Solution-processable, crystalline material for quantitative singlet fission,Materials Horizons

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Solution-processable, crystalline material for quantitative singlet fission
Materials Horizons ( IF 12.2 ) Pub Date : 2017-08-10 00:00:00 , DOI: 10.1039/c7mh00303j
Ryan D. Pensack _{1,

2,

3,

4} , Christopher Grieco _{1,

4,

5,

6} , Geoffrey E. Purdum _{2,

3,

4,

7} , Samuel M. Mazza _{1,

4,

8,

9} , Andrew J. Tilley _{1,

10,

11,

12} , Evgeny E. Ostroumov _{1,

2,

3,

4} , Dwight S. Seferos _{1,

10,

11,

12} , Yueh-Lin Loo _{2,

3,

4,

7,

13} , John B. Asbury _{1,

4,

5,

6} , John E. Anthony _{1,

4,

8,

9} , Gregory D. Scholes _{1,

2,

3,

4}

Affiliation

Amorphous nanoparticles of the singlet fission chromophore 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-Pn) are fully crystallized through co-precipitation with a chemical additive. Time-resolved measurements indicate that singlet fission in the crystalline nanoparticles is quantitative, or lossless, whereas losses are evident in the amorphous nanoparticles as a result of frustrated triplet pair separation. Because triplet pairs form rapidly and separate slowly in amorphous material, mixed-phase samples are unable to compensate for these losses.

中文翻译：

可固溶处理的结晶材料，用于定量单重裂变

单峰裂变生色团6,13-双（三异丙基甲硅烷基乙炔基）并五苯（TIPS-Pn）的无定形纳米粒子通过与化学添加剂的共沉淀而完全结晶。时间分辨的测量结果表明，结晶纳米颗粒中的单线态裂变是定量的或无损的，而无定形纳米颗粒中由于三重态对分离的失败而导致的损失明显。由于三重态对在非晶态材料中快速形成并缓慢分离，因此混合相样品无法补偿这些损耗。

更新日期：2017-08-29

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