Oxidizing Agents

Strategies to Improve Electrical Conductivity in Metal–Organic Frameworks: A Comparative Study

“…Incorporation of iodine and polyiodides within the channels of MOFs is one of the easiest and most attractive strategies to enhance the electrical conductivity of MOFs. Due to its large size, electron density, and low electronegativity, I 2 becomes an ideal dopant in the form of either vapor or solution or even as a template . Zeng et al loaded I 2 within the 1D channels (∼11 × 10 Å 2 ) of MOF [Zn 3 ( d , l -lac) 2 (pybz) 2 ]·2.5DMF ( 71 ) (where d , l -lac = lactate and pybz = 4-pyridine benzoate anions) by soaking the MOF in a cyclohexane solution of I 2 (Figure ).…”

“…Due to its large size, electron density, and low electronegativity, I 2 becomes an ideal dopant in the form of either vapor or solution or even as a template. 127 21). The electrical conductivity of I 2 @MOF is 3.42 × 10 −3 S cm −1 along the channels and 1.65 × 10 −4 S cm −1 in the direction perpendicular to the channels.…”

A comparison of molecular iodine evolution on the chemistry of lead and tin perovskites

“…26,46 This instability has recently been demonstrated to be exacerbated by the ability of SnI 4 to further decompose into I 2 ; where I 2 is a strong oxidizer itself. 47 As such, the stability of tin PSCs is limited to mere hours in ambient air with stability measurements most often collected under storage in inert conditions. [48][49][50] The role of iodine and its equilibrium with iodide anions to form triiodide has been a long-running problem in developing stable-perovskite solar cells.…”

“…26,46 This instability has recently been demonstrated to be exacerbated by the ability of SnI 4 to further decompose into I 2 ; where I 2 is a strong oxidizer itself. 47 As such, the stability of tin PSCs is limited to mere hours in ambient air with stability measurements most often collected under storage in inert conditions. 48–50…”