Solution-processable liquid crystalline chrysene semiconductors with wide band gap: Self-organization and carrier transport properties

2018 ◽  
Vol 63 ◽  
pp. 184-193 ◽  
Author(s):  
Tengzhou Yang ◽  
Fuhua Dai ◽  
Hiroaki Iino ◽  
Masayuki Kanehara ◽  
Xuying Liu ◽  
...  
Keyword(s):  
Transport Properties ◽  
Band Gap ◽  
Liquid Crystalline ◽  
Carrier Transport ◽  
Wide Band ◽  
Self Organization ◽  
Wide Band Gap ◽  
Solution Processable ◽  
Carrier Transport Properties

Transport Properties of Wide Band Gap Nanotubes

2006 ◽  
Author(s):  
G. Pennington ◽  
A. Akturk ◽  
J.M. McGarrity ◽  
N. Goldsman
Keyword(s):  
Transport Properties ◽  
Band Gap ◽  
Wide Band ◽  
Wide Band Gap

Simulation of Carrier Transport in Wide Band Gap Semiconductors

2001 ◽  
Vol 11 (02) ◽  
pp. 525-584 ◽  
Author(s):  
E. Bellotti ◽  
M. Farahmand ◽  
M. Goano ◽  
E. Ghillino ◽  
C. Garetto ◽  
...  
Keyword(s):  
Band Gap ◽  
Carrier Transport ◽  
Wide Band ◽  
Wide Band Gap ◽  
Wide Band Gap Semiconductors

Availability of Liquid Crystalline Materials for Organic Polycrystalline Semiconductor Thin Films

2006 ◽  
Vol 965 ◽  
Author(s):  
Hiroaki Iino ◽  
Jun-ichi Hanna
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Grain Boundaries ◽  
Transport Properties ◽  
Liquid Crystalline ◽  
Carrier Transport ◽  
Polycrystalline Films ◽  
Semiconductor Thin Films ◽  
Polycrystalline Semiconductor ◽  
Carrier Transport Properties

ABSTRACTWe have investigated the charge carrier transport properties of polycrystalline films fabricated with discotic and calamitic liquid crystals. The polycrystalline films of these liquid crystals exhibiting particular textures under a polarized microscope, i.e., hexagonal and co-circular patterns for discotic and calamitic liquid crystals, respectively, which indicate that the molecular alignment in the liquid crystalline phase is well preserved exhibit clear hole transport along with molecular stacks even in a 15 μm thick film, judging from transient photocurrents by time of flight method. The hole mobilities are over 0.1 cm2/Vs at room temperature. These results indicate formation of fewer grain boundaries across conduction channels. On the other hand, the carrier transport properties in the polycrystalline films of non-liquid crystalline molecules with the same molecular shape exhibit no particular patterns as described and photocurrents are annihilated in the bulk as a function of time, indicating many deep trap sites in grain boundaries. The present results indicate that the liquid crystalline molecule is a good candidate for preparing quality organic polycrystalline semiconductor thin films in opto-electronic applications.

Improving visible-light photoresponse characteristics of ZnO phototransistor via solution processable Li dopants

2021 ◽  
Author(s):  
Jun Hyung Jeong ◽  
Sungho Park ◽  
Byung Jun Kim ◽  
Su Been Heo ◽  
Tae Yeon Kim ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Ultraviolet Light ◽  
Wide Band ◽  
High Energy ◽  
Oxide Semiconductor ◽  
Wide Band Gap ◽  
Oxide Semiconductors ◽  
Solution Processable

The wide band gap of oxide semiconductors enables them to generate photocurrents through irradiation with high-energy photons, such as ultraviolet light. To enhance the photoresponsivity of an oxide semiconductor to...

Molecular design of benzothienobenzothiophene-cored columnar mesogens: facile synthesis, mesomorphism, and charge carrier mobility

2018 ◽  
Vol 6 (16) ◽  
pp. 4471-4478 ◽  
Author(s):  
Chun-Xia Liu ◽  
Hu Wang ◽  
Jun-Qi Du ◽  
Ke-Qing Zhao ◽  
Ping Hu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Transport Properties ◽  
Carrier Mobility ◽  
Liquid Crystalline ◽  
Carrier Transport ◽  
Molecular Design ◽  
Charge Carrier Mobility ◽  
Charge Carrier Transport ◽  
Facile Synthesis ◽  
Carrier Transport Properties

Benzothienobenzothiophene (BTBT) liquid-crystalline semiconductors are arousing a lot of interest due to their long-range ordered, self-organizational abilities and high-charge carrier transport properties.

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