1D materials have attracted significant research interest due to their unique quantum confinement effects and edge‐related properties. Atomically thin 1D nanoribbons are particularly interesting because it is a valuable platform with the physical limits of both thickness and width. Here, a catalyst‐free growth method is developed and the growth of Bi2O2Se nanostructures with tunable dimensionality is achieved. Significantly, Bi2O2Se nanoribbons with a thickness down to 0.65 nm, corresponding to a monolayer, are successfully grown for the first time. Electrical and optoelectronic measurements show that Bi2O2Se nanoribbons possess decent performance in terms of mobility, on/off ratio, and photoresponsivity, suggesting their promise for devices. This work not only reports a new method for the growth of atomically thin nanoribbons but also provides a platform to study properties and applications of such nanoribbon materials at a thickness limit.

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The interpretation of petrophysical logs unveil the reservoir traits and augment an intuition of hydrocarbon (gas) bearing zones. This study focused on interpretation of petrophysical signatures (encountered in Kadanwari-01, 03, 10 and 11) of Lower Goru Formation (LGF). LGF composed of shoreface sands and near shelf shale, deposited in Cretaceous age in middle and lower Indus basins, Pakistan. The results upshot the reservoir potential tapped in interbeded sand packages of LGF. The petrophysical attributes such as shale content from radioactivity tools (GR, SGR), effective porosity from NPHI-RHOB response and average porosity, derived fluids saturation of porous sand reservoir pockets by averaging, the Wyllie-Rose permeability of the selected producing zones and matching of respective resistivity responses (LLD, LLS) quantified in LGF. Lithology indicator (M-N plots) and mineral identification (MID) plot provide a basis to classify the lithology of potential sands derived by neutron, density and sonic logs. The isoperimetric surfaces depict the spatial distribution of derived results of the corresponding prospect zone (PZ). A correlation from NE to SW of study area yields a lateral profile of physical characters and distribution of PZs. Prospect Zone-3 results exhibit good quality of reservoir sands (30-37 m thick), characterizing ND from 0.12 to 0.23 and S hc 0.36-0.6. PZ-3 and PZ-4 are evaluated best prospect zones in this study and may be recommended for drilling.

In article number 2101170, Bilu Liu, Hui‐Ming Cheng, and co‐workers synthesize atomically thin nanoribbons to exploit the property of materials with the physical limits of both thickness and width. The electronic and optoelectronic measurements of nanoribbons possess decent performance in terms of mobility, on/off ratio, and photoresponsivity, suggesting a platform to study the properties and applications of such nanoribbon materials at thickness limits.