Synergistic Effect of Pseudo-Halide Thiocyanate Anion and Cesium Cation on Realizing High-Performance Pinhole-Free MA-Based Wide-Band Gap Perovskites

2019 ◽  
Vol 11 (29) ◽  
pp. 25909-25916 ◽  
Author(s):  
Yue-Min Xie ◽  
Xiuwen Xu ◽  
Chunqing Ma ◽  
Menglin Li ◽  
Yuhui Ma ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Band Gap ◽  
High Performance ◽  
Wide Band ◽  
Wide Band Gap ◽  
Thiocyanate Anion ◽  
Cesium Cation

Layer-dependent photocatalysts of GaN/SiC-based multilayer van der Waals heterojunctions for Hydrogen Evolution

2021 ◽  
Author(s):  
Bojun Peng ◽  
Liang Xu ◽  
Jian Zeng ◽  
Xiaopeng Qi ◽  
Youwen Yang ◽  
...  
Keyword(s):  
Band Gap ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Van Der Waals ◽  
Environmentally Friendly ◽  
Wide Band ◽  
Two Dimensional ◽  
Wide Band Gap ◽  
Van Der Waals Heterostructures ◽  
Composite Photocatalysts

The development of non-precious, high-performance and environmentally friendly wide band gap semiconductor composite photocatalysts is highly desirable. Here we report two-dimensional (2D) GaN/SiC-based multilayer van der Waals heterostructures for hydrogen...

Cd1-xMgxS CQDs Thin Films for High Performance and Highly Selective NIR Photodetection

2021 ◽  
Author(s):  
Pragati Kumar ◽  
Tania Kalsi
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
High Performance ◽  
Wide Band ◽  
Cost Effective ◽  
Wide Band Gap ◽  
Wide Band Gap Semiconductors

Development of high-performance and highly selective NIR photodetectors (PDs) using wide band gap semiconductors is a significant field of research in the present scenario. Herein, cost effective and easy to...

Manipulating the Intermolecular Stacking of Polymeric Donors for Efficient Organic Solar Cells

2021 ◽  
Author(s):  
Yong Zhao ◽  
Yu Lu ◽  
Yonghai Li ◽  
Xiao Kang ◽  
Xichang Bao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Organic Solar Cells ◽  
High Performance ◽  
Wide Band ◽  
Wide Band Gap

Most polymer donors developed so far for high-performance non-fullerene OSCs are designed in planar molecular geometries containing BDT units. In this work, two D−A conjugated polymers with wide band gap,...

scholarly journals High-efficiency photovoltaic cells with wide optical band gap polymers based on fluorinated phenylene-alkoxybenzothiadiazole

2017 ◽  
Vol 10 (6) ◽  
pp. 1443-1455 ◽  
Author(s):  
Seo-Jin Ko ◽  
Quoc Viet Hoang ◽  
Chang Eun Song ◽  
Mohammad Afsar Uddin ◽  
Eunhee Lim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Performance ◽  
Optical Band Gap ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Photovoltaic Cells ◽  
Wide Band ◽  
Wide Band Gap

A new series of wide band gap photovoltaic polymers based on a fluorinated phenylene-alkoxybenzothiadiazole unit with an optical band gap of over 1.90 eV are designed and utilized for high-performance single- and multi-junction bulk heterojunction polymer solar cells.

A universal nonfullerene electron acceptor matching with different band-gap polymer donors for high-performance polymer solar cells

2018 ◽  
Vol 6 (16) ◽  
pp. 6874-6881 ◽  
Author(s):  
Zhenghui Luo ◽  
Guanghao Li ◽  
Wei Gao ◽  
Kailong Wu ◽  
Zhi-Guo Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Electron Acceptor ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap ◽  
Low Band Gap ◽  
High Performance Polymer ◽  
Medium Band

A new nonfullerene electron acceptor of m-MeIC was designed and synthesized, which is effective with different band-gap polymer donors, including wide band-gap J71, medium band-gap PBDB-T and low band-gap PCE-10.

Novel N-Black In2O3-x/InVO4 heterojunction for efficient photocatalytic fixation: Synergistic effect of exposed (321) facet and oxygen vacancy

2021 ◽  
Author(s):  
Jin Ye ◽  
Jiating Xu ◽  
Chunsheng Li ◽  
Di Tian ◽  
Xiaohan Zhao ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Synergistic Effect ◽  
Band Gap ◽  
Recombination Rate ◽  
Wide Band ◽  
Great Promise ◽  
Wide Band Gap ◽  
High Recombination Rate ◽  
Energy Shortage

Utilizing semiconductors to catalyze N2 into NH3 has brought great promise in alleviating the issue of energy shortage. However, the wide band gap and high recombination rate of photogenerated (e-/h+)...

In-situ Characterization of As-grown Surface of CIGS Films

2007 ◽  
Vol 1012 ◽  
Author(s):  
Hirotake Kashiwabara ◽  
Shimpei Teshima ◽  
Kazuya Kikunaga ◽  
Kazunori Takeshita ◽  
Tetsuji Okuda ◽  
...  
Keyword(s):  
Band Gap ◽  
High Performance ◽  
Identical Condition ◽  
Cell Structure ◽  
Wide Band ◽  
Surface Region ◽  
Valence Band Maximum ◽  
Wide Band Gap

AbstractIn-situ characterization of composition, electronic structure and their depth profiles of surface of Cu(In1-xGax)Se2 (CIGS) film grown by three stage co-evaporation has been carried out by means of photoemission and inverse photoemission spectroscopy (PES/IPES), for the purpose of investigating the formation mechanism of the CIGS-side wide band-gap region adjacent to CBD-CdS/CIGS interface in cell structure. Sample-transportation in vacuum below 1 x 10-8 Torr yielded almost contamination-free feature of the CIGS surface. The as-transferred surface of Cu0.93(In0.65Ga0.35)Se2 grown at the identical condition for the high performance solar cell exhibited seriously Cu and Ga deficient composition. Chemical formula of this region was inbetween Cu : (In+Ga): Se = 1 : 3 : 5 and 1 : 5 : 8. In-situ UPS/IPES measurements CIGS showed that the as-grown surface region of the CIGS already had expanded band gap energy up to 1.4 eV and n-type character. A gradual decrease of band energy and a rise of valence band maximum as a function of depth from the original surface were observed. These results have revealed that the surface of CIGS by the three stage method already has the wide band gap, which might originate in so-called Cu-vacancy ordered phase.

A wide band gap polymer based on indacenodithieno[3,2-b]thiophene for high-performance bulk heterojunction polymer solar cells

2017 ◽  
Vol 5 (2) ◽  
pp. 712-719 ◽  
Author(s):  
Woosung Lee ◽  
Jae Woong Jung
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Performance ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Wide Band ◽  
Wide Band Gap ◽  
Conversion Efficiencies

A novel wide band gap polymer (PIDTT-TT) has been synthesized to use in efficient polymer solar cells with power conversion efficiencies up to 7.10%.

A Highly Crystalline Wide-Band-Gap Conjugated Polymer toward High-Performance As-Cast Nonfullerene Polymer Solar Cells

2017 ◽  
Vol 9 (41) ◽  
pp. 36061-36069 ◽  
Author(s):  
Haiying Jiang ◽  
Zhen Wang ◽  
Lianjie Zhang ◽  
Anxing Zhong ◽  
Xuncheng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Conjugated Polymer ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

Iodide surface decoration: a facile and efficacious approach to modulating the band energy level of semiconductors for high-performance visible-light photocatalysis

2016 ◽  
Vol 52 (2) ◽  
pp. 354-357 ◽  
Author(s):  
Hongwei Huang ◽  
Ke Xiao ◽  
Shixin Yu ◽  
Fan Dong ◽  
Tierui Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
High Performance ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Wide Band ◽  
Wide Band Gap ◽  
Surface Decoration ◽  
Tunable Band Gap ◽  
Visible Light Photocatalytic

Iodide surface decoration enables the wide-band-gap Bi2O2CO3 to possess a continuously tunable band gap and profoundly boosted visible-light photocatalytic performance for dye degradation and NO removal.

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