2. In Figure 4(a), the carrier concentration of composite samples seems to be higher than pristine BTS, Please comment on the motivation in this work for increasing the carrier concentration?
2. In Figure 4(a), the carrier concentration of composite samples seems to be higher than pristine BTS, Please comment on the motivation in this work for increasing the carrier concentration?
2. In Figure 4(a), the carrier concentration of composite samples seems to be higher than pristine BTS, Please comment on the motivation in this work for increasing the carrier concentration?