Acidochromic organic photovoltaic integrated device

Sökning: WFRF:(Lan Qi) > Acidochromic organi...

Tremendous efforts have been devoted to boosting the power conversion efficiency (PCE) of organic solar cells (OSCs) via the introduction of cathode interlayers (CILs). However, CIL materials have limited diversity and the development of multifunctional devices is largely neglected. Herein, an acidochromic organic photovoltaic integrated device is firstly proposed by introducing an acid-sensitive stimulating-reaction organic molecule as both the CIL of OSCs and the sensor of monitoring environmental acidity. The oxazolidine unit of acidochromic molecule can form a ring-opening structure after acid treatment, resulting in the remarkable color change with the direct reflection of pH value of ecological environment. The additive-free PM6:Y6 OSCs using the acidochromic molecule as the CIL achieve an excellent PCE of above 15.29 %, which is 47 % higher than that of the control device. The PCE can even maintain above 92 % after treating CIL with various strong acids (pH = 1). Moreover, the color of acidified films and the degraded performance of acidified OSCs can be easily restored by alkaline treatment. The successful application of CIL in other highly efficient photovoltaic systems proves its good universality. This work triggers the promising application of acidochromic molecules in solar cells as CIL with the additional function of recognition of acid environment.

Chen, Qiaonan,1992Jinan University,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)qiaonan (författare)
Liu, ZheSoutheast University,Jinan University (författare)
Yu, FengJinan University (författare)
Su, WenyanXi'an University of Science and Technology,Jinan University (författare)
Cai, ZhizhaoJinan University (författare)
Guan, WeiJinan University (författare)
Li, YaohuiJinan University (författare)
Sheng, Lan (författare)
Qi, ZhengjianSoutheast University (författare)
Wang, Ergang,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ergang (författare)
Hou, LintaoJinan University (författare)
Jinan UniversityChalmers tekniska högskola (creator_code:org_t)

Av författaren/redakt...: Wang, Yufei; Chen, Qiaonan, 1 ...; Liu, Zhe; Yu, Feng; Su, Wenyan; Cai, Zhizhao; visa fler...; Guan, Wei; Li, Yaohui; Sheng, Lan; Qi, Zhengjian; Wang, Ergang, 19 ...; Hou, Lintao; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Textil gummi och ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.