Theoretical Study on the Photoelectric Properties of a Class of Copolymers Based on Benzodithiophene for Solar Cells

المؤلفون المشاركون

Xie, Xiao-Hua
Zhao, Xin-Wei
Li, Ming

المصدر

International Journal of Polymer Science

العدد

المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2018-05-30

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

الفيزياء

الملخص EN

The structural, electronic, and optical properties of PBDTTBT are comprehensively studied by density functional theory to rationalize the experimentally observed properties.

Periodic boundary conditions method is employed to simulate the polymer block and calculate effective charge mass from the band structure calculation to describe charge transport properties.

Moreover, both time-dependent density functional theory and a set of multidimensional visualization techniques are used to characterize the exciton dissociation ability in the PCBM: PBDTTBT interface.

These theoretical methods and calculation techniques not only promote deep understanding of the connection between chemical structures and optical and electronic properties of the donor-acceptor system but also can be used to rationally design a novel donor-acceptor system.

Based on the same calculated methods as PBDTTBT, four copolymers PBDTTTP, PBDTTTO, PBDTTTPD, and PBDTTFPD are designed to study their potentials as donors in polymer BHJ.

The results indicate that PBDTTBT’s well conjugation benefits its good stability, and its wide and strong absorption spectra in the range of visible light, appropriate FMO levels, well charge transport, and favorable exciton dissociation lead to its photovoltaic performance.

Furthermore, through comparing the four designed polymers with PBDTTBT, we conclude that the four designed polymers have stronger exciton dissociation ability and larger open-circuit voltage and external quantum efficiencies.

Consequently, the four designed copolymers are promising candidates for polymer BHJ solar cells.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Xie, Xiao-Hua& Zhao, Xin-Wei& Li, Ming. 2018. Theoretical Study on the Photoelectric Properties of a Class of Copolymers Based on Benzodithiophene for Solar Cells. International Journal of Polymer Science،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1175042

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Xie, Xiao-Hua…[et al.]. Theoretical Study on the Photoelectric Properties of a Class of Copolymers Based on Benzodithiophene for Solar Cells. International Journal of Polymer Science No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1175042

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Xie, Xiao-Hua& Zhao, Xin-Wei& Li, Ming. Theoretical Study on the Photoelectric Properties of a Class of Copolymers Based on Benzodithiophene for Solar Cells. International Journal of Polymer Science. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1175042

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1175042