![Introduction to Black Hole Physics: Frolov, Valeri P., Zelnikov, Andrei: 9780199692293: Amazon.com: Books Introduction to Black Hole Physics: Frolov, Valeri P., Zelnikov, Andrei: 9780199692293: Amazon.com: Books](https://m.media-amazon.com/images/I/514D9Ce2LvL._AC_UF1000,1000_QL80_.jpg)
Introduction to Black Hole Physics: Frolov, Valeri P., Zelnikov, Andrei: 9780199692293: Amazon.com: Books
![A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/136135/content_24_05.png)
A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole
![First Principles Design of High Hole Mobility p-Type Sn–O–X Ternary Oxides: Valence Orbital Engineering of Sn2+ in Sn2+–O–X by Selection of Appropriate Elements X | Chemistry of Materials First Principles Design of High Hole Mobility p-Type Sn–O–X Ternary Oxides: Valence Orbital Engineering of Sn2+ in Sn2+–O–X by Selection of Appropriate Elements X | Chemistry of Materials](https://pubs.acs.org/cms/10.1021/acs.chemmater.0c03495/asset/images/medium/cm0c03495_0010.gif)
First Principles Design of High Hole Mobility p-Type Sn–O–X Ternary Oxides: Valence Orbital Engineering of Sn2+ in Sn2+–O–X by Selection of Appropriate Elements X | Chemistry of Materials
Interlayer Engineering of Band Gap and Hole Mobility in p-Type Oxide SnO | ACS Applied Materials & Interfaces
![A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in Fig. 16.3. The pencil of light coming out of the hole A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in Fig. 16.3. The pencil of light coming out of the hole](https://haygot.s3.amazonaws.com/questions/82302_b43ccf4afe4d42abba307f387eef82f8.png)
A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in Fig. 16.3. The pencil of light coming out of the hole
p-Doping of organic hole transport layers in p–i–n perovskite solar cells: correlating open-circuit voltage and photoluminescence quenching - Journal of Materials Chemistry A (RSC Publishing)
![Achieving 9.6% efficiency in 304 nm p-AlGaN UVB LED via increasing the holes injection and light reflectance | Scientific Reports Achieving 9.6% efficiency in 304 nm p-AlGaN UVB LED via increasing the holes injection and light reflectance | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-022-04876-x/MediaObjects/41598_2022_4876_Fig1_HTML.png)