Organic Clusters with Time-Dependent Color-Tunable Dual Persistent Room-Temperature Phosphorescence

2021 ◽  
Author(s):  
Zijian Chen ◽  
Mengke Li ◽  
Weidong Qiu ◽  
Wentao Xie ◽  
Qing Gu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Time Dependent ◽  
Room Temperature Phosphorescence ◽  
Color Tunable ◽  
Tunable Emission

Luminescence from organic clusters has gained increasing interests recently because of their distinct emission characters in compared with the monomer, such as color tunable emission with different wavelength excitation. Herein,...

scholarly journals Stable and color tunable emission properties based on non-cyclometalated gold(iii) complexes

2015 ◽  
Vol 44 (21) ◽  
pp. 10003-10013 ◽  
Author(s):  
Michael Bachmann ◽  
Olivier Blacque ◽  
Koushik Venkatesan
Keyword(s):  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Emission Properties ◽  
Color Tunable ◽  
Tunable Emission

Room temperature phosphorescence based on non-cyclometalated gold(iii) complexes with readily tunable emission properties is demonstrated.

DNA Inspirited Rational Construction of Nonconventional Luminophores with Efficient and Color-Tunable Afterglow

2020 ◽  
Author(s):  
Yunzhong Wang ◽  
Saixing Tang ◽  
Yating Wen ◽  
Shuyuan Zheng ◽  
Bing Yang ◽  
...  
Keyword(s):  
Rational Design ◽  
Room Temperature ◽  
Double Helix ◽  
Mechanical Grinding ◽  
Room Temperature Phosphorescence ◽  
Color Tunable ◽  
Potential Applications ◽  
Rational Construction ◽  
Double Helix Structure ◽  
Made In

<div>Persistent room-temperature phosphorescence (p-RTP) from pure organics is attractive </div><div>due to its fundamental importance and potential applications in molecular imaging, </div><div>sensing, encryption, anticounterfeiting, etc.1-4 Recently, efforts have been also made in </div><div>obtaining color-tunable p-RTP in aromatic phosphors5 and nonconjugated polymers6,7. </div><div>The origin of color-tunable p-RTP and the rational design of such luminogens, </div><div>particularly those with explicit structure and molecular packing, remain challenging. </div><div>Noteworthily, nonconventional luminophores without significant conjugations generally </div><div>possess excitation-dependent photoluminescence (PL) because of the coexistence of </div><div>diverse clustered chromophores6,8, which strongly implicates the possibility to achieve </div><div>color-tunable p-RTP from their molecular crystals assisted by effective intermolecular </div><div>interactions. Here, inspirited by the highly stable double-helix structure and multiple </div><div>hydrogen bonds in DNA, we reported a series of nonconventional luminophores based on </div><div>hydantoin (HA), which demonstrate excitation-dependent PL and color-tunable p-RTP </div><div>from sky-blue to yellowish-green, accompanying unprecedentedly high PL and p-RTP </div><div>efficiencies of up to 87.5% and 21.8%, respectively. Meanwhile, the p-RTP emissions are </div><div>resistant to vigorous mechanical grinding, with lifetimes of up to 1.74 s. Such robust, </div><div>color-tunable and highly efficient p-RTP render the luminophores promising for varying </div><div>applications. These findings provide mechanism insights into the origin of color-tunable </div><div>p-RTP, and surely advance the exploitation of efficient nonconventional luminophores.</div>

scholarly journals A Facile Co-crystallization Approach to Fabricate Two-component Carbon Dots Composites Showing Time-Dependent Evolutive Room Temperature Phosphorescence Colors

2021 ◽  
Author(s):  
Jian Qu ◽  
Xin Zhang ◽  
Zhong-Jie Wang ◽  
Shuyan Zhang ◽  
Yejian Yu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Room Temperature ◽  
Data Encryption ◽  
Time Dependent ◽  
Security Level ◽  
Room Temperature Phosphorescence ◽  
Two Component ◽  
Carbon Based

Time-dependent evolutive afterglow materials can increase the security level by providing additional encryption modes in anti-counterfeiting and data encryption. The design of carbon-based materials with dynamic afterglow colors is attractive...

Thermal Recording: Reversible Thermal Recording Media Using Time-Dependent Persistent Room Temperature Phosphorescence (Advanced Optical Materials 6/2013)

2013 ◽  
Vol 1 (6) ◽  
pp. 411-411
Author(s):  
Shuzo Hirata ◽  
Kenro Totani ◽  
Hironori Kaji ◽  
Martin Vacha ◽  
Toshiyuki Watanabe ◽  
...  
Keyword(s):  
Optical Materials ◽  
Room Temperature ◽  
Time Dependent ◽  
Recording Media ◽  
Room Temperature Phosphorescence

Tunable room temperature phosphorescence and energy transfer in ratiometric co-crystals

2020 ◽  
Vol 56 (56) ◽  
pp. 7698-7701 ◽  
Author(s):  
Bo Zhou ◽  
Qihang Zhao ◽  
Longchang Tang ◽  
Dongpeng Yan
Keyword(s):  
Energy Transfer ◽  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Color Tunable

Color-tunable green and yellow room temperature phosphorescence is realized through a ratiometric co-crystal strategy.

DNA Inspirited Rational Construction of Nonconventional Luminophores with Efficient and Color-Tunable Afterglow

2020 ◽  
Author(s):  
Yunzhong Wang ◽  
Saixing Tang ◽  
Yating Wen ◽  
Shuyuan Zheng ◽  
Bing Yang ◽  
...  
Keyword(s):  
Rational Design ◽  
Room Temperature ◽  
Double Helix ◽  
Mechanical Grinding ◽  
Room Temperature Phosphorescence ◽  
Color Tunable ◽  
Potential Applications ◽  
Rational Construction ◽  
Double Helix Structure ◽  
Made In

<div>Persistent room-temperature phosphorescence (p-RTP) from pure organics is attractive </div><div>due to its fundamental importance and potential applications in molecular imaging, </div><div>sensing, encryption, anticounterfeiting, etc.1-4 Recently, efforts have been also made in </div><div>obtaining color-tunable p-RTP in aromatic phosphors5 and nonconjugated polymers6,7. </div><div>The origin of color-tunable p-RTP and the rational design of such luminogens, </div><div>particularly those with explicit structure and molecular packing, remain challenging. </div><div>Noteworthily, nonconventional luminophores without significant conjugations generally </div><div>possess excitation-dependent photoluminescence (PL) because of the coexistence of </div><div>diverse clustered chromophores6,8, which strongly implicates the possibility to achieve </div><div>color-tunable p-RTP from their molecular crystals assisted by effective intermolecular </div><div>interactions. Here, inspirited by the highly stable double-helix structure and multiple </div><div>hydrogen bonds in DNA, we reported a series of nonconventional luminophores based on </div><div>hydantoin (HA), which demonstrate excitation-dependent PL and color-tunable p-RTP </div><div>from sky-blue to yellowish-green, accompanying unprecedentedly high PL and p-RTP </div><div>efficiencies of up to 87.5% and 21.8%, respectively. Meanwhile, the p-RTP emissions are </div><div>resistant to vigorous mechanical grinding, with lifetimes of up to 1.74 s. Such robust, </div><div>color-tunable and highly efficient p-RTP render the luminophores promising for varying </div><div>applications. These findings provide mechanism insights into the origin of color-tunable </div><div>p-RTP, and surely advance the exploitation of efficient nonconventional luminophores.</div>

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