226 nm AlGaN/AlN UV LEDs using p-type Si for hole injection and UV reflection

2018 ◽  
Vol 113 (1) ◽  
pp. 011111 ◽  
Author(s):  
Dong Liu ◽  
Sang June Cho ◽  
Jeongpil Park ◽  
Jiarui Gong ◽  
Jung-Hun Seo ◽  
...  
Keyword(s):  
Hole Injection ◽  
P Type ◽  
Uv Leds ◽  
Uv Reflection

scholarly journals 229 nm UV LEDs on aluminum nitride single crystal substrates using p-type silicon for increased hole injection

2018 ◽  
Vol 112 (8) ◽  
pp. 081101 ◽  
Author(s):  
Dong Liu ◽  
Sang June Cho ◽  
Jeongpil Park ◽  
Jung-Hun Seo ◽  
Rafael Dalmau ◽  
...  
Keyword(s):  
Aluminum Nitride ◽  
Single Crystal ◽  
Hole Injection ◽  
Type Silicon ◽  
P Type ◽  
Uv Leds

Effective performance improvement of organic thin film transistors with multi-layer modifications

2020 ◽  
Vol 91 (3) ◽  
pp. 30201
Author(s):  
Hang Yu ◽  
Jianlin Zhou ◽  
Yuanyuan Hao ◽  
Yao Ni
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Performance Enhancement ◽  
Organic Thin Film Transistors ◽  
Electrical Performance ◽  
Hole Injection ◽  
Organic Thin Film ◽  
Effective Performance ◽  
Significant Performance ◽  
P Type

Organic thin film transistors (OTFTs) based on dioctylbenzothienobenzothiophene (C8BTBT) and copper (Cu) electrodes were fabricated. For improving the electrical performance of the original devices, the different modifications were attempted to insert in three different positions including semiconductor/electrode interface, semiconductor bulk inside and semiconductor/insulator interface. In detail, 4,4′,4′′-tris[3-methylpheny(phenyl)amino] triphenylamine (m-MTDATA) was applied between C8BTBTand Cu electrodes as hole injection layer (HIL). Moreover, the fluorinated copper phthalo-cyanine (F16CuPc) was inserted in C8BTBT/SiO2 interface to form F16CuPc/C8BTBT heterojunction or C8BTBT bulk to form C8BTBT/F16CuPc/C8BTBT sandwich configuration. Our experiment shows that, the sandwich structured OTFTs have a significant performance enhancement when appropriate thickness modification is chosen, comparing with original C8BTBT devices. Then, even the low work function metal Cu was applied, a normal p-type operate-mode C8BTBT-OTFT with mobility as high as 2.56 cm2/Vs has been fabricated.

scholarly journals Large Area Emission in p-Type Polymer-Based Light-Emitting Field-Effect Transistors by Incorporating Charge Injection Interlayers

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 901
Author(s):  
Gizem Acar ◽  
Muhammad Javaid Iqbal ◽  
Mujeeb Ullah Chaudhry
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Charge Injection ◽  
Limiting Factors ◽  
Hole Injection ◽  
Large Area ◽  
Device Structure ◽  
Light Emitting ◽  
Emission Area ◽  
P Type

Organic light-emitting field-effect transistors (LEFETs) provide the possibility of simplifying the display pixilation design as they integrate the drive-transistor and the light emission in a single architecture. However, in p-type LEFETs, simultaneously achieving higher external quantum efficiency (EQE) at higher brightness, larger and stable emission area, and high switching speed are the limiting factors for to realise their applications. Herein, we present a p-type polymer heterostructure-based LEFET architecture with electron and hole injection interlayers to improve the charge injection into the light-emitting layer, which leads to better recombination. This device structure provides access to hole mobility of ~2.1 cm2 V−1 s−1 and EQE of 1.6% at a luminance of 2600 cd m−2. Most importantly, we observed a large area emission under the entire drain electrode, which was spatially stable (emission area is not dependent on the gate voltage and current density). These results show an important advancement in polymer-based LEFET technology toward realizing new digital display applications.

scholarly journals Superlattice hole injection layers for UV LEDs grown on SiC

2020 ◽  
Vol 10 (9) ◽  
pp. 2171
Author(s):  
Christian J. Zollner ◽  
Abdullah S. Almogbel ◽  
Yifan Yao ◽  
Michael Wang ◽  
Michael Iza ◽  
...  
Keyword(s):  
Hole Injection ◽  
Uv Leds

P‐type Sb‐doped Cu 2 O Hole Injection Layer Integrated on Transparent ITO Electrode for Acidic PEDOT:PSS‐Free Quantum Dot Light Emitting Diodes

2019 ◽  
Vol 216 (11) ◽  
pp. 1900004 ◽  
Author(s):  
Hyeong‐Jin Seo ◽  
Ji‐Eun Lee ◽  
Su Been Heo ◽  
Minju Kim ◽  
Yeonjin Yi ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Hole Injection ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Ito Electrode ◽  
P Type
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