scholarly journals Intrinsic Polarization and Tunable Color of Electroluminescence from Organic Single Crystal-based Light-Emitting Devices

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Ran Ding ◽  
Jing Feng ◽  
Wei Zhou ◽  
Xu-Lin Zhang ◽  
Hong-Hua Fang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Intrinsic Polarization ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Single Crystal

Highly Efficient Three Primary Color Organic Single-Crystal Light-Emitting Devices with Balanced Carrier Injection and Transport

2017 ◽  
Vol 27 (13) ◽  
pp. 1604659 ◽  
Author(s):  
Ran Ding ◽  
Jing Feng ◽  
Feng-Xi Dong ◽  
Wei Zhou ◽  
Yang Liu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Carrier Injection ◽  
Light Emitting ◽  
Primary Color ◽  
Light Emitting Devices ◽  
Highly Efficient ◽  
Organic Single Crystal

scholarly journals Organic single crystal-based light-emitting devices by template stripping technique

2015 ◽  
Vol 61 (10) ◽  
pp. 1135-1140
Author(s):  
Jing FENG ◽  
Ran DING ◽  
Wei ZHOU ◽  
FengXi DONG
Keyword(s):  
Single Crystal ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Single Crystal ◽  
Template Stripping

scholarly journals Intrinsically Polarized Emission from Organic Single-Crystal Light Emitting Devices with Record Polarization Ratio of 176

Optica ◽  
2021 ◽  
Author(s):  
Ming-Hui An ◽  
Ran Ding ◽  
Xu-Lin Zhang ◽  
Shuo-Nan Chen ◽  
Yanan Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Polarization Ratio ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Single Crystal ◽  
Polarized Emission

Design principle of high-performance organic single-crystal light-emitting devices

2018 ◽  
Vol 123 (23) ◽  
pp. 235501 ◽  
Author(s):  
Takeshi Yamao ◽  
Shohei Higashihara ◽  
Shusuke Yamashita ◽  
Hiroyuki Sano ◽  
Yuhi Inada ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Design Principle ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Single Crystal

scholarly journals Sub–turn-on exciton quenching due to molecular orientation and polarization in organic light-emitting devices

2020 ◽  
Vol 6 (32) ◽  
pp. eabb2659
Author(s):  
John S. Bangsund ◽  
Jack R. Van Sambeek ◽  
Nolan M. Concannon ◽  
Russell J. Holmes
Keyword(s):  
Transport Layer ◽  
Electron Transport Layer ◽  
Intrinsic Polarization ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Turn On ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Lock In ◽  
Selection Of

The efficiency of organic light-emitting devices (OLEDs) is often limited by roll-off, where efficiency decreases with increasing bias. In most OLEDs, roll-off primarily occurs due to exciton quenching, which is commonly assumed to be active only above device turn-on. Below turn-on, exciton and charge carrier densities are often presumed to be too small to cause quenching. Using lock-in detection of photoluminescence, we find that this assumption is not generally valid; luminescence can be quenched by >20% at biases below turn-on. We show that this low-bias quenching is due to hole accumulation induced by intrinsic polarization of the electron transport layer (ETL). Further, we demonstrate that selection of nonpolar ETLs or heating during deposition minimizes these losses, leading to efficiency enhancements of >15%. These results reveal design rules to optimize efficiency, clarify how ultrastable glasses improve OLED performance, and demonstrate the importance of quantifying exciton quenching at low bias.

In Situ Inkjet Printing of the Perovskite Single-Crystal Array-Embedded Polydimethylsiloxane Film for Wearable Light-Emitting Devices

2020 ◽  
Vol 12 (19) ◽  
pp. 22157-22162 ◽  
Author(s):  
Zhenkun Gu ◽  
Zhandong Huang ◽  
Xiaotian Hu ◽  
Ying Wang ◽  
Lihong Li ◽  
...  
Keyword(s):  
Single Crystal ◽  
Inkjet Printing ◽  
Light Emitting ◽  
Light Emitting Devices
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