Perovskite solar cells (PSCs) have received considerable acclaim for their outstanding photovoltaic capabilities and cost-effectiveness. One of the major challenges, however, lies in the steep costs associated with charge transport materials. Traditional materials such as 2,2',7,7'-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (Spiro-OMeTAD) are expensive and difficult to manufacture. As a result, there is an urgent need to identify inexpensive yet efficient

— Also on TTHealthWatch: Pediatric Diabetes Post-COVID TTHealthWatch is a weekly podcast from Texas Tech, hosted by Elizabeth Tracey, the director of electronic media at Johns Hopkins, and Dr. Rick Lange, president of Texas Tech University Health Sciences Center, El Paso. Each week, they delve into the most significant medical news. This episode's discussions include topics such as the efficacy of nasal sprays for respiratory infections, the preventive use of Paxlovid, endometriosis and