Results 161 to 170 of about 39,295 (204)

Electroluminescence in novel hole-transporting emissive materials

SPIE Proceedings, 2001
We have fabricated highly efficient organic light-emitting diodes (OLEDs) using novel hole-transporting emissive materials with triphenylamine moiety. The novel emissive materials have a high glass transition temperature ranging from 141 - 152 degrees Celsius, which is attributed to nonplanar molecular structure.
Shizuo Tokito, Koji Noda, Hisayoshi Fujikawa, Makoto Kimura, Kou Shimada, Yasuhiko Sawaki, Yasunori Taga   +6 more
openaire   +1 more source

Synthesis and Characterization of Hole-transport Materials in Polysiloxane

Molecular Crystals and Liquid Crystals, 2002
Triphenylamine(TPA) substituted polysiloxane was synthesized as the hole-transporting material. Field dependence of the hole mobility and photoconductivity were measured using the time-of flight and simple DC photocurrent measurement, respectively. We demonstrated that the film of polysiloxane with pendant TPA units higher hole mobility (3.2×10 −5 cm 2
Woong Sang Jahng, Jai Kyeong Kim, Ki Hong Park, Nakjoong Kim, Chul Joo Lee   +4 more
openaire   +1 more source

New hole transporting materials for planar perovskite solar cells

Chemical Communications, 2018
Two HTMs with triphenylamine and carbazole moieties for planar perovskite solar cells are designed, exhibiting 18.2% power conversion efficiency and better stability.
Dongmei Li, Jiang-Yang Shao, Yiming Li, Yusheng Li, Li-Ye Deng, Yu-Wu Zhong, Qingbo Meng   +6 more
openaire   +2 more sources

Hole transporting materials for perovskite solar cells: a chemical approach

Chemical Society Reviews, 2018
In this review, the contribution of chemistry towards producing new and innovative hole-transporting materials for highly efficient perovskite solar cells is presented in a rational and systematic manner.
Javier Urieta-Mora, Inés García-Benito, Agustín Molina-Ontoria, Nazario Martín   +3 more
openaire   +2 more sources

Theoretical insights into the effect of a conjugated core on the hole transport properties of hole-transporting materials for perovskite solar cells

Physical Chemistry Chemical Physics, 2017
An improved hole transport ability is obtained by introducing a conjugated core into the structure of HTMs.
Zemin Zhang, Weixia Hu, Jianyu Cui, Rongxing He, Wei Shen, Ming Li   +5 more
openaire   +2 more sources

Anthracene–arylamine hole transporting materials for perovskite solar cells

Chemical Communications, 2017
Novel anthracene–arylamine hole transporting materials achieved a power conversion efficiency over 17% for perovskite solar cells.
Xuepeng Liu, Fantai Kong, Rahim Ghadari, Shengli Jin, Ting Yu, Wangchao Chen, Guozhen Liu, Zhan'ao Tan, Jian Chen, Songyuan Dai   +9 more
openaire   +2 more sources

Simultaneous electron/hole transport in photorefractive materials

Journal of Applied Physics, 1986
The steady-state space-charge field and the response time of a photorefractive material illuminated with a sinusoidal interference pattern are derived for two models in which both electron and hole transport are important. In the first model in which electrons and holes are produced from a single set of recombination centers, the sign of the steady ...
openaire   +1 more source

Degradation of Hole Transport Materials via Exciton-Driven Cyclization

ACS Applied Materials & Interfaces, 2017
Organic light-emitting diode (OLED) displays have been an active and intense area of research for well over a decade and have now reached commercial success for displays from cell phones to large format televisions. A more thorough understanding of the many different potential degradation modes which cause OLED device failure will be necessary to ...
Bruce M. Bell, Michael B. Clark, David D. Devore, Timothy S. De Vries, Robert D. Froese, Kaitlyn C. Gray, David H. K. Jackson, T. F. Kuech, Hong-Yeop Na, Kenneth L. Kearns, Kyung-Joo Lee, Sukrit Mukhopadhyay, Aaron A. Rachford, Liam P. Spencer, W. H. Hunter Woodward   +14 more
openaire   +2 more sources

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

The Chemical Record, 2017
AbstractHole transporting material (HTM) is a significant component to achieve the high performance perovskite solar cells (PSCs). Over the years, inorganic, organic and hybrid (organic‐inorganic) material based HTMs have been developed and investigated successfully.
Ramireddy, Rajeswari, Madoori, Mrinalini, Seelam, Prasanthkumar, Lingamallu, Giribabu   +3 more
openaire   +2 more sources

Tetraphenylmethane‐Arylamine Hole‐Transporting Materials for Perovskite Solar Cells

ChemSusChem, 2017
AbstractA new class of hole‐transporting materials (HTM) containing tetraphenylmethane (TPM) core have been developed. After thermal, charge carrier mobility, and contact angle tests, it was found that TPA‐TPM (TPA: arylamine derivates side group) showed higher glass‐transition temperature and larger water‐contact angle than spiro‐OMeTAD with ...
Xuepeng, Liu, Fantai, Kong, Tai, Cheng, Wangchao, Chen, Zhan'ao, Tan, Ting, Yu, Fuling, Guo, Jian, Chen, Jianxi, Yao, Songyuan, Dai   +9 more
openaire   +2 more sources