Organoboron donor-π-acceptor chromophores for small-molecule organic solar cells

Nolasco, J. C.; Ryan, James W.; Rodríguez, Mario; Castro-Carranza, A.; Maldonado, José Luis; Ramos‐Ortíz, Gabriel; Barbosa-Garcı́a, Oracio; Gutowski, J.; Palomares, Emilio; Parisi, J.

doi:10.1007/s10854-018-9732-6

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…Besides the N–B←N‐based molecules, three O‐B←N‐embedded molecules (120a‐c) were also prepared and the PHJ solar cells using C60 as the acceptor showed low efficiencies of ≈ 1.00%. [ 181 ]…”

Section: B←n‐embedded Opv Materialsmentioning

confidence: 99%

B←N Coordination: From Chemistry to Organic Photovoltaic Materials

Huang

Wang

Xiang

et al. 2021

Adv Energy and Sustain Res

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Coordination between boron Lewis acid and nitrogen Lewis base (B←N) is a classically chemical issue that has been known for several decades. Recently, this B←N chemistry developed into a new stage toward electronic materials, e.g., adjusting optoelectronic properties of N‐based conjugated molecules via adding B Lewis acids, synthesizing B←N‐bridged conjugated units, and further constructing B←N‐embedded organic photovoltaic (OPV) materials. Herein, these progresses are systematically summarized starting from certain chemical issues concerning B←N coordination, e.g., Lewis acidity of typical B Lewis acids and their interactions with N‐contained conjugated molecules. Then, some fused and ladder‐type B←N‐bridged units are reviewed in terms of the relationship between molecular structures and optoelectronic properties. Finally, the recently flourished B←N‐embedded OPV materials are summarized. The prospect of OPV materials concerning B←N coordination is also proposed, hoping to attract more attention to this filed and motivate its rolling rapidly.

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Section: B←n‐embedded Opv Materialsmentioning

confidence: 99%

B←N Coordination: From Chemistry to Organic Photovoltaic Materials

Huang

Wang

Xiang

et al. 2021

Adv Energy and Sustain Res

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“…Q-band gap energy (E g1 ) was chosen due to half of the solar photon flux occurring at the low band gap energy and also essential in the development of NIR OPD [25]. Next, the HOMO and LUMO levels of VTTBNc are determined by measuring the oxidation and reduction onset potential using CV measurement [26,27]. A proper alignment of HOMO-LUMO energy levels between donor and acceptor is essential for the electron transfer in the device.…”

Section: Determination Of Vttbnc Energy Bandgapmentioning

confidence: 99%

“…The work function and energy levels alignment for all materials are illustrated in Figure 5. Next, the HOMO and LUMO levels of VTTBNc are determined by measuring the oxidation and reduction onset potential using CV measurement [26,27]. A proper alignment of HOMO-LUMO energy levels between donor and acceptor is essential for the electron transfer in the device.…”

Section: Homo Work Function Homomentioning

confidence: 99%

Naphthalocyanine-Based NIR Organic Photodiode: Understanding the Role of Different Types of Fullerenes

et al. 2021

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In this work, we presented experimental observation on solution-processed bulk heterojunction organic photodiode using vanadyl 2,11,20,29-tetra tert-butyl 2,3 naphthalocyanine (VTTBNc) as a p-type material. VTTBNc is blended with two different acceptors, which are PC61BM and PC71BM, to offer further understanding in evaluating the performance in organic photodiode (OPD). The blend film of VTTBNc:PC71BM with a volumetric ratio of 1:1 exhibits optimized performance in the VTTBNc blend structure with 2.31 × 109 Jones detectivity and 26.11 mA/W responsivity at a −1 V bias. The response and recovery time of VTTBNc:PC71BM were recorded as 241 ms and 310 ms, respectively. The light absorption measurement demonstrated that VTTBNc could extend the light absorption to the near-infrared (NIR) region. The detail of the enhancement of the performance by adding VTTBNc to the blend was further explained in the discussion section.

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