Improved Photovoltaic Efficiency and Amplified Photocurrent Generation in Mesoporous n = 1 Two-Dimensional Lead‒Iodide Perovskite Solar Cells
Febriansyah, Benny; Koh, Teck Ming; Lekina, Yulia; Jamaludin, Nur Fadilah; Bruno, Annalisa; Ganguly, Rakesh; Shen, Ze Xiang; Mhaisalkar, Subodh G.; England, Jason; Chemistry of Materials 31 (2019) 890–; doi:10.1021/acs.chemmater.8b04064

data_4003077
_publ_section_title
;
 Improved Photovoltaic Efficiency and Amplified Photocurrent Generation in
 Mesoporous n = 1 Two-Dimensional Lead--Iodide Perovskite Solar Cells
;
_journal_issue                   3
_journal_name_full               'Chemistry of Materials'
_journal_page_first              890
_journal_paper_doi               10.1021/acs.chemmater.8b04064
_journal_volume                  31
_journal_year                    2019
_chemical_formula_sum            'C32 H45 I8 N4 Pb2'
_chemical_formula_weight         1915.30
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2018-05-07 deposited with the CCDC.
2018-08-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.2960(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.3353(2)
_cell_length_b                   12.2206(3)
_cell_length_c                   32.2371(8)
_cell_measurement_reflns_used    9852
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      29.6115
_cell_measurement_theta_min      2.4654
_cell_volume                     4845.92(19)
_computing_cell_refinement       'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_data_collection       'APEX3 (Bruker AXS Inc., 2017)'
_computing_data_reduction        'SAINT V8.38A (Bruker AXS Inc., 2017)'
_computing_publication_material  'APEX3 (Bruker AXS Inc., 2017)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'XS, VERSION 2013/1'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Photon II CPADs detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Multilayer Mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0182
_diffrn_reflns_av_unetI/netI     0.0214
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            30212
_diffrn_reflns_theta_full        29.64
_diffrn_reflns_theta_max         29.64
_diffrn_reflns_theta_min         2.35
_diffrn_source                   'Incoatec microfocus source'
_diffrn_source_type              'Bruker D8 Quest'
_exptl_absorpt_coefficient_mu    12.061
_exptl_absorpt_correction_T_max  0.79
_exptl_absorpt_correction_T_min  0.12
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.625
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             3412
_exptl_crystal_size_max          0.060
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.020
_refine_diff_density_max         1.839
_refine_diff_density_min         -3.544
_refine_ls_abs_structure_details
;

Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.564(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.125
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     420
_refine_ls_number_reflns         12542
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.125
_refine_ls_R_factor_all          0.0395
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0710P)^2^+6.9304P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1038
_refine_ls_wR_factor_ref         0.1045
_reflns_number_gt                12154
_reflns_number_total             12542
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cm8b04064_si_002.cif
_cod_data_source_block           (PEA)2[PbI4](3)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               4003077
_shelx_res_checksum              2019
_shelx_hkl_checksum              94202