Tellurium-Based Double Perovskites A2TeX6 with Tunable Band Gap and Long Carrier Diffusion Length for Optoelectronic Applications
Ju, Dianxing; Zheng, Xiaopeng; Yin, Jun; Qiu, Zhiwen; Türedi, Bekir; Liu, Xiaolong; Dang, Yangyang; Cao, Bingqiang; Mohammed, Omar F.; Bakr, Osman M.; Tao, Xutang; ACS Energy Letters 4 (2018) 228–; doi:10.1021/acsenergylett.8b02113

data_4516207
_publ_section_title
;
 Tellurium-Based Double Perovskites A2TeX6 with Tunable Band Gap and Long
 Carrier Diffusion Length for Optoelectronic Applications
;
_journal_issue                   1
_journal_name_full               'ACS Energy Letters'
_journal_page_first              228
_journal_paper_doi               10.1021/acsenergylett.8b02113
_journal_volume                  4
_journal_year                    2018
_chemical_formula_sum            'C4 H24 Br12 N4 Te2'
_chemical_formula_weight         1342
_space_group_IT_number           225
_space_group_name_Hall           '-F 4 2 3'
_space_group_name_H-M_alt        'F m -3 m'
_symmetry_cell_setting           cubic
_symmetry_space_group_name_H-M   'F m -3 m'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.445(8)
_cell_length_b                   11.445(8)
_cell_length_c                   11.445(8)
_cell_measurement_reflns_used    1217
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.88
_cell_measurement_theta_min      3.08
_cell_volume                     1499.2(18)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0409
_diffrn_reflns_av_sigmaI/netI    0.0117
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4381
_diffrn_reflns_theta_full        27.35
_diffrn_reflns_theta_max         27.35
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    17.938
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.3514
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.974
_exptl_crystal_density_meas      2.974
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.645
_refine_diff_density_min         -1.315
_refine_diff_density_rms         0.162
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.095
_refine_ls_matrix_type           full
_refine_ls_number_parameters     10
_refine_ls_number_reflns         121
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0451
_refine_ls_R_factor_gt           0.0367
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1069P)^2^+0.6262P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1292
_refine_ls_wR_factor_ref         0.1464
_reflns_number_gt                93
_reflns_number_total             121
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nz8b02113_si_004.cif
_cod_data_source_block           x
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Cubic' was changed to
'cubic' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        1499.1(19)
_cod_original_sg_symbol_H-M      Fm-3m
_cod_database_code               4516207