Improving the Performance of Perovskite Solar Cells Through Solvent Vapor Annealing-based Morphology Control of the Hole-Transport Layer

2018 ◽  
Vol 6 (7) ◽  
pp. 1283-1289 ◽  
Author(s):  
Guanchen Liu ◽  
Xiaoyin Xie ◽  
Fanming Zeng ◽  
Zhihai Liu
2018 ◽  
Vol 2 (10) ◽  
pp. 2154-2159 ◽  
Author(s):  
Xing Guo ◽  
Bingjuan Zhang ◽  
Zhenhua Lin ◽  
Jie Su ◽  
Zhou Yang ◽  
...  

The solvent vapor annealing effect on conjugated polymer thin films as well as the corresponding perovskite solar cell devices is investigated.


Nanoscale ◽  
2018 ◽  
Vol 10 (23) ◽  
pp. 11043-11051 ◽  
Author(s):  
Guanchen Liu ◽  
Xiaoyin Xie ◽  
Zhihai Liu ◽  
Guanjian Cheng ◽  
Eun-Cheol Lee

We introduced alcohol based vapor annealing of the hole transport layer for fabricating high-performance inverted perovskite solar cells.


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.


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