56.3: Study of Space Charges in Hole Transfer Layer of OLED Devices using Impedance Spectroscopy and Transient Electroluminescence

2011 ◽  
Vol 42 (1) ◽  
pp. 825-828
Author(s):  
Jiyoung Choung ◽  
Joon G. Lee ◽  
Jin B. Choi ◽  
Il S. Oh ◽  
Se J. Cho ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Transfer Layer ◽  
Hole Transfer ◽  
Space Charges ◽  
Transient Electroluminescence

scholarly journals Effects of Au Nanoparticle Addition to Hole Transfer Layer in Organic Photovoltaic Cells Based on Phthalocyanines and Fullerene

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Akihiko Nagata ◽  
Takeo Oku ◽  
Tsuyoshi Akiyama ◽  
Atsushi Suzuki ◽  
Yasuhiro Yamasaki ◽  
...  
Keyword(s):  
Energy Levels ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Au Nanoparticle ◽  
Molecular Orbital Calculations ◽  
Organic Photovoltaic Cells ◽  
Transfer Layer ◽  
Hole Transfer ◽  
Transmission Electron ◽  
Conversion Efficiencies

Phthalocyanines/fullerene organic photovoltaic cells were fabricated and characterized. Effects of Au nanoparticle addition to a hole transfer layer were also investigated, and power conversion efficiencies of the photovoltaic cells were improved after blending the Au nanoparticle into PEDOT:PSS. Nanostructures of the Au nanoparticles were investigated by transmission electron microscopy and X-ray diffraction. Energy levels of molecules were calculated by molecular orbital calculations, and the nanostructures and electronic property were discussed.

scholarly journals Hole Transfer Layer Engineering for CdTe Nanocrystal Photovoltaics with Improved Efficiency

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1348 ◽  
Author(s):  
Yasi Jiang ◽  
Yiyang Pan ◽  
Wanhua Wu ◽  
Kaiying Luo ◽  
Zhitao Rong ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Annealing Temperature ◽  
Transfer Layer ◽  
Inverted Structure ◽  
Solution Processed ◽  
Hole Transfer ◽  
Carrier Recombination ◽  
Cdte Nanocrystal ◽  
Contact Electrode

Interface engineering has led to significant progress in solution-processed CdTe nanocrystal (NC) solar cells in recent years. High performance solar cells can be fabricated by introducing a hole transfer layer (HTL) between CdTe and a back contact electrode to reduce carrier recombination by forming interfacial dipole effect at the interface. Here, we report the usage of a commercial product 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro) as a hole transfer layer to facilitate the hole collecting for CdTe nanocrystal solar cells. It is found that heat treatment on the hole transfer layer has significant influence on the NC solar cells performance. The Jsc, Voc, and power conversion efficiency (PCE) of NC solar cells are simultaneously increased due to the decreased contact resistance and enhanced built-in electric field. We demonstrate solar cells that achieve a high PCE of 8.34% for solution-processed CdTe NC solar cells with an inverted structure by further optimizing the HTL annealing temperature, which is among the highest value in CdTe NC solar cells with the inverted structure.

scholarly journals A Study on the Development of Organic Thin Film Solar Cell Devicewith Optimized Hole Transfer Layer of PEDOT:PSS

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Paik-Kyun Shin ◽  
Kumar Palanisamy ◽  
Abhirami Kumar ◽  
Katsuhiko Kato ◽  
Shizuyasu Ochiai
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
Organic Thin Film ◽  
Transfer Layer ◽  
Hole Transfer

NiO nanowires as hole-transfer layer for drastic enhancement of CdSe-sensitized photocathodes

2019 ◽  
Vol 43 (10) ◽  
pp. 4075-4081
Author(s):  
Shuang Zhao ◽  
Yuming Dong ◽  
Guangli Wang ◽  
Pingping Jiang ◽  
Yuxia Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Transfer Rate ◽  
Capture Efficiency ◽  
Transfer Layer ◽  
Hole Transfer ◽  
Charge Transfer Rate ◽  
Light Capture

Grass-like NiO nanowires as a hole-transfer layer to improve light capture efficiency and charge transfer rate for a CdSe-sensitized photocathode.

Enhanced organic photovoltaic cells with MoOx nanorods as a hole transfer layer

2017 ◽  
Vol 654 (1) ◽  
pp. 17-21
Author(s):  
Jeong-Hwan Ahn ◽  
Joon-Sub Ahn ◽  
Myeong-Jun Jang ◽  
Eun-Mi Han
Keyword(s):  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells ◽  
Transfer Layer ◽  
Hole Transfer

Interface engineering via an insulating polymer for highly efficient and environmentally stable perovskite solar cells

2016 ◽  
Vol 52 (76) ◽  
pp. 11355-11358 ◽  
Author(s):  
Xiaoru Wen ◽  
Jiamin Wu ◽  
Meidan Ye ◽  
Di Gao ◽  
Changjian Lin
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Charge Recombination ◽  
Interface Engineering ◽  
Transfer Layer ◽  
Hole Transfer ◽  
Highly Efficient ◽  
First Time

A tunnelling contact of polystyrene nanofilm was firstly introduced for the first time at the interface of perovskite/hole transfer layer, leading to a significantly reduced charge recombination.

scholarly journals Epitaxial hetero-structure of CdSe/TiO2 nanotube arrays with PEDOT as a hole transfer layer for photoelectrochemical hydrogen evolution

2017 ◽  
Vol 5 (13) ◽  
pp. 6233-6244 ◽  
Author(s):  
Baohe Chong ◽  
Wen Zhu ◽  
Xianghui Hou
Keyword(s):  
Hydrogen Evolution ◽  
Fossil Fuel ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Photocatalytic Decomposition ◽  
Nanotube Arrays ◽  
Transfer Layer ◽  
Hole Transfer ◽  
Hetero Structure ◽  
Decomposition Of Water

The photocatalytic decomposition of water is believed to be able to help mitigate the crisis of fossil fuel depletion.

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