Organic Ternary Bulk Heterojunction Broadband Photodetectors Based on Nonfullerene Acceptors with a Spectral Response Range from 200 to 1050 nm

2021 ◽  
Author(s):  
Siyuan Weng ◽  
Man Zhao ◽  
Dayong Jiang
Keyword(s):  
Bulk Heterojunction ◽  
Spectral Response ◽  
Response Range ◽  
Ternary Bulk Heterojunction

Double dye cubic-sensitized solar cell based on Förster resonant energy transfer

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 10026-10032 ◽  
Author(s):  
Wenxia Li ◽  
Jingbo Zhang ◽  
Yingyu Cao ◽  
Yuan Lin
Keyword(s):  
Energy Transfer ◽  
Spectral Response ◽  
Dye Sensitized Solar Cells ◽  
Eosin Y ◽  
Zno Thin Film ◽  
Resonant Energy ◽  
Dye Sensitized ◽  
Response Range ◽  
Resonant Energy Transfer ◽  
Sensitized Solar Cells

To extend the spectral response range of dye-sensitized solar cells through Förster resonant energy transfer, eosin Y and rhodamine B were chosen as an donor and a acceptor to cubic-sensitize nanocrystalline ZnO thin film.

Photomultiplication type organic photodetectors with tunable spectral response range

2019 ◽  
Vol 69 ◽  
pp. 354-360 ◽  
Author(s):  
Zijin Zhao ◽  
Jian Wang ◽  
Jianli Miao ◽  
Fujun Zhang
Keyword(s):  
Spectral Response ◽  
Response Range ◽  
Organic Photodetectors

scholarly journals Manganite Heterojunction Photodetector with Broad Spectral Response Range from 200 nm to 2 μm

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 129
Author(s):  
Ru Chen ◽  
Zhiqing Lu ◽  
Kun Zhao
Keyword(s):  
Size Effect ◽  
Transition Point ◽  
Spectral Response ◽  
Visible Range ◽  
Oxide Heterostructures ◽  
Junction Resistance ◽  
Quantum Size ◽  
Microelectronic Devices ◽  
Response Range ◽  
Infrared Photodetection

In this paper, we investigate the broad spectral photocurrent properties of the La0.67Ca0.33MnO3/Si (LCMO/Si) heterojunction from 200 nm to 2.0 μm, as the temperature increases from 95 to 300 K. We observed the junction’s uniform responsivity in the visible range and five absorption peaks at 940 nm, 1180 nm, 1380 nm, 1580 nm, and 1900 nm wavelengths. The temperature showed effective affection to the photocurrents at absorption peaks and the transition point occurred at 216 K, which was also displayed in the temperature dependence of junction resistance. On the basis of the results, we propose a possible model involving the quantum size effect at the junction interface as the mechanism. This understanding of the infrared photodetection properties of oxide heterostructures should open a route for devising future microelectronic devices.

Erasable memory properties of spectral selectivity modulated by temperature and bias in an individual CdS nanobelt-based photodetector

2019 ◽  
Vol 4 (1) ◽  
pp. 138-147 ◽  
Author(s):  
Tao Tong ◽  
Shujuan Wang ◽  
Jie Zhao ◽  
Baochang Cheng ◽  
Yanhe Xiao ◽  
...  
Keyword(s):  
Spectral Response ◽  
High Response ◽  
Bandgap Energy ◽  
Spectral Selectivity ◽  
Response Range

Single CdS nanobelt-based photodetectors show an ultra-high response to light close to the bandgap energy at large bias, and moreover their spectral response range selectivity to above- and below-bandgap light can show an reversable memory by temperature-writing and bias-erasing.

scholarly journals Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Scanning ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Liu Han ◽  
Haohao Dong ◽  
Dong Mao ◽  
Baolv Hua ◽  
Qinyu Li ◽  
...  
Keyword(s):  
Carbon Nanofiber ◽  
Diffuse Reflectance Spectroscopy ◽  
Spectral Response ◽  
Heterogeneous Systems ◽  
Indium Sulfide ◽  
One Pot ◽  
One Dimensional ◽  
Response Range ◽  
Uv Visible ◽  
The One

Heterojunction system has been proved as one of the best architectures for photocatalyst owing to extending specific surface area, expanding spectral response range, and increasing photoinduced charges generation, separation, and transmission, which can provide better light absorption range and higher reaction site. In this paper, Indium Sulfide/Flexible Electrospun Carbon Nanofiber (In2S3/CNF) heterogeneous systems were synthesized by a facile one-pot hydrothermal method. The results from characterizations of SEM, TEM, XRD, Raman, and UV-visible diffuse reflectance spectroscopy displayed that flower-like In2S3 was deposited on the hair-like CNF template, forming a one-dimensional nanofibrous network heterojunction photocatalyst. And the newly prepared In2S3/CNF photocatalysts exhibit greatly enhanced photocatalytic activity compared to pure In2S3. In addition, the formation mechanism of the one-dimensional heterojunction In2S3/CNF photocatalyst is discussed and a promising approach to degrade Rhodamine B (RB) in the photocatalytic process is processed.

Preparation and photocatalytic activity of pendant heteroaryl groups (pyrimidine and pyridine) grafted polyterthiophene/TiO2 composites

2020 ◽  
Vol 10 (11) ◽  
pp. 1877-1891
Author(s):  
Yingcheng Liu ◽  
Abdukeyum Abdurexit ◽  
Ruxangul Jamal ◽  
Wenli Zhang ◽  
Yinqiang Yan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Structural Analysis ◽  
Uv Light ◽  
Spectral Response ◽  
Solar Irradiation ◽  
Molar Ratio ◽  
Response Range ◽  
Non Covalent Interactions ◽  
Simulated Solar Irradiation ◽  
Covalent Interactions

In this paper, new π-conjugated heterocyclic systems with pyrimidine- and pyridine-grafted polyterthiophene were combined with TiO2 to obtain composite materials (PDTPrT/TiO2 and PDTPrmT/TiO2). The photocatalytic properties of the composites were tested by using them to degrade MB using UV-light and simulated solar irradiation. The structural analysis revealed that the pyrimidine and pyridine groups in the polyterthiophenes interacted with TiO2 via non-covalent interactions. The combination of the substituted polyterthiophene and TiO2 restrained the recombination rate of photogenerated e-?h+ pairs and broadened the spectral response range of TiO2. The results indicated that PDTPrT/TiO2 and PDTPrmT/TiO2 with a TiO2-to-monomer molar ratio of 75 had the highest photodegradation rates under UV light (98.6% and 97.4%, respectively after 10 min) and simulated solar (95.4% and 92.7%, respectively after 300 min).

Near IR Sensitization of Organic Bulk Heterojunction Solar Cells: Towards Optimization of the Spectral Response of Organic Solar Cells

2010 ◽  
Vol 20 (2) ◽  
pp. 338-346 ◽  
Author(s):  
Markus Koppe ◽  
Hans-Joachim Egelhaaf ◽  
Gilles Dennler ◽  
Markus C. Scharber ◽  
Christoph J. Brabec ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Spectral Response ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Near Ir
Sign in / Sign up

Export Citation Format

Share Document