scholarly journals Photoexcitation of PbS nanosheets leads to highly mobile charge carriers and stable excitons

Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21569-21576 ◽  
Author(s):  
Jannika Lauth ◽  
Michele Failla ◽  
Eugen Klein ◽  
Christian Klinke ◽  
Sachin Kinge ◽  
...  

Colloidal two-dimensional (2D) PbS nanosheets exhibit stable excitons and highly mobile charge carriers (500–1000 cm2 V−1 s−1) rendering solution-processed nanomaterials suitable for ultrathin optoelectronics.

2018 ◽  
Vol 9 (19) ◽  
pp. 4468-4476 ◽  
Author(s):  
Ajay Jha ◽  
Hong-Guang Duan ◽  
Vandana Tiwari ◽  
Michael Thorwart ◽  
R. J. Dwayne Miller

We have employed two-dimensional electronic spectroscopy to reveal detrimental electronic coupling among the ions in precursor solution of molecular-doped polymer, which are retained to the processed films. This memory effect renders the charge carriers to be bound resulting into poor doping efficiency.


2021 ◽  
pp. 2100193
Author(s):  
Peng Liu ◽  
Bingqian Zhang ◽  
Qing Liao ◽  
Guifen Tian ◽  
Chunling Gu ◽  
...  

2021 ◽  
Author(s):  
Sebastiano Bellani ◽  
Antonino Bartolotta ◽  
Antonio Agresti ◽  
Giuseppe Calogero ◽  
Giulia Grancini ◽  
...  

Solution-processed graphene and related two-dimensional materials enable the next-generation photovoltaics.


2018 ◽  
Vol 6 (19) ◽  
pp. 9132-9138 ◽  
Author(s):  
Guannan Yin ◽  
Huan Zhao ◽  
Jiangshan Feng ◽  
Jie Sun ◽  
Junqing Yan ◽  
...  

In this paper, it is demonstrated that two-dimensional TiS2 nanosheets can be applied as an effective ETL in planar PSCs for the first time.


Author(s):  
Guokeng Liu ◽  
Chunyang Jin ◽  
Binlai Hu ◽  
Lihua Zhang ◽  
Guozheng Zeng ◽  
...  

The remarkable properties of layered semiconductor nanosheets (LSNs), such as scalable production, bandgap tunability and mechanical flexibility have promoted them as promising building blocks for nanoelectronics and bioelectronics. However, it...


Catalysts ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 787 ◽  
Author(s):  
Yun Yeol Ryu ◽  
Taekyung Kim ◽  
HyukSu Han

Zinc oxide (ZnO) has attractive photocatalytic properties. However, the high recombination rate of the photo-excited charge carriers on this material often restricts application. Here, we report that hybridization of one dimensional (1D) carbon nanotubes (CNT) on two dimensional (2D) porous ZnO nanosheets (NS) can be a promising strategy to overcome some of the challenges of ZnO. Specifically, a pulsed laser ablation technique was utilized to hybridize 1D CNT with 2D porous ZnO NS in environmentally friendly as well as super-economic (short time, less than 10 min) conditions. The synthesized ZnO NS-CNT hybrids show a significantly enhanced photocatalytic activity for water splitting relative to their counterpart ZnO NS.


2017 ◽  
Vol 5 (23) ◽  
pp. 5610-5627 ◽  
Author(s):  
Jakub Jagielski ◽  
Sudhir Kumar ◽  
Wen-Yueh Yu ◽  
Chih-Jen Shih

Solution-processed layered-controlled 2D metal halide perovskites are emerging as one of the most promising candidates for low-cost photovoltaics and optoelectronics.


2017 ◽  
Vol 19 (27) ◽  
pp. 17560-17567 ◽  
Author(s):  
Tongzhou Wang ◽  
Congcong Liu ◽  
Fengxing Jiang ◽  
Zhaofen Xu ◽  
Xiaodong Wang ◽  
...  

The content of rGO could alter the carrier transport barrier, and the optimizing power factor was achieved at rGO–MS2 junctions.


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