The chemical origin of the p-type and n-type doping effects in the hybrid methylammonium–lead iodide (MAPbI3) perovskite solar cells

2015 ◽  
Vol 51 (80) ◽  
pp. 14917-14920 ◽  
Author(s):  
Lyubov A. Frolova ◽  
Nadezhda N. Dremova ◽  
Pavel A. Troshin
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Doping Effects ◽  
P Type ◽  
Methylammonium Lead Iodide

A field-induced and photoinduced self-doping chemistry of the MAPbI3 perovskite films affecting their photovoltaic performance and stability is proposed.

scholarly journals The dynamics of methylammonium ions in hybrid organic–inorganic perovskite solar cells

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Aurelien M. A. Leguy ◽  
Jarvist Moore Frost ◽  
Andrew P. McMahon ◽  
Victoria Garcia Sakai ◽  
W. Kockelmann ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Time Window ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
High Efficiency Solar Cells ◽  
Scattering Measurements ◽  
Quasielastic Neutron ◽  
Methylammonium Lead Iodide

Abstract Methylammonium lead iodide perovskite can make high-efficiency solar cells, which also show an unexplained photocurrent hysteresis dependent on the device-poling history. Here we report quasielastic neutron scattering measurements showing that dipolar CH3NH3 + ions reorientate between the faces, corners or edges of the pseudo-cubic lattice cages in CH3NH3PbI3 crystals with a room temperature residence time of ∼14 ps. Free rotation, π-flips and ionic diffusion are ruled out within a 1–200-ps time window. Monte Carlo simulations of interacting CH3NH3 + dipoles realigning within a 3D lattice suggest that the scattering measurements may be explained by the stabilization of CH3NH3 + in either antiferroelectric or ferroelectric domains. Collective realignment of CH3NH3 + to screen a device’s built-in potential could reduce photovoltaic performance. However, we estimate the timescale for a domain wall to traverse a typical device to be ∼0.1–1 ms, faster than most observed hysteresis.

scholarly journals Effects of Solution-Based Fabrication Conditions on Morphology of Lead Halide Perovskite Thin Film Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Jeremy L. Barnett ◽  
Vivien L. Cherrette ◽  
Connor J. Hutcherson ◽  
Monica C. So
Keyword(s):  
Solar Cells ◽  
Film Formation ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Thin Film Solar Cells ◽  
Solution Temperature ◽  
Processing Conditions ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide ◽  
Lead Halide

We present a critical review of the effects of processing conditions on the morphology of methylammonium lead iodide (CH3NH3PbI3) perovskite solar cells. Though difficult to decouple from synthetic and film formation effects, a single morphological feature, specifically grain size, has been evidently linked to the photovoltaic performance of this class of solar cells. Herein, we discuss experimental aspects of optimizing the (a) temperature and time of annealing, (b) spin-coating parameters, and (c) solution temperature of methylammonium iodide (MAI) solution.

Ferroelectric domains in methylammonium lead iodide perovskite solar cells

2018 ◽  
Author(s):  
Holger Röhm ◽  
Tobias Leonhard ◽  
Michael J. Hoffmann ◽  
Alexander Colsmann
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Ferroelectric Domains ◽  
Methylammonium Lead Iodide

Semiconductor self-assembled monolayers as selective contacts for efficient PiN perovskite solar cells

2019 ◽  
Vol 12 (1) ◽  
pp. 230-237 ◽  
Author(s):  
E. Yalcin ◽  
M. Can ◽  
C. Rodriguez-Seco ◽  
E. Aktas ◽  
R. Pudi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Molecules ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Self Assembled Monolayers ◽  
Lead Iodide ◽  
Assembled Monolayers ◽  
Type Contact ◽  
Self Assembled ◽  
P Type

Herein, we studied the use of two different Self Assembled Monolayers (SAMs) made of semiconductor hole transport organic molecules to replace the most common p-type contact, PEDOT:PSS, in PiN methyl ammonium lead iodide perovskite solar cells (PSCs).

Improving the stability of methylammonium lead iodide perovskite solar cells by cesium doping

2018 ◽  
Vol 667 ◽  
pp. 40-47 ◽  
Author(s):  
Yuman Fan ◽  
Helin Qin ◽  
Wang Ye ◽  
Meizhuang Liu ◽  
Feng Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
The Stability ◽  
Methylammonium Lead Iodide
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