P3HT as hole transport material and assistant light absorber in CdS quantum dots-sensitized solid-state solar cells

2011 ◽  
Vol 47 (22) ◽  
pp. 6461 ◽  
Author(s):  
Jin Qian ◽  
Qi-Sheng Liu ◽  
Gang Li ◽  
Ke-Jian Jiang ◽  
Lian-Ming Yang ◽  
...  
2020 ◽  
Vol 44 (2) ◽  
pp. 505-512 ◽  
Author(s):  
Xiaoli Mao ◽  
Jianguo Yu ◽  
Jun Xu ◽  
Juntian Zhou ◽  
Cheng Luo ◽  
...  

The synchronous deposition of PbS and CdS affords band-structure tailoring and surface recombination passivation for efficient and stable solid-state QDSCs.


2019 ◽  
Vol 19 ◽  
pp. 79-85
Author(s):  
Lida Givalou ◽  
Maria Antoniadou ◽  
Andreas Kaltzoglou ◽  
Polycarpos Falaras

2011 ◽  
Vol 1 (6) ◽  
pp. 1169-1175 ◽  
Author(s):  
Thomas P. Brennan ◽  
Pendar Ardalan ◽  
Han-Bo-Ram Lee ◽  
Jonathan R. Bakke ◽  
I-Kang Ding ◽  
...  

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 404
Author(s):  
Abdul Sami ◽  
Arsalan Ansari ◽  
Muhammad Dawood Idrees ◽  
Muhammad Musharraf Alam ◽  
Junaid Imtiaz

Perovskite inorganic-organic solar cells are fabricated as a sandwich structure of mesostructured TiO2 as electron transport layer (ETL), CH3NH3PbI3 as active material layer (AML), and Spiro-OMeTAD as hole transport layer (HTL). The crystallinity, structural morphology, and thickness of TiO2 layer play a crucial role to improve the overall device performance. The randomly distributed one dimensional (1D) TiO2 nanowires (TNWs) provide excellent light trapping with open voids for active filling of visible light absorber compared to bulk TiO2. Solid-state photovoltaic devices based on randomly distributed TNWs and CH3NH3PbI3 are fabricated with high open circuit voltage Voc of 0.91 V, with conversion efficiency (CE) of 7.4%. Mott-Schottky analysis leads to very high built-in potential (Vbi) ranging from 0.89 to 0.96 V which indicate that there is no depletion layer voltage modulation in the perovskite solar cells fabricated with TNWs of different lengths. Moreover, finite-difference time-domain (FDTD) analysis revealed larger fraction of photo-generated charges due to light trapping and distribution due to field convergence via guided modes, and improved light trapping capability at the interface of TNWs/CH3NH3PbI3 compared to bulk TiO2.


Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 198 ◽  
Author(s):  
Michèle Chevrier ◽  
Alberto Fattori ◽  
Laurent Lasser ◽  
Clément Kotras ◽  
Clémence Rose ◽  
...  

Chlorophyll a derivatives were integrated in “all solid-state” dye sensitized solar cells (DSSCs) with a mesoporous TiO2 electrode and 2′,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene as the hole-transport material. Despite modest power conversion efficiencies (PCEs) between 0.26% and 0.55% achieved for these chlorin dyes, a systematic investigation was carried out in order to elucidate their main limitations. To provide a comprehensive understanding of the parameters (structure, nature of the anchoring group, adsorption …) and their relationship with the PCEs, density functional theory (DFT) calculations, optical and photovoltaic studies and electron paramagnetic resonance analysis exploiting the 4-carboxy-TEMPO spin probe were combined. The recombination kinetics, the frontier molecular orbitals of these DSSCs and the adsorption efficiency onto the TiO2 surface were found to be the key parameters that govern their photovoltaic response.


Author(s):  
Liuying Zhao ◽  
Fufang Zhou ◽  
Songjie Han ◽  
Ping Wang ◽  
Bi Jing

2020 ◽  
Vol 18 ◽  
pp. 103253 ◽  
Author(s):  
G. Mnasri ◽  
S. Mansouri ◽  
M. Yalçin ◽  
L. El Mir ◽  
Ahmed A. Al-Ghamdi ◽  
...  

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