Comprehensive Investigation and Analysis of Bulk-Heterojunction Microstructure of High-Performance PCE11:PCBM Solar Cells

Zhang C, Heumüller T, Gruber W, Almora O, Du X, Ying L, Chen J, Unruh T, Cao Y, Li N, Brabec C (2019)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2019

Journal

ACS Applied Materials and Interfaces American Chemical Society

Publisher: American Chemical Society

Book Volume: 11

Pages Range: 18555-18563

Journal Issue: 20

DOI: 10.1021/acsami.8b22539

Abstract

Worldwide research efforts have been devoted to organic photovoltaics in the hope of a large-scale commercial application in the near future. To meet the industrial production requirements, organic photovoltaics that can reach power conversion efficiency (PCE) of over 10% along with promising operational device stability are of utmost interest. In the study, we take PCE11:PCBM as a model system, which can achieve over 11% PCE when processed from nonhalogen solvents, to deeply investigate the morphology−
performance−stability correlation. We demonstrate that four batches of PCE11 with varying crystalline properties can achieve similar high performance in combination with PCBM. Careful device optimization is necessary in each case to properly address the requirements for the quite distinct microstructures. The
bulk-heterojunction (BHJ) microstructure is comprehensively investigated as a function of the macromolecular weight and crystallinity. It is demonstrated that small differences in morphology significantly affect the kinetics and thermodynamic equilibrium of the BHJ microstructure as well as the photostability and thermal stability of the PCE11:PCBM solar cells

Authors with CRIS profile

Thomas Heumüller Institute Materials for Electronics and Energy Technology (i-MEET) Wolfgang Gruber Professur für Nanomaterialcharakterisierung (Streumethoden) Osbel Almora Rodriguez Institute Materials for Electronics and Energy Technology (i-MEET) Xiaoyan Du Institute Materials for Electronics and Energy Technology (i-MEET) Tobias Unruh Professur für Nanomaterialcharakterisierung (Streumethoden) Ning Li Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

South China University of Technology (SCUT) / 华南理工大学 CN China (CN) Southern University of Science and Technology CN China (CN)

How to cite

APA:

Zhang, C., Heumüller, T., Gruber, W., Almora, O., Du, X., Ying, L.,... Brabec, C. (2019). Comprehensive Investigation and Analysis of Bulk-Heterojunction Microstructure of High-Performance PCE11:PCBM Solar Cells. ACS Applied Materials and Interfaces, 11(20), 18555-18563. https://dx.doi.org/10.1021/acsami.8b22539

MLA:

Zhang, Chaohong, et al. "Comprehensive Investigation and Analysis of Bulk-Heterojunction Microstructure of High-Performance PCE11:PCBM Solar Cells." ACS Applied Materials and Interfaces 11.20 (2019): 18555-18563.

BibTeX: Download