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Wang Z, Miyadera T, Yamanari T, et al. Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics. ACS Appl Mater Interfaces. 2014;6(9):6369-77doi: 10.1021/am405740c.
Wang, Z., Miyadera, T., Yamanari, T., & Yoshida, Y. (2014). Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics. ACS applied materials & interfaces, 6(9), 6369-77. https://doi.org/10.1021/am405740c
Wang, Zhiping, et al. "Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics." ACS applied materials & interfaces vol. 6,9 (2014): 6369-77. doi: https://doi.org/10.1021/am405740c
Wang Z, Miyadera T, Yamanari T, Yoshida Y. Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics. ACS Appl Mater Interfaces. 2014 May 14;6(9):6369-77. doi: 10.1021/am405740c. Epub 2014 Apr 17. PMID: 24712371.
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ACS Appl Mater Interfaces. 2014 May 14;6(9):6369-77. doi: 10.1021/am405740c. Epub 2014 Apr 17.

Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics.

ACS applied materials & interfaces

Zhiping Wang, Tetsuhiko Miyadera, Toshihiro Yamanari, Yuji Yoshida

Affiliations

  1. Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology (AIST) , AIST Tsukuba Central 5, 1-1-1, 305-8568 Higashi, Tsukuba, Japan.

PMID: 24712371 DOI: 10.1021/am405740c

Abstract

A strategy to control the molecular growth of coevaporated zinc phthalocyanine (ZnPc) and fullerene (C60) blended films for efficient organic photovoltaic (OPV) cells was demonstrated. Introduction of a 2,5-bis(4-biphenylyl)-bithiophene (BP2T) film or a ZnPc film on BP2T as nanostructured templates not only results in phase-separated domains in blended films with clear interpenetrating networks but also improves the crystallinity of ZnPc domains, both of which enhance photocurrent generation and charge carrier transport. Such morphology is strongly associated with the molecular growth of the templating layers. Roughness and adhesion of the templating layers are of great importance for the molecular growth of the blended films and in turn for cell characteristics. By carefully regulating the molecular growth of the blended films, the power conversion efficiency was improved by 125%, from 1.85 to 4.15% under 1 sun.

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