Broadband Light Absorption and Efficient Charge Separation Using a Light Scattering Layer with Mixed Cavities for High-Performance Perovskite Photovoltaic Cells with Stability

Small ◽  
2017 ◽  
Vol 13 (30) ◽  
pp. 1700418 ◽  
Author(s):  
Byeong Cheul Moon ◽  
Jung Hyo Park ◽  
Dong Ki Lee ◽  
Nikolai Tsvetkov ◽  
Ilwoo Ock ◽  
...  
Keyword(s):  
Light Scattering ◽  
Light Absorption ◽  
Charge Separation ◽  
High Performance ◽  
Photovoltaic Cells ◽  
Scattering Layer ◽  
Efficient Charge ◽  
Perovskite Photovoltaic

scholarly journals Solution-Processible Crystalline NiO Nanoparticles for High-Performance Planar Perovskite Photovoltaic Cells

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Uisik Kwon ◽  
Bong-Gi Kim ◽  
Duc Cuong Nguyen ◽  
Jong-Hyeon Park ◽  
Na Young Ha ◽  
...  
Keyword(s):  
High Performance ◽  
Photovoltaic Cells ◽  
Nio Nanoparticles ◽  
Perovskite Photovoltaic

scholarly journals Carbon Nanodots as a Potential Transport Layer for Boosting Performance of All-Inorganic Perovskite Nanocrystals-based Photodetector

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 717
Author(s):  
Hassan Algadi ◽  
Ahmad Umar ◽  
Hasan Albargi ◽  
Turki Alsuwian ◽  
Sotirios Baskoutas
Keyword(s):  
Charge Separation ◽  
High Performance ◽  
Band Alignment ◽  
Transport Layer ◽  
Carbon Nanodots ◽  
Separation Mechanism ◽  
Perovskite Layer ◽  
Inorganic Perovskite ◽  
Highly Efficient ◽  
Efficient Charge

A low-cost and simple drop-casting method was used to fabricate a carbon nanodot (C-dot)/all-inorganic perovskite (CsPbBr3) nanosheet bilayer heterojunction photodetector on a SiO2/Si substrate. The C-dot/perovskite bilayer heterojunction photodetector shows a high performance with a responsivity (R) of 1.09 A/W, almost five times higher than that of a CsPbBr3-based photodetector (0.21 A/W). In addition, the hybrid photodetector exhibits a fast response speed of 1.318/1.342 µs and a highly stable photocurrent of 6.97 µA at 10 V bias voltage. These figures of merits are comparable with, or much better than, most reported perovskite heterojunction photodetectors. UV–Vis absorption and photoluminescent spectra measurements reveal that the C-dot/perovskite bilayer heterojunction has a band gap similar to the pure perovskite layer, confirming that the absorption and emission in the bilayer heterojunction is dominated by the top layer of the perovskite. Moreover, the emission intensity of the C-dot/perovskite bilayer heterojunction is less than that of the pure perovskite layer, indicating that a significant number of charges were extracted by the C-dot layer. The studied band alignment of the C-dots and perovskites in the dark and under emission reveals that the photodetector has a highly efficient charge separation mechanism at the C-dot/perovskite interface, where the recombination rate between photogenerated electrons and holes is significantly reduced. This highly efficient charge separation mechanism is the main reason behind the enhanced performance of the C-dot/perovskite bilayer heterojunction photodetector.

V-rich Bi2S3 nanowire with efficient charge separation and transport for high-performance and robust photoelectrochemical application under visible light

2020 ◽  
Vol 350 ◽  
pp. 47-55
Author(s):  
Yuan-Yuan Geng ◽  
Chun-Lan Tao ◽  
Shi-Fang Duan ◽  
Jovan San Martin ◽  
Yixiong Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
High Performance ◽  
Efficient Charge

Enhanced ferroelectric photovoltaic effect in semiconducting single-wall carbon nanotube/BiFeO3 heterostructures enabled by wide-range light absorption and efficient charge separation

2020 ◽  
Vol 8 (20) ◽  
pp. 10377-10385
Author(s):  
Hojin Lee ◽  
Hyo-Sun Kim ◽  
Oh Yeong Gong ◽  
Jun Young Kim ◽  
Jin Hong Kim ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Light Absorption ◽  
Charge Separation ◽  
Photovoltaic Effect ◽  
Photovoltaic Devices ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Wide Range ◽  
Efficient Charge

Ferroelectric photovoltaic heterostructures demonstrate the synergistic integration of materials with different functionalities is a promising approach for the design of photovoltaic devices with tunable performance.

scholarly journals Consecutive Junction-Induced Efficient Charge Separation Mechanisms for High-Performance MoS2/Quantum Dot Phototransistors

2018 ◽  
Vol 10 (44) ◽  
pp. 38264-38271 ◽  
Author(s):  
Sangyeon Pak ◽  
Yuljae Cho ◽  
John Hong ◽  
Juwon Lee ◽  
Sanghyo Lee ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Separation ◽  
High Performance ◽  
Separation Mechanisms ◽  
Efficient Charge
Sign in / Sign up

Export Citation Format

Share Document