A conjugated low band gap diketopyrrolopyrrole and dibenzosilole-based polymer for organic solar cell

Shin, Woong; Park, Jong Hyun; Lim, Gyeong Eun; Sylvianti, Nadhila; Ahn, Byung-Hyun; Kim, Joo Hyun

doi:10.1016/j.synthmet.2015.10.001

Cited by 6 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PC 71 BM (Cat No. nano-cPCBM-SF) was purchased from nano-C, Inc. 4-bromo-7-methyl-benzo [1,2,5]thiadiazole (1) 23 and 2,7-dibromo-9,9-dioctyl-9H-dibenzosilole (4) 24,25 were synthesized according to the literature procedures.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Conjugated Oligomer Based on Benzothiadiazole and Its Application of Organic Solar Cells

Shin¹,

Kim²,

Sylvianti³

et al. 2016

Self Cite

View full text Add to dashboard Cite

초록: 2,1,3-benzothiadiazole(BT)과 silofluorene(SiF)을 기본골격으로 하는 acceptor(A)-donor(D)-acceptor(A) 형태 의 공액형(conjugated) 분자(SiF-BT)를 합성하였다. 공액결합의 길이를 늘여 주기 위하여 두 개의 thiophene을 SiF와 BT 사이에 도입하였으나 밴드갭은 꽤 큰 2.26 eV에 불과하였다. 이는 SiF와 BT 사이의 intramolecular charge transfer 의 정도가 작기 때문이라 판단된다. 순환전압전류법 및 흡수분광법을 이용하여 측정한 SiF-BT의 HOMO 및 LUMO 에너지 준위는 각각-5.43 and-3.17 eV이며, 최적화된 유기태양전지의 효율은 0.53%(단락전류=-2.06 mA/cm 2 , 충진 인자=29.8%, 개방전압=0.90 V)임을 확인하였다.

show abstract

Section: Methodsmentioning

confidence: 99%

Synthesis of Conjugated Oligomer Based on Benzothiadiazole and Its Application of Organic Solar Cells

Shin¹,

Kim²,

Sylvianti³

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…40,[89][90][91][92] Furthermore, high values of driving force, despite facilitating charge separation, appear not to contribute to increase the BC!, as high values of ∆! ,, 123 are related to low energy conversion efficiencies.…”

mentioning

confidence: 99%

Photophysical properties of donor(D)-acceptor(A)-donor(D) diketopyrrolopyrrole (A) systems as donors for applications to organic electronic devices

Rosa,

Borges Jr

2024

Preprint

View full text Add to dashboard Cite

Fourteen substituted diketopyrrolopyrrole (DPP) molecules in a donor (D)-acceptor (DPP)-donor (D) arrangement were designed. We employed density functional theory (DFT), time-dependent DFT and the ab initio wave function second-order algebraic diagrammatic construction (ADC(2)) methods to investigate theoretically these systems. The aromatic substituents have one, two or three hetero- and non-hetero rings. We comprehensively investigated their optical, electronic and charge transport properties to evaluate potential applications in organic electronic devices. We found that the substituents based on one, two or three aromatic rings bonded to the DPP core functioning as a donor can improve the efficiency of an organic solar cell by fine-tuning the HOMO/LUMO levels to match acceptors in a bulk heterojunctions with PC61BM and the non-fullerene small-molecule ITIC (3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone)-5,5,11,11-tetrakis(4 hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) acceptors. Several properties of interest for organic photovoltaic devices were computed. We show that the investigated molecules are promising for applications as donor materials when combined with typical acceptors in bulk heterojunctions because they have appreciable energy conversion efficiencies resulting from their low ionization potentials and high electronic affinities. This scenario allows a more effective charge separation and reduces the recombination rates. A comprehensive charge transfer analysis shows that the D – A (DDP) – D systems have significant intramolecular charge transfer, further confirming their promise as candidates for donor materials in solar cells. The significant photophysical properties of DPP derivatives, including the computed high quantum yields of fluorescence emission, also allow these materials to be used in organic light-emitting diodes (OLEDs).

show abstract

A comprehensive review on the reasons behind low power conversion efficiency of dibenzo derivatives based donors in bulk heterojunction organic solar cells

Ramki

Tigulla

Sathiyan

et al. 2019

Organic Electronics

View full text Add to dashboard Cite

A conjugated low band gap diketopyrrolopyrrole and dibenzosilole-based polymer for organic solar cell

Cited by 6 publications

References 49 publications

Synthesis of Conjugated Oligomer Based on Benzothiadiazole and Its Application of Organic Solar Cells

Synthesis of Conjugated Oligomer Based on Benzothiadiazole and Its Application of Organic Solar Cells

Photophysical properties of donor(D)-acceptor(A)-donor(D) diketopyrrolopyrrole (A) systems as donors for applications to organic electronic devices

A comprehensive review on the reasons behind low power conversion efficiency of dibenzo derivatives based donors in bulk heterojunction organic solar cells

Contact Info

Product

Resources

About