Organic Single-Crystal Semiconductor Films on a Millimeter Domain Scale

Sooncheol Kwon; Jehan Kim; Geunjin Kim; Kilho Yu; Yong-Ryun Jo; Bong-Joong Kim; Junghwan Kim; Hongkyu Kang; Byoungwook Park; Kwanghee Lee

doi:10.1002/adma.201502980

Organic Single-Crystal Semiconductor Films on a Millimeter Domain Scale

Adv Mater. 2015 Nov 18;27(43):6870-7. doi: 10.1002/adma.201502980. Epub 2015 Oct 1.

Authors

Sooncheol Kwon^{1

2

3}, Jehan Kim⁴, Geunjin Kim^{1

2}, Kilho Yu^{1

2}, Yong-Ryun Jo^{1

2}, Bong-Joong Kim^{1

2

3}, Junghwan Kim³, Hongkyu Kang³, Byoungwook Park^{1

2}, Kwanghee Lee^{1

2

3}

Affiliations

¹ School of Materials Science and Engineering (SMSE), Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Republic of Korea.
² Heeger Center for Advanced Materials (HCAM), Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Republic of Korea.
³ Research Institute for Solar and Sustainable Energies (RISE), Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Republic of Korea.
⁴ Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea.

PMID: 26425962
DOI: 10.1002/adma.201502980

Abstract

Nucleation and growth processes can be effectively controlled in organic semiconductor films through a new concept of template-mediated molecular crystal seeds during the phase transition; the effective control of these processes ensures millimeter-scale crystal domains, as well as the performance of the resulting organic films with intrinsic hole mobility of 18 cm(2) V(-1) s(-1).

Keywords: C8-BTBT; compressive lattice strain; nucleation and growth processes; phase transitions; single-crystal films.