Photoinduced electrical response in quantum dots/graphene hybrid structure

2015 ◽  
Vol 118 (10) ◽  
pp. 104305 ◽  
Author(s):  
Yu. Gromova ◽  
A. Alaferdov ◽  
S. Rackauskas ◽  
V. Ermakov ◽  
A. Orlova ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrical Response ◽  
Hybrid Structure

Red/green/blue selective phototransistors with a hybrid structure of quantum-dots and an oxide semiconductor

2018 ◽  
Vol 57 (4) ◽  
pp. 044001 ◽  
Author(s):  
Jiin Yu ◽  
Byung Jun Kim ◽  
Sungho Park ◽  
Il Ki Han ◽  
Seong Jun Kang
Keyword(s):  
Quantum Dots ◽  
Hybrid Structure ◽  
Oxide Semiconductor

scholarly journals Interfacially Bound Exciton State in a Hybrid Structure of Monolayer WS2 and InGaN Quantum Dots

Nano Letters ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 5640-5645 ◽  
Author(s):  
Guanghui Cheng ◽  
Baikui Li ◽  
Chunyu Zhao ◽  
Xin Yan ◽  
Hong Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Exciton State ◽  
Hybrid Structure

Flexible broadband photodetectors enabled by MXene/PbS quantum dots hybrid structure

2021 ◽  
pp. 1-1
Author(s):  
Yilin Sun ◽  
Zhifang Liu ◽  
Yingtao Ding ◽  
Zhiming Chen
Keyword(s):  
Quantum Dots ◽  
Hybrid Structure ◽  
Pbs Quantum Dots

Charge character in the double‐barrier quantum dots in well hybrid structure

2015 ◽  
Vol 10 (10) ◽  
pp. 533-536 ◽  
Author(s):  
Wenguo Ning ◽  
Weiwei Wang ◽  
Xiaobo Jin ◽  
Fangmin Guo ◽  
Fangyu Yue
Keyword(s):  
Quantum Dots ◽  
Hybrid Structure ◽  
Double Barrier

Energy Transfer Between Single Semiconductor Quantum Dots and Organic Dye Molecules

2018 ◽  
Vol 232 (9-11) ◽  
pp. 1513-1526 ◽  
Author(s):  
Dzmitry Melnikau ◽  
Thomas Hendel ◽  
Pavel A. Linkov ◽  
Pavel S. Samokhvalov ◽  
Igor R. Nabiev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Single Photon ◽  
Hybrid Structure ◽  
Semiconductor Quantum Dots ◽  
Organic Dye ◽  
Hybrid Nanostructures ◽  
Dye Molecules ◽  
Time Resolved ◽  
Photon Generation

Abstract An understanding of the mechanisms of energy transfer and conversion on the nanoscale is one of the key requirements for an implementation of highly efficient photonic nanodevices based on hybrid organic/inorganic nanomaterials. In this work we conduct steady-state and time resolved optical studies of the emission properties of an ensembles and single semiconductor quantum dots and attached organic dye molecules. We revealed that the luminescence intensity of a hybrid structure does not follow the blinking behavior of quantum dots. We also demonstrated an efficient single photon generation from single hybrid nanostructures which involves an energy transfer from donor to acceptor as main excitation source.

scholarly journals Gas Sensitivity of In0.3Ga0.7As Surface QDs Coupled to Multilayer Buried QDs

2020 ◽  
Vol 10 (3) ◽  
pp. 283-290
Author(s):  
Guodong Wang ◽  
Zengguang Liu ◽  
Junjun Wang ◽  
Yingli Yang ◽  
Xiaolian Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrical Response ◽  
Strong Dependence ◽  
Surface States ◽  
Reference Structure ◽  
Temperature Dependent ◽  
Gas Sensitivity ◽  
Acetone Concentration ◽  
Pl Spectra ◽  
Coupling Structure

AbstractA detailed analysis of the electrical response of In0.3Ga0.7As surface quantum dots (SQDs) coupled to 5-layer buried quantum dots (BQDs) is carried out as a function of ethanol and acetone concentration while temperature-dependent photoluminescence (PL) spectra are also analyzed. The coupling structure is grown by solid source molecular beam epitaxy. Carrier transport from BQDs to SQDs is confirmed by the temperature-dependent PL spectra. The importance of the surface states for the sensing application is once more highlighted. The results show that not only the exposure to the target gas but also the illumination affect the electrical response of the coupling sample strongly. In the ethanol atmosphere and under the illumination, the sheet resistance of the coupling structure decays by 50% while it remains nearly constant for the reference structure with only the 5-layer BQDs but not the SQDs. The strong dependence of the electrical response on the gas concentration makes SQDs very suitable for the development of integrated micrometer-sized gas sensor devices.

Role of Surface Engineering of Hybrid Structure for High Performance Quantum Dots Based Photoelectrochemical Hydrogen Generation

2021 ◽  
pp. 132425
Author(s):  
Omar Abdelkarim ◽  
Gurpreet S. Selopal ◽  
Karthik Suresh ◽  
Fabiola Navarro-Pardo ◽  
Pawan Kumar ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Surface Engineering ◽  
Hydrogen Generation ◽  
Hybrid Structure
Sign in / Sign up

Export Citation Format

Share Document