List of research papers published
1. Optical absorption studies on AgGa0.25In0.75Se2 polycrystalline films
G. Hema Chandra, O.M. Hussain, S. Uthanna, B.Srinivasulu Naidu
Journal of Materials Science Letters 20 (2001) 63-65.
2. Characteristics of Al/p- AgGa0.25In0.75Se2 polycrystalline thin film Schottky barrier diodes
G. Hema Chandra, O.M. Hussain, S. Uthanna, B. Srinivasulu Naidu
Physica Scripta 63 (2001) 422-424.
3. Characterization of AgGa0.25In0.75Se2 thin films
G. Hema Chandra, O.Md. Hussain, S. Uthanna, B. Srinivasulu Naidu
Vacuum 62 (2001) 39-45.
4. Characterization of p- AgGa0.25In0.75Se2/n-Zn0.35Cd0.65S polycrystalline thin film heterojunctions
G. Hema Chandra, O.M. Hussain, S. Uthanna, B.Srinivasulu Naidu
Materials Science and Engineering B 86 (2001) 60-63.
5. Characterization of Cu0.5Ag0.5InSe2 thin films
G.Venkata Rao, G.Hema Chandra, O.Md. Hussain, S. Uthanna, B. Srinivasulu Naidu
Journal on Alloys and Compounds 325 (2001) 12-17.
6. Photoconductive response of polycrystalline Cu0.5Ag0.5InSe2 thin films
G.Venkata Rao, G.Hema Chandra, O.Md. Hussain, S. Uthanna, B. Srinivasulu Naidu
Journal of Materials Science: Materials in Electronics 12 (2001) 511-514.
7. Characteristics of Al/p-Cu0.5Ag0.5InSe2 polycrystalline thin film Schottky barrier diodes
G.Venkata Rao, G.Hema Chandra, O.Md. Hussain, S. Uthanna, B. Srinivasulu Naidu
Crystal Research Technology 36 (2001) 571-576.
8. Photovoltaic performance of p- AgGa0.25In0.75Se2/n-CdS thin film heterojunctions
G. Hema Chandra, O.M. Hussain, S. Uthanna, B. Srinivasulu Naidu
Materials Letters 53 (2002) 216-220.
9. Optical absorption studies on Cu0.5Ag0.5InSe2 polycrystalline films
G. Venkata Rao, G. Hema Chandra, P. Sreedhara Reddy, O. M. Hussain, K.T.R. Reddy, S. Uthanna
Vacuum 67 (2002) 293 – 298.
10. Influence of substrate temperature on the structural and optical properties of Cu0.5Ag0.5InSe2 films
G. Venkata Rao, G. Hema Chandra, P. Sreedhara Reddy, O. M. Hussain, K.T.R. Reddy, S. Uthanna
Journal of Optoelectronics and Advanced Materials 4 (2002) 387 – 392.
11. Structural and optical properties of CuIn0.35Al0.65Se2 thin films
K. Srinivas, J. N. Kumar, G. H. Chandra, S. Uthanna
Journal of Materials Science: Materials in Electronics 17(2006)1035-1039.
12. Preparation and characterization of flash evaporated Tin Selenide thin films
G. Hema Chandra, J. Naveen Kumar, N. Madhusudhana Rao, S. Uthanna
Journal of Crystal Growth 306, (2007) 68.
13. Influence of substrate temperature on structural, electrical and optical properties of
flash evaporated CuIn0.60Al0.40Se2 thin films
G. Hema Chandra, C. Udayakumar, S. Rajagopalan, A. K. Balamurugan, S. Uthanna
Physica Status Solidi A 206(4), (2009) 704–710 .
14. Growth of highly (111) oriented CuIn0.75Al0.25Se2 thin films
G. Hema Chandra, C. Udayakumar, N. Padhy and S.Uthanna
Materials Science in Semiconductor Processing 13 (4), (2010) 288-294.
15. The influence of argon pressure and RF power on the growth of InP thin films
G. Hema Chandra, J. Perez de la Cruz, J. Ventura
Semiconductor Science and Technology 26(7) (2011) 075017.
16. Influence of substrate and selenization temperatures on the growth of Cu2SnSe3 films
G. Hema Chandra, O. Lakshmana Kumar, R. Prasada Rao, S. Uthanna
Journal of Materials Science 46 (2011) 6952-6959 .
17. Microstructural and optoelectronic properties of polycrystalline InP films deposited by RF magnetron sputtering
G. Hema Chandra, J. Pérez de la Cruz
Journal of Crystal Growth 354 (2012) 67-75.
18. Influence of Process parameters on RF sputtered GaP Thin Films
D.A. Mota, G. Hema Chandra, J. Ventura, A. Guedes, J. Pérez de la Cruz
Journal of Materials Science & Technology 29(9) (2013) 821-829.
19. Two step growth mechanism of Cu2ZnSnS4 thin films
Narayana Thota, Y.P. Venkata Subbaiah, P. Prathap, Y.B.K. Reddy, G. Hema Chandra
Physica B: Condensed Matter 449 (2014) 255-260.
20. Growth and characterization of Cu2ZnGeSe4 thin films by selenization of multiple
stacks (Cu/Se/ZnSe/Se/Ge/Se) in high vacuum
G Swapna Mary, Dipak Ramdas Nagapure, Rhishikesh Mahadev Patil, G. Hema Chandra,
M Anantha Sunil, R Prasada Rao, Mukul Gupta, YP Venkata Subbaiah
Vacuum 131 (2016) 264-270.
21. Growth and properties of Cu2ZnSnS4 thin films prepared by multiple metallic layer stacks as a function of sulfurization time
Narayana Thota, M Gurubhaskar, AC Kasi Reddy, G. Hema Chandra, BR Mehta, Ashutosh Tiwari, YP Venkata Subbaiah
Journal of Materials Science: Materials in Electronics 28(16) (2017) 11702-11711.
22. Effect of selenium incorporation at precursor stage on growth and properties of Cu2ZnSnSe4 thin films
Dipak Ramdas Nagapure, Rhishikesh Mahadev Patil, G Swapna Mary, G. Hema Chandra,
M Anantha Sunil, Y.P. Venkata Subbaiah, Mukul Gupta, R Prasada Rao
Vacuum 144 (2017) 43-52.
23. A Facile and TGA Free Hydrothermal Synthesis of SnS Nanoparticles
M Gurubhaskar, Narayana Thota, M Raghavender, YP Venkata Subbaiah, G. Hema Chandra, KT Ramakrishna Reddy
Nano 12(10) (2017) 1750120.
24. Impact of selenization pressure on the micro-structural properties of Cu2ZnSnSe4 thin films
Dipak Ramdas Nagapure, Rhishikesh Mahadev Patil, G. Hema Chandra, M Anantha Sunil,
YP Venkata Subbaiah, Mukul Gupta, R Prasada Rao
Superlattices and Microstructures 110 (2017) 252-264.
25. Low temperature crystallization of Cu2ZnSnSe4 thin films using binary selenide precursors
Rhishikesh Mahadev Patil, Dipak Ramdas Nagapure, G Swapna Mary, G. Hema Chandra,
M Anantha Sunil, YP Venkata Subbaiah, P Prathap, Mukul Gupta, R. Prasada Rao
Journal of Materials Science: Materials in Electronics 28(23) (2017) 18244-18253.
26. Influence of Selenization Time on Microstructural, Optical, and Electrical Properties of Cu2ZnGeSe4 Films
G Swapna Mary, G. Hema Chandra, M Anantha Sunil, Mukul Gupta
Journal of Electronic Materials 47(1) (2018) 800-810.
27. Impact of stacking order on the microstructural properties of Cu2ZnGeSe4 thin film absorber layer
G Swapna Mary, G. Hema Chandra, M Anantha Sunil, YP Venkata Subbaiah,
Mukul Gupta, R Prasada Rao
Superlattices and Microstructures 117 (2018) 437-448.
28. Influence of sulfurization time on two step grown SnS thin films
M Gurubhaskar, Narayana Thota, M Raghavender, G. Hema Chandra, P Prathap, YP Venkata Subbaiah
Vacuum 155 (2018) 318-324.
29. Growth and characterization of Ge-substituted Cu2ZnSnSe4 thin films
Dipak Ramdas Nagapure, Rhishikesh Mahadev Patil, G. Hema Chandra, M Anantha
Sunil, YP Venkata Subbaiah, Mukul Gupta, R Prasada Rao
Materials Science in Semiconductor Processing 87 (2018) 77-85.
30. Influence of selenium doping on structural, morphological and thermoelectric properties of nanocrystalline PbTe100−xSex thin films
L Kungumadevi, R Sathyamoorthy, G. Hema Chandra
Journal of Materials Science: Materials in Electronics 30(1) (2019) 424-431.
31. Impact of antisite defect complex on optical and electrical properties of Ag2ZnSnSe4 thin films
RM Patil, DR Nagapure, G. Hema Chandra, YPV Subbaiah, M Gupta, R Prasada Rao
Physica Status Solidi (a) 217(8) (2020) 1900752.
32. Growth of AZTSe thin films by rapid thermal processing and numerical simulation of p-CZTSe/n-AZTSe thin film heterojunction
RM Patil, G. Hema Chandra, YPV Subbaiah, P Prathap, M Gupta
Applied Physics A 127 (4) (2021) 1-12.
33. Impact of pre-annealing time on the growth and properties of Ag2ZnSnSe4 thin films
RM Patil, G. Hema Chandra, YPV Subbaiah, M Gupta, RP Rao
Journal of Physics and Chemistry of Solids 154 (2021) 110067.
34. Two-step approach for the growth of Cu0. 5Ag0. 5InSe2 thin films
Shaik Babujani, G Hema Chandra, YP Venkata Subbaiah, Mukul Gupta, R Prasada Rao
Optik 248 (2021) 168203.
35. Role of aluminum distribution on the growth of CuIn0. 75Al0. 25Se2 films and numerical simulation of
p-CuIn0. 75Al0. 25Se2/n-CuAlSe2 heterojunction solar cell
Shaik Babujani, Bandi Srinivas, G. Hema Chandra, YPV Subbaiah, M Gupta, R. Prasada Rao
Journal of Materials Science: Materials in Electronics 33 (2022) 2699–2715.
36. Synthesis and characterization of Cu-sandwiched Sb2Se3 thin films and numerical simulation of p-Sb2Se3/n-ZnSe heterojunction solar cell
Bandi Srinivas, Shaik Babujani, G. Hema Chandra, Y.P. Venkata Subbaiah, Mukul Gupta
Optical Materials 135 (2023) 113289.
37. Effect of Pre‐annealing Treatment on Growth and Properties of (Cu0.5Ag0.5)2ZnSnSe4 Thin Films
R.M. Patil, Rohit Mondal, Shaik Babujani, G. Hema Chandra, YPV Subbaiah, M Gupta, R. Prasada Rao,
Physica Status Solidi (b) 261(6) (2024) 2400044.
38. Insights into the Structural and Optical Properties of (Cu, Ag)2ZnSnSe4 Thin Films: Role of Pre-annealing and Selenization times
Rohit Mondal, G. Hema Chandra, YPV Subbaiah, M Gupta, R. Prasada Rao,
Optical Materials 154 (2024) 115618.
39. Facile hydrothermal synthesis of Sb2S3Thin-film Photo-cathodes for Green Hydrogen Energy Production
V. Neeraja, T. Narayana, G. Hema Chandra, M Raghavender, D, Amarnatha Reddy, YPV Subbaiah
Physica B: Condensed Matter 695 (2024) 416484.
40. The Influence of nano structuring and combined doping (Ag and Sb) on the thermoelectric properties of PbTe thin film
L Kungumadevi, G. Hema Chandra
Chemical Physics Impact (2024) 4100736.
41. Impact of selenium content on the growth kinetics and optoelectronic properties of Ag-substituted Cu2ZnSnSe4 thin films
Rohit Mondal, G Hema Chandra, YP Subbaiah, Mukul Gupta
Journal of Materials Science: Materials in Electronics 36(5) (2025) 1-17.
42. Cocatalyst-Free and Highly Crystalline Sb2S3 Nanorods for Enhanced Hydrogen Yield Under Sunlight
V. Neeraja, T. Narayana, G. Hema Chandra, D, Amarnatha Reddy, YPV Subbaiah
ACS Applied Energy Materials 8(7) (2025) 4506-4515.
43. Diffusive enriched electron beam evaporated ZnSe thin flm: electrochemical supercapacitive energy storage application
Mayank Tiwari, Deepak Jangir, T. Kedara Shivasharma, G. Hema Chandra, B.R. Sankapal
Ionics 31(6) (2025) 1-12.
44. Investigation of exchange coupling and dielectric response of hard/soft SrFe10Al2O19/CoFe2O4 ferrite composites
Gitesh I Choudhari, Isha Bhasin, K Damodar Reddy, G. Hema Chandra
Inorganic Chemistry Communications Ionics 179(2) (2025) 114790 .
45. Supercycle-Modulated Transparent Conductive Hf-Doped ZnO Thin Films by Thermal ALD for Photovoltaic Applications
Meenakshi, Abhishek Kumar, Meenakshi Devi, Rinki, Paras, Anil, Mrinal Dutta, Sanjay K Srivastava, Thomas Fix, Uttam Kumar Goutam, G Hema Chandra and
Prathap Pathi
ACS Applied Energy Materials 8 (15), (2025) 11214–11226.
46. Synthesis and Characterization of AgInTe2 Thin Films: Role of Annealing on Phase Formation and Optoelectronic Properties
Yashpal D Pawar, Rohit Mondal, G Hema Chandra, Manvendra Singh Gangwar, Vamsi K Komarala, Yerva P Venkata Subbaiah, Mukul Gupta
Journal of Physics: Condensed Matter 37 (43) (2025) 435701.
47. Fabrication of high-responsivity Sb2Se3 based near-infrared photodetectors through two step process
V. Neeraja, YPV Subbaiah, G. Hema Chandra
Optical Materials 169 (2026) 117654.
48. (Cu1-x, Agx)2ZnSnSe4 thin films for solar cell absorbers
Rohit Mondal, G Hema Chandra, Manvendra Singh Gangwar, Vamsi K Komarala, Yerva P Venkata Subbaiah, Mukul Gupta, R. Prasada Rao
Materials Chemistry and Physics 351 (2026) 131983.