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@article{7eb903697ac9404a908116a1517c7a22,

title = "Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength",

abstract = "Enhanced photorefractive (PR) response in nanocrystal-polymer nanocomposite PR devices at the telecommunication wavelength of 1.3 μm is achieved using facile surface treatment of PbS nanocrystals functionalized with thermally cleavable ligands. The cleavage of the ligands, by heat treatment, results in significant improvement in both photocharge generation and PR response, as demonstrated by photoconductivity and two-beam coupling (TBC) experiments, respectively. The TBC experiment shows that the optical gain coefficient is improved drastically (about 63\%) at an applied electric field of 84 V/μm.",

author = "Jing Zhu and Kim, \{Won Jin\} and He, \{Guang S.\} and Jangwon Seo and Yong, \{Ken Tye\} and Dongho Lee and Cartwright, \{Alexander N.\} and Yiping Cui and Prasad, \{Paras N.\}",

year = "2010",

month = dec,

day = "27",

doi = "10.1063/1.3531650",

language = "English",

volume = "97",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength

AU - Zhu, Jing

AU - Kim, Won Jin

AU - He, Guang S.

AU - Seo, Jangwon

AU - Yong, Ken Tye

AU - Lee, Dongho

AU - Cartwright, Alexander N.

AU - Cui, Yiping

AU - Prasad, Paras N.

PY - 2010/12/27

Y1 - 2010/12/27

N2 - Enhanced photorefractive (PR) response in nanocrystal-polymer nanocomposite PR devices at the telecommunication wavelength of 1.3 μm is achieved using facile surface treatment of PbS nanocrystals functionalized with thermally cleavable ligands. The cleavage of the ligands, by heat treatment, results in significant improvement in both photocharge generation and PR response, as demonstrated by photoconductivity and two-beam coupling (TBC) experiments, respectively. The TBC experiment shows that the optical gain coefficient is improved drastically (about 63%) at an applied electric field of 84 V/μm.

AB - Enhanced photorefractive (PR) response in nanocrystal-polymer nanocomposite PR devices at the telecommunication wavelength of 1.3 μm is achieved using facile surface treatment of PbS nanocrystals functionalized with thermally cleavable ligands. The cleavage of the ligands, by heat treatment, results in significant improvement in both photocharge generation and PR response, as demonstrated by photoconductivity and two-beam coupling (TBC) experiments, respectively. The TBC experiment shows that the optical gain coefficient is improved drastically (about 63%) at an applied electric field of 84 V/μm.

UR - https://www.scopus.com/pages/publications/78650860001

U2 - 10.1063/1.3531650

DO - 10.1063/1.3531650

M3 - Article

SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 263108

ER -

Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength

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