scholarly journals A Solution-Processed Tetra-Alkoxylated Zinc Phthalocyanine as Hole Transporting Material for Emerging Photovoltaic Technologies

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Gloria Zanotti ◽  
Giuseppe Mattioli ◽  
Anna Maria Paoletti ◽  
Giovanna Pennesi ◽  
Daniela Caschera ◽  
...  

A tetra-n-butoxy zinc phthalocyanine (n-BuO)4ZnPc has been synthesized in a single step, starting from commercial precursors, and easily purified. The molecule can be solution processed to form an effective and inexpensive hole transport layer for organic and perovskite solar cells. These appealing features are suggested by the results of a series of chemical, optical, and voltammetric characterizations of the molecule, supported by the results of ab initio simulations. Preliminary measurements of (n-BuO)4ZnPc-methylammonium lead triiodide perovskite-based devices confirm such suggestion and indicate that the interface between the photoactive layer and the hole transporting layer is characterized by hole-extracting and electron-blocking properties, potentially competitive with those of other standards de facto in the field of organic hole transport materials, like the expensive Spiro-OMeTAD.

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19586-19594 ◽  
Author(s):  
Hannah Kwon ◽  
Ju Won Lim ◽  
Jinyoung Han ◽  
Li Na Quan ◽  
Dawoon Kim ◽  
...  

Designing an efficient and stable hole transport layer (HTL) material is one of the essential ways to improve the performance of organic–inorganic perovskite solar cells (PSCs).


2019 ◽  
Vol 7 (11) ◽  
pp. 5934-5937 ◽  
Author(s):  
Po-Han Lin ◽  
Kun-Mu Lee ◽  
Chang-Chieh Ting ◽  
Ching-Yuan Liu

Perovskite solar cells using a new spirobifluorene core-based oligoaryl as the hole-transport layer display 18.6% efficiency without any device oxidation process.


2016 ◽  
Vol 145 ◽  
pp. 193-199 ◽  
Author(s):  
Ashish Dubey ◽  
Nirmal Adhikari ◽  
Swaminathan Venkatesan ◽  
Shaopeng Gu ◽  
Devendra Khatiwada ◽  
...  

2019 ◽  
Vol 12 (01) ◽  
pp. 1850088 ◽  
Author(s):  
Weina Zhang ◽  
Jie Tang ◽  
Jihuai Wu ◽  
Zhang Lan

Due to the rough surface of fluorine-doped tin oxide (FTO) conductive glasses, it is challenging to fabricate fully covered ultra-thin hole-transport layer (HTL) with thickness under 100[Formula: see text]nm by a simple solution-processed method. Yet, the quality of HTLs play a key role in determining photovoltaic performance of the inverted planar perovskite solar cells (PSCs) owing to their important functions for effectively extracting holes, blocking electrons, suppressing dark reaction, and so on. Here, we report a facile nickel-containing organic sol (Ni–Sol) route to fabricate fully covered 46[Formula: see text]nm thick NiO HTLs for efficient inverted planar PSCs. Comparing with the pre-synthesized NiO nanocrystals solution, the Ni–Sol is easier to spread around the rough outline of FTO to achieve higher surface coverage. Through optimizing the concentration of nickel-containing organic sol, the champion performance of the inverted planar PSCs can be achieved because of the high transparency and good hole-transport dynamics of the optimized NiO film. This work demonstrates the advanced Ni–Sol route for preparing efficient inverted planar PSCs by the simple solution-processed method.


2018 ◽  
Vol 6 (23) ◽  
pp. 6250-6256 ◽  
Author(s):  
Kisu Lee ◽  
Haejun Yu ◽  
Jong Woo Lee ◽  
Jungkyun Oh ◽  
Sohyeon Bae ◽  
...  

Polyaniline doped with camphorsulfonic acid (PANI-CSA) was successfully utilized as a hole transport layer to realize efficient and stable perovskite solar cells.


Nanoscale ◽  
2016 ◽  
Vol 8 (35) ◽  
pp. 15954-15960 ◽  
Author(s):  
Weihai Sun ◽  
Senyun Ye ◽  
Haixiao Rao ◽  
Yunlong Li ◽  
Zhiwei Liu ◽  
...  

Solar Energy ◽  
2018 ◽  
Vol 174 ◽  
pp. 1133-1141 ◽  
Author(s):  
Jiankai Zhang ◽  
Wujian Mao ◽  
Xian Hou ◽  
Jiaji Duan ◽  
Jianping Zhou ◽  
...  

2000 ◽  
Vol 621 ◽  
Author(s):  
Hisayoshi Fujikawa ◽  
Masahiko Ishii ◽  
Shizuo Tokito ◽  
Yasunori Taga

ABSTRACTThe durability of the tris(8-quinolinolato) aluminum based light-emitting diode (LED) is related to the thermal stability of the hole transport layer. Several linear linkage triphenylamine oligomers were used for the hole transport layer. The thermal stability was clearly seen to depend on a glass transition temperature (Tg) of the hole transporting material, and a linear relationship between the Tg and the thermal stability was found. A lowering of “turn-on voltage” for light emission and an increase of luminous efficiency with increasing temperature was also observed. Excellent durability of the organic LED with a tetramer of triphenylamine was achieved at a high temperature of 120°C. Our results indicate that the linear linkage of triphenylamine leads to a high Tg and high device performance at high temperatures.


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