Morphology Characterization of Bulk Heterojunction Solar Cells

Song, Jingnan; Zhang, Ming; Yuan, Meng; Qian, Yuhao; Sun, Yanming; Liu, Feng

doi:10.1002/smtd.201700229

Title: Morphology Characterization of Bulk Heterojunction Solar Cells

Journal Article · 02 February 2018 · Small Methods

DOI: https://doi.org/10.1002/smtd.201700229 · OSTI ID:1419397

Song, Jingnan ^[1]; Zhang, Ming ^[1]; Yuan, Meng ^[1]; Qian, Yuhao ^[1]; Sun, Yanming ^[2];

^[1]

Department of Physics and Astronomy and Collaborative Innovation Center of IFSA (CICIFSA) Shanghai Jiao Tong University Shanghai 200240 P. R. China
School of Chemistry and Environment Beijing University of Aeronautics and Astronautics Beijing 100191 P. R. China

Abstract Revealing the nanostructure of bulk‐heterojunction (BHJ) photovoltaic blends is a critical task in the field of organic photovoltaics. The complicated morphology, ranging from binary blends to ternary mixtures, shows quite varied structural details that need to be fully characterized in terms of correlating them with device performance. The nonequilibrium nature of the BHJ thin‐film morphology makes the structure optimization difficult, and fundamental principles that relate to chemical structure, processing methods, and device performances have not yet been fully understood. On the other hand, various high‐powered techniques ranging from in‐house instrumentation to synchrotron techniques have been applied to this tremendously difficult research topic. More structural details, including length scale of phase separation, structural ordering, chain/molecular orientation, surface topology, etc., can be obtained in a quantitative manner, which finally allows the structure–property relationships to be determined. Here, the most important characterization techniques in understanding the morphology of BHJ solar cells are summarized, targeting chemists and materials scientists.

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Sponsoring Organization:: USDOE

OSTI ID:: 1419397

Journal Information:: Small Methods, Journal Name: Small Methods Vol. 2 Journal Issue: 3; ISSN 2366-9608

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 74 works

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