Impact of substituent position on crystal structure and photoconductivity in 1D and 2D lead(ii) benzenethiolate coordination polymers

Abstract

Coordination polymers containing a sulfur coordination atom (S-CPs) are an emerging class of materials with unique optoelectronic properties resulting from their inorganic metal–sulfur (–M–S–)n networks. Although the structural dimensionalities of...

Lead(II)-Based Coordination Polymer Exhibiting Reversible Color Switching and Selective CO2 Photoreduction Properties

“…37 The φΣμ max value of CP1 (2.7 × 10 −5 cm 2 V −1 s −1 ) is similar to that of [Pb(ortho-SPhOMe) 2 ] n (2.5 × 10 −5 cm 2 V −1 s −1 ). 37 The low photoconductivity is related to their similar 1D (−Pb−S−) n chain dimension. These results again highlight the influence of the (−Pb−S−) n dimension on the charge mobility of Pb-based S-CP materials.…”

“…The TRMC signal or φΣμ max value, which is the product of the charge-carrier generation yield (φ) and sum of the hole and electron mobilities (Σμ), − of CP1 was 2.7 × 10 –5 cm 2 V –1 s –1 , which is moderate compared to other CPs. ,, The bandgap and photoconductivity of S-based CPs has been reported to be related to the (−M–S−) n dimension . In the case of Pb-based S-CPs, remarkable photoconductivity was observed from a CP with a 2D (−Pb–S−) n layer structure . The φΣμ max value of CP1 (2.7 × 10 –5 cm 2 V –1 s –1 ) is similar to that of [Pb­( ortho -SPhOMe) 2 ] n (2.5 × 10 –5 cm 2 V –1 s –1 ) .…”

“…10 In the case of Pb-based S-CPs, remarkable photoconductivity was observed from a CP with a 2D (−Pb−S−) n layer structure. 37 The φΣμ max value of…”

“…. 37 The low photoconductivity is related to their similar 1D (−Pb−S−) n chain dimension. These results again highlight the influence of the (−Pb−S−) n dimension on the charge mobility of Pb-based S-CP materials.…”

Polymorphism of Two‐Dimensional Semiconducting Coordination Polymers: Impact of a Lead–Sulfur Network on Photoconductivity

“…In prior studies, we demonstrated that most Pb(II) SÀ CPs with (À PbÀ SÀ ) n networks tend to absorb visible light. [19][20][21] In contrast, KGF-26 and KGF- [21] The absolute valence band maximum (VBM) levels were determined via photoelectron yield spectroscopy (PYS) [22] as À 6.00 eV (KGF-26) and À 5.92 eV (KGF-27) below the vacuum level (Figure S17). Considering the optical bandgap estimated by DRÀ UVÀ Vis spectroscopy, the conduction band minimum (CBM) was determined to be À 2.91 eV (KGF-26) and À 3.02 eV (KGF-27) below the vacuum level.…”