Low dark current density in organic photodiodes achieved by reduced trap states of conjugated polymers bearing a fluorinated moiety

Yongqi Bai; Sungwoo Seo; Jong‐Woon Ha; Minho Yoon; Ning Yang; Hea Jung Park; Sung Cheol Yoon; Changjin Lee; Do‐Hoon Hwang; Jiyoul Lee

doi:10.1039/d2tc04116b

January 1, 2022Journal of Materials Chemistry C

Low dark current density in organic photodiodes achieved by reduced trap states of conjugated polymers bearing a fluorinated moiety

View at Publisher

Ask AI

Bookmark

Share

Key Points

This research aims to reduce dark current density in organic photodiodes by modifying polymer structures.
Fluorination of the electron donor unit in donor-acceptor conjugated polymers was performed.
Trap density of states (DOS) was evaluated to assess the impact on dark current density.
Material properties were systematically analyzed to establish links between fluorination and current density reduction.
Fluorination led to a significant reduction in dark current density compared to unmodified polymers.
Decreased trap density of states was confirmed, correlating with improved photodiode performance.
Lower dark current density was confirmed by measuring J d against control samples.

Ask about this paper

Answers are grounded in this paper and cite their sources.

Implication

Shows reduced dark current density in organic photodiodes, indicating material modifications are effective.

Abstract

A strategy to obtain low J d in OPDs from a material point of view is presented: fluorination of the electron donor unit in a donor–acceptor type conjugated polymer is an effective way to reduce the J d of OPDs by suppressing the trap DOS.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Bai et al. (2022) studied this question.

synapsesocial.com/papers/6a5e88961ef15e70f158f98d https://doi.org/10.1039/d2tc04116b

View at Publisher

Ask AI

Bookmark

Share

Low dark current density in organic photodiodes achieved by reduced trap states of conjugated polymers bearing a fluorinated moiety

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Low dark current density in organic photodiodes achieved by reduced trap states of conjugated polymers bearing a fluorinated moiety

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Keep reading

Keep reading