Sigma-Aldrich IDT-2Br，≥99%

产品概述

非富勒烯受体（NFAs）是目前体异质结有机太阳能电池（OSC）的研究热点，与广泛使用的富勒烯受体（FAs）相比，NFAs的光学性质和电子能级可以设计和调节，具有更好的热稳定性和光化学稳定性，并具有更长的器件寿命，最近的发展已经导致NFA OSC的功率转换效率的快速增加，其值现在在单结电池中超过15%，并且对于串联电池>17%，这证明了在下一代高性能OSC中使用NFA代替FA的可行性。

应用领域

IDT-2BR is a medium-high bandgap nonfullerene acceptors (NFAs). It was reported that IDT-2BR could produce a high power conversion efficiency (PCE) of over 10% when used with low-bandgap p-type polymer PTB7-Th (Product No. 794333). A prominent feature of this blend is the very small energy loss (< 0.6 eV) in the cell, which allows for a very high open circuit voltages in the device (> 1 V).PMID 29983048
Ternary blend organic solar cells (OSCs) with photoresponses beyond 1000 nm can be fabricated using PTB7-Th as donor and ultralow-bandgap F8IC and medium-high bandgap IDT-2BR as NFAs. A PCE of 12.1% has been achieved by such a ternary device with 20% IDT-2BR content in acceptors.PMID 28102611 In this work, IDT-2BR was found to contribute simultanously to the improvement of the open-circuit voltage (VOC), short-circuit (JSC) and fill factor (FF) of the PTB7-Th/F8IC blend, due to smaller energy offset for charge separation, suppressed charge recombination, and imporved light absorption. Improved packing due to the coexsitence of F8IC and IDT-2BR leads to higher mobilities and more balanced charge transport, which contribute to the improved FF as well.
Additionaly, blends with IDT-2BR have been found to be thermally stable at 150 Celsius.
A ternary blend using both IDT-2BR and fullerene based acceptor: PC71BM (Product No. 684465) has also reached a PCE over 12%.

IDT-2BR是一种中-高禁带宽度的非富勒烯受主（NFAs），可作为p型掺杂剂用于制备p型有机半导体器件IDT-2Br在印刷电路板（PCB）生产中用作卤素阻燃添加剂，有助于提高PCB材料的阻燃性，确保其在使用过程中的安全性。它可以掺入到聚合物或小分子基光活性材料中，有助于光的吸收并促进OPV器件中的电荷产生。它在活性层中的存在有助于提高太阳能电池的光吸收和功率转换效率。cell.

技术规格