n. a. khan, k. s. rahman, f. haque, n. dhar, m. a. islam, m. akhtaruzzaman, k. sopian and n. amin.  (2014).  design optimization of cdte thin film solar cells from numerical analysis.  - 8th international conference on electrical and computer engineering; 20-22 december, 2014, dhaka, bangladesh.  508 - 511. 

imamzai, m.n., rashid, m.j. ; khan, n.a. ; huda, q. ; akhtaruzzaman, m. ; sopian, k. ; amin, n.  (2014).  prospects of novel cdznte thin film solar cells from numerical analysis.  - 2nd international conference on green energy and technology (icget) 2014.  126-131. 

s. a. nadi, p. chelvanathan, , m. m. alam, m. akhtaruzzaman, k. sopian, a.s.m. mukter uzzaman and n. amin.  (2013).  effect of substrate temperature on the growth of czts thin films by rf magnetron sputtering.  - 2013 ieee conference on clean energy and technology (ceat).  . 

m. i. hossain, p. chelvanathan, m. m. alam, m. akhtaruzzaman, k. sopian and n. amin.  (2013).  potential buffer layers for cu2znsns4 (czts) solar cells from numerical analysis.  - ieee conference on clean energy and technology (ceat 2013).  .