Deuteration of Perylene Enhances Photochemical Upconversion Efficiency

被引：24

作者：

Danos, Andrew ^{[1
]}

MacQueen, Rowan W. ^{[1
]}

Cheng, Yuen Yap ^{[1
]}

Dvorak, Miroslav ^{[2
,5
]}

Darwish, Tamim A. ^{[3
]}

McCamey, Dane R. ^{[4
]}

Schmidt, Timothy W. ^{[1
]}

机构：

[1] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia

[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Phys Elect, Prague 18000, Czech Republic

[3] Australian Nucl Sci & Technol Org, Bragg Inst, Natl Deuterat Facil, Kirrawee Dc, NSW 2232, Australia

[4] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[5] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2015年 / 6卷 / 15期

基金：

澳大利亚研究理事会;

关键词：

TRIPLET-TRIPLET ANNIHILATION; LIGHT-EMITTING-DIODES; SILICON SOLAR-CELLS; AROMATIC-HYDROCARBONS; STATE; TEMPERATURE; TRANSITIONS; SENSITIZERS; NAPHTHALENE; MOLECULES;

D O I：

10.1021/acs.jpclett.5b01271

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photochemical upconversion via triplet-triplet annihilation is a promising technology for improving the efficiency of photovoltaic devices. Previous studies have shown that the efficiency of upconversion depends largely on two rate constants intrinsic to the emitting species. Here, we report that one of these rate constants can be altered by deuteration, leading to enhanced upconversion efficiency. For perylene, deuteration decreases the first order decay rate constant by 16 +/- 9% at 298 K, which increases the linear upconversion response by 45 +/- 21% in the low excitation regime.

引用

页码：3061 / 3066

页数：6

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