TY - JOUR
T1 - Vapor-Phase Living Assembly of π-Conjugated Organic Semiconductors
AU - Hai, Tao
AU - Feng, Zuofang
AU - Sun, Yanqiu
AU - Wong, Wai Yeung
AU - Liang, Yin
AU - Zhang, Qing
AU - Lei, Yilong
N1 - Funding Information:
Y.L.L. thanks the financial support from the National Natural Science Foundation of China (Grant Nos. 21971189 and 22090022). W.-Y.W. thanks the financial support from a fellowship award from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. PDFS2021-5S06), the Hong Kong Research Grants Council (SRFS2021-5S01 and PolyU 153058/19P), Hong Kong Polytechnic University (Grant 1-ZE1C), and Clarea Au for the Endowed Professorship in Energy (Grant 847S).
Publisher Copyright:
© 2022 American Chemical Society
PY - 2022/2/22
Y1 - 2022/2/22
N2 - In contrast to well-studied amphiphilic block copolymers (BCPs) and π-stacked dyes, living assembly of hydrophobic π-conjugated materials has not yet been explored to date. Using a microspacing physical vapor transport (PVT) technique, the prefabricated microrods of organic semiconductors involving 9,10-dicyanoanthracene (DCA, A) or its binary alloy (B) can act as seeds to initiate living homoepitaxial growth from their ends, giving elongated microrods with controlled length. Red-green-red tricolor fluorescent microrod heterostructures with low dispersity are further realized by living heteroepitaxial growth of B microrod blocks on A seed microrod tips. Upon varying the growth sequence of each block, reverse triblock microrods are also accessible. Such a seed-induced living growth is applicable to triblock microrod heterostructures of more binary combinations as well as even more complex penta- and hepta-block heterostructures comprising A and B. By virtue of a convenient vapor-phase growth method, the present work demonstrates the generality of living assembly of π-conjugated materials.
AB - In contrast to well-studied amphiphilic block copolymers (BCPs) and π-stacked dyes, living assembly of hydrophobic π-conjugated materials has not yet been explored to date. Using a microspacing physical vapor transport (PVT) technique, the prefabricated microrods of organic semiconductors involving 9,10-dicyanoanthracene (DCA, A) or its binary alloy (B) can act as seeds to initiate living homoepitaxial growth from their ends, giving elongated microrods with controlled length. Red-green-red tricolor fluorescent microrod heterostructures with low dispersity are further realized by living heteroepitaxial growth of B microrod blocks on A seed microrod tips. Upon varying the growth sequence of each block, reverse triblock microrods are also accessible. Such a seed-induced living growth is applicable to triblock microrod heterostructures of more binary combinations as well as even more complex penta- and hepta-block heterostructures comprising A and B. By virtue of a convenient vapor-phase growth method, the present work demonstrates the generality of living assembly of π-conjugated materials.
KW - hydrophobic π-conjugated semiconductors
KW - living crystallization-driven self-assembly (CDSA)
KW - living epitaxial growth
KW - living supramolecular polymerization (LSP)
KW - microspacing physical vapor transport (PVT)
KW - multiblock microrods
UR - http://www.scopus.com/inward/record.url?scp=85124260784&partnerID=8YFLogxK
U2 - 10.1021/acsnano.1c11295
DO - 10.1021/acsnano.1c11295
M3 - Journal article
C2 - 35107255
AN - SCOPUS:85124260784
SN - 1936-0851
VL - 16
SP - 3290
EP - 3299
JO - ACS Nano
JF - ACS Nano
IS - 2
ER -