TY - JOUR
T1 - Multistep nucleation and growth mechanisms of organic crystals from amorphous solid states
AU - Chen, Hongliang
AU - Li, Mingliang
AU - Lu, Zheyu
AU - Wang, Xiaoge
AU - Yang, Junsheng
AU - Wang, Zhe
AU - Zhang, Fei
AU - Gu, Chunhui
AU - Zhang, Weining
AU - Sun, Yujie
AU - Sun, Junliang
AU - Zhu, Wenguang
AU - Guo, Xuefeng
N1 - Funding Information:
We acknowledge primary financial supports from National Key R&D Programme of China (2017YFA0204901, 2017YFA0204904 and 2016YFA0301004), the National Natural Science Foundation of China (Grants 21727806, 21621061, 11674299, 11634011 and 11374273), the Natural Science Foundation of Beijing (Z181100004418003), the Fundamental Research Funds for the Central Universities (Grants WK2340000063, WK2340000082 and WK2060190084) and the interdisciplinary medicine Seed Fund of Peking University. The authors thank beamline BL14B1 (Shanghai Synchrotron Radiation Facility) for providing the beam time.
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Molecular self-assembly into crystallised films or wires on surfaces produces a big family of motifs exhibiting unique optoelectronic properties. However, little attention has been paid to the fundamental mechanism of molecular crystallisation. Here we report a biomimetic design of phosphonate engineered, amphiphilic organic semiconductors capable of self–assembly, which enables us to use real-time in-situ scanning probe microscopy to monitor the growth trajectories of such organic semiconducting films as they nucleate and crystallise from amorphous solid states. The single-crystal film grows through an evolutionary selection approach in a two-dimensional geometry, with five distinct steps: droplet flattening, film coalescence, spinodal decomposition, Ostwald ripening, and self-reorganised layer growth. These sophisticated processes afford ultralong high-density microwire arrays with high mobilities, thus promoting deep understanding of the mechanism as well as offering important insights into the design and development of functional high-performance organic optoelectronic materials and devices through molecular and crystal engineering.
AB - Molecular self-assembly into crystallised films or wires on surfaces produces a big family of motifs exhibiting unique optoelectronic properties. However, little attention has been paid to the fundamental mechanism of molecular crystallisation. Here we report a biomimetic design of phosphonate engineered, amphiphilic organic semiconductors capable of self–assembly, which enables us to use real-time in-situ scanning probe microscopy to monitor the growth trajectories of such organic semiconducting films as they nucleate and crystallise from amorphous solid states. The single-crystal film grows through an evolutionary selection approach in a two-dimensional geometry, with five distinct steps: droplet flattening, film coalescence, spinodal decomposition, Ostwald ripening, and self-reorganised layer growth. These sophisticated processes afford ultralong high-density microwire arrays with high mobilities, thus promoting deep understanding of the mechanism as well as offering important insights into the design and development of functional high-performance organic optoelectronic materials and devices through molecular and crystal engineering.
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U2 - 10.1038/s41467-019-11887-2
DO - 10.1038/s41467-019-11887-2
M3 - Article
C2 - 31455804
AN - SCOPUS:85071295546
SN - 2041-1723
VL - 10
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 3872
ER -